Search filters

List of works by Vanderlan Bolzani

4'-Aminochalcones as novel inhibitors of the chlorinating activity of myeloperoxidase

scientific article

A Cyclotide Isolated from Noisettia orchidiflora (Violaceae)

scientific article published on 29 May 2018

A chromene and prenylated benzoic acid from Piper aduncum

scientific article published on 01 August 1999

A green and sustainable method for monitoring the chemical composition of soybean: an alternative for quality control

scientific article published on 29 October 2020

A green, simplified, and efficient experimental setup for a high-throughput screening of agri-food by-products - From polar to nonpolar metabolites in sugarcane solid residues

scientific article published on 10 November 2020

Absolute configuration and selective trypanocidal activity of gaudichaudianic acid enantiomers

scientific article published on 20 April 2011

Acetylated DNA-damaging clerodane diterpenes from Casearia sylvestris1Part 3 in the series “Search for bioactive compounds from Brazilian plant species”. For part 2 see [2]. Based on the M.Sc. thesis submitted by P.R.F. de C. to Universidade Esta

article

Activity of 3'-hydroxychalcone against Cryptococcus gattii and toxicity, and efficacy in alternative animal models.

scientific article published on 6 September 2017

Advanced Glycation End Product Inhibition by Alkaloids from Ocotea paranapiacabensis for the Prevention of Skin Aging

scientific article published on 05 March 2020

Alchornea glandulosa Ethyl Acetate Fraction Exhibits Antiangiogenic Activity: Preliminary Findings from In Vitro Assays Using Human Umbilical Vein Endothelial Cells

scientific article published on 11 June 2011

Alkaloids derived from flowers of Senna spectabilis, (-)-cassine and (-)-spectaline, have antiproliferative activity on HepG2 cells for inducing cell cycle arrest in G1/S transition through ERK inactivation and downregulation of cyclin D1 expression

scientific article published on 23 November 2015

Alkaloids extracted from Pterogyne nitens induce apoptosis in malignant breast cell line

scientific article

Alkaloids from stems of Esenbeckia leiocarpa Engl. (Rutaceae) as potential treatment for Alzheimer disease.

scientific article

Alkyl Protocatechuate-Loaded Nanostructured Lipid Systems as a Treatment Strategy for Paracoccidioides brasiliensis and Paracoccidioides lutzii In Vitro

scientific article published on 12 June 2017

An Unprecedented Neolignan Skeleton from Chimarrhis turbinata

scientific article published on 25 March 2011

Anti-Candida and anti-Cryptococcus evaluation of 15 non-alkaloidal compounds from Pterogyne nitens

Anti-angiogenic effects of pterogynidine alkaloid isolated from Alchornea glandulosa.

scientific article

Anti-apoptotic effects of decyl gallate on the induction of apoptosis in A549 pneumocytes by Paracoccidioides brasiliensis gp43.

scientific article published on 3 March 2017

Antibacterial activity of a stearic acid derivative from Stemodia foliosa

scientific article

Antibacterial activity of alkyl gallates against Xanthomonas citri subsp. citri.

scientific article published on 26 October 2012

Antibacterial activity of labdane diterpenoids from Stemodia foliosa

scientific article published on 27 June 2008

Antifungal Activity of Decyl Gallate against Several Species of Pathogenic Fungi.

scientific article

Antifungal Compounds Produced by Colletotrichum gloeosporioides, an Endophytic Fungus from Michelia champaca

scientific article published on 21 November 2014

Antifungal Iridoids from the Stems ofTocoyena formosa

Antifungal activity of maytenin and pristimerin

scientific article published on 22 May 2012

Antifungal amides from Piper hispidum and Piper tuberculatum

scientific article published on 01 November 2000

Antifungal polysulphides from Petiveria alliacea L.

scientific article published in July 2001

Antimicrobial activity of Pterogyne nitens Tul., Fabaceae, against opportunistic fungi

Antinociceptive Profile of (-)-Spectaline: A Piperidine Alkaloid from Cassia leptophylla

scientific article published on September 1, 2003

Antinociceptive profile of 2,3,6-trisubstituted piperidine alkaloids: 3-O-acetyl-spectaline and semi-synthetic derivatives of (-)-spectaline

scientific article

Antioxidant Quinonemethide Triterpenes fromSalacia campestris

scientific article published on 01 March 2005

Antioxidant flavan-3-ols and flavonol glycosides from Maytenus aquifolium

scientific article published in September 2003

Antioxidant flavonol glycosides from Nectandra grandiflora (Lauraceae)

Antioxidant phenolic and quinonemethide triterpenes from Cheiloclinium cognatum

scientific article published on 01 July 2004

Antioxidants, quinone reductase inducers and acetylcholinesterase inhibitors from Spondias tuberosa fruits

Antiproliferative activity of pristimerin isolated from Maytenus ilicifolia (Celastraceae) in human HL-60 cells

scientific article

Antiprotozoal sesquiterpene pyridine alkaloids from Maytenus ilicifolia

scientific article published on May 4, 2012

Antistaphylococcal Prenylated Acylphoroglucinol and Xanthones from Kielmeyera variabilis.

scientific article published on 22 February 2016

Anxiolytic effects of erythrinian alkaloids from Erythrina mulungu.

scientific article

Ao grande cientista Otto Richard Gottlieb, um pequeno ensaio de despedida

Application of MALDI-MS analysis of Rainforest chemodiversity: a keystone for biodiversity conservation and sustainable use.

scientific article published in November 2012

Aromatic compounds from three Brazilian Lauraceae species

Aromatic compounds produced by Periconia atropurpurea, an endophytic fungus associated with Xylopia aromatica.

scientific article published on 19 October 2006

Assessment of the chemopreventive effect of casearin B, a clerodane diterpene extracted from Casearia sylvestris (Salicaceae).

scientific article published on 28 November 2012

Balanço da gestão 2008-2010

Benzopyrans from Curvularia sp., an endophytic fungus associated with Ocotea corymbosa (Lauraceae).

scientific article

Bioactive flavone dimers from Ouratea multiflora (Ochnaceae)

Bioactive secondary metabolites from Phomopsis sp., an endophytic fungus from Senna spectabilis.

scientific article published on 22 May 2014

Bioactive sesquiterpene pyridine alkaloids from Maytenus aquifolium

Biological Activities of Constituentsfrom Psychotria spectabilis

Biologically active eremophilane-type sesquiterpenes from Camarops sp., an endophytic fungus isolated from Alibertia macrophylla.

scientific article published on 4 March 2014

Biomimetic synthesis of xuxuarines Ealpha and Ebeta: structure revision of Rzedowskia bistriterpenoids

scientific article published on 6 November 2007

Biopiracy of natural products and good bioprospecting practice

scientific article published on 9 January 2016

Biopiracy versus One-World Medicine-From colonial relicts to global collaborative concepts

scientific article published on 11 June 2018

Biosynthesis of friedelane and quinonemethide triterpenoids is compartmentalized in Maytenus aquifolium and Salacia campestris

scientific article published on 01 December 2000

Biosynthetic origins of the isoprene units of gaudichaudianic acid in Piper gaudichaudianum (Piperaceae)

scientific article published on 14 June 2007

CNS-selective noncompetitive cholinesterase inhibitors derived from the natural piperidine alkaloid (-)-spectaline

scientific article

Cadinane sesquiterpenoids of Phomopsis cassiae, an endophytic fungus associated with Cassia spectabilis (Leguminosae)

scientific article published on 21 July 2006

Can Statistical Evaluation Tools for Chromatographic Method Development Assist in the Natural Products Workflow? A Case Study on Selected Species of the Plant Family Malpighiaceae

scientific article published on 16 November 2020

Casearin X exhibits cytotoxic effects in leukemia cells triggered by apoptosis.

scientific article published on December 2010

Casearin X, its degradation product and other clerodane diterpenes from leaves of Casearia sylvestris: evaluation of cytotoxicity against normal and tumor human cells.

scientific article

Chemical Space and Diversity of the NuBBE Database: A Chemoinformatic Characterization

scientific article published on 17 December 2018

Chemical composition and biological properties of Ipomoea procumbens

scientific article published in 2019

Chemical composition of the bark of Tetrapterys mucronata and identification of acetylcholinesterase inhibitory constituents

scientific article published on 12 February 2014

Chemical study of leaves of Chrysophyllum marginatum (Hook. & Arn.) Radlk (Sapotaceae)

Chemopreventive activity of compounds extracted from Casearia sylvestris (Salicaceae) Sw against DNA damage induced by particulate matter emitted by sugarcane burning near Araraquara, Brazil

article

Chrysobalanaceae: secondary metabolites, ethnopharmacology and pharmacological potential

scholarly article by Fausto Carnevale Neto et al published 12 December 2012 in Phytochemistry Reviews

Circadian rhythm of anti-fungal prenylated chromene in leaves of Piper aduncum.

scientific article published in July 2005

Computational Applications in Secondary Metabolite Discovery (CAiSMD): an online workshop

scientific article

Computational methods for NMR and MS for structure elucidation I: software for basic NMR

scientific article published on 8 May 2019

Constituintes químicos das flores de Pterogyne nitens (Caesalpinioideae)

scientific article published on 19 June 2008

Constituintes químicos de Arrabidaea samydoides (Bignoniaceae)

Correction to Mass Spectral Similarity Networking and Gas-Phase Fragmentation Reactions in the Structural Analysis of Flavonoid Glycoconjugates

scientific article published on 31 October 2019

Corrigendum to "The 2',4'-dihydroxychalcone could be explored to develop new inhibitors against the glycerol-3-phosphate dehydrogenase from Leishmania species" [Bioorg. Med. Chem. Lett. 25 (2015) 3564-3568].

scientific article

Counteracting effects on free radicals and histological alterations induced by a fraction with casearins

scientific article published on 15 September 2015

Crotalaria spectabilis as a source of pyrrolizidine alkaloids and phenolic compounds: HPLC-MS/MS dereplication and monocrotaline quantification of seed and leaf extracts

scientific article published on 19 May 2020

Cyclo-(TRP-PHE) diketopiperazines from the endophytic fungus Aspergillus versicolor isolated from Piper aduncum

Cyclotides from Brazilian <i>Palicourea sessilis</i> and Their Effects on Human Lymphocytes

scientific article published on 04 January 2021

Cytotoxic Cyclotides from Anchietea pyrifolia, a South American Plant Species

Cytotoxic clerodane diterpenes from Casearia rupestris.

scientific article published on 7 March 2011

Cytotoxic clerodane diterpenoids from Casearia obliqua.

scientific article published in October 2009

Cytotoxic guanidine alkaloids from Pterogyne nitens.

scientific article published in March 2009

Cytotoxic lignans from the stems of Styrax camporum (Styracaceae).

scientific article published on June 2005

Dereplication by HPLC-DAD-ESI-MS/MS and Screening for Biological Activities of Byrsonima Species (Malpighiaceae).

scientific article

Derivado cinamoílico com atividade no reparo de DNA e outras substâncias de Cinnamomum australe (Lauraceae)

Determinação por RMN das configurações relativas e conformações de alcalóides oxindólicos isolados de Uncaria guianensis

scientific article published on 26 April 2005

Development of a natural products database from the biodiversity of Brazil.

scientific article

Discovery of a Beetroot Protease Inhibitor to Identify and Classify Plant-Derived Cystine Knot Peptides

scientific article published on 29 October 2020

Ecology. Biodiversity conservation research, training, and policy in São Paulo

scientific article

Editorial: Brasil, uma potência emergida

Effects of erythrinian alkaloids isolated from Erythrina mulungu (Papilionaceae) in mice submitted to animal models of anxiety

scientific article

Erythrina mulungu alkaloids are potent inhibitors of neuronal nicotinic receptor currents in mammalian cells

scientific article

Ethanolic extract of Casearia sylvestris and its clerodane diterpen (caseargrewiin F) protect against DNA damage at low concentrations and cause DNA damage at high concentrations in mice's blood cells

scientific article published on 7 September 2009

Fast Screening for Antioxidant Properties of Flavonoids from Pterogyne nitens Using Electrochemical Methods

scientific article published on 01 May 2012

Flavonols from Pterogyne nitens and their evaluation as myeloperoxidase inhibitors

scientific article published on 7 April 2008

Free radical scavenging activity of Kielmeyera variabilis (Clusiaceae).

scientific article

Further sesquiterpene pyridine alkaloids from Maytenus aquifolium

GC–MS analyses reveal chemical differences in the leaves of Manihot esculenta Crantz genotypes with different anti-herbivore effects

scientific article published in 2021

Geranylation of benzoic acid derivatives by enzymatic extracts from Piper crassinervium (Piperaceae).

scientific article published on 24 February 2010

Gordon M. Cragg, D.Phil., D.Sc. (h.c.): A Man for All Natural Products

scientific article published on 01 February 2012

HPLC-DAD method for metabolic fingerprinting of the phenotyping of sugarcane genotypes

Hepatitis C virus in vitro replication is efficiently inhibited by acridone Fac4.

scientific article

Human ABCB1 confers cells resistance to cytotoxic guanidine alkaloids from Pterogyne nitens.

scientific article

Improvement of bioactive metabolite production in microbial cultures-A systems approach by OSMAC and deconvolution-based 1 HNMR quantification

scientific article published on 30 May 2019

Improvement of pro-oxidant capacity of protocatechuic acid by esterification

scientific article

In Vitro Antibacterial Activity of Prenylated Guanidine Alkaloids from Pterogyne nitens and Synthetic Analogues

In Vitro Metabolism of Artepillin C by Rat and Human Liver Microsomes.

scientific article published on 10 January 2017

In vitro activity of compounds isolated from Piper crassinervium against Trypanosoma cruzi

scientific article

In vitro evaluation of the schistosomicidal effect of the extracts, fractions and major 3-hydroxy-2,6-dialkyl-substituted piperidine alkaloids from the flowers of Senna spectabilis (Fabaceae)

scholarly article by Andreísa Teixeira de Castro published in September 2016

In vitro trypanocidal activity of phenolic derivatives from Peperomia obtusifolia.

scientific article published on 24 February 2009

Indole glucoalkaloids from Chimarrhis turbinata and their evaluation as antioxidant agents and acetylcholinesterase inhibitors

scientific article published in November 2004

Indole monoterpene alkaloids from Chimarrhis turbinata DC Prodr.: a contribution to the chemotaxonomic studies of the Rubiaceae family

scientific article published on 17 April 2008

Inhibition of Breast Cancer Cell Migration by Cyclotides Isolated from Pombalia calceolaria.

scientific article published on 14 May 2018

Investigation of DMSO-induced conformational transitions in human serum albumin using two-dimensional raman optical activity spectroscopy.

scientific article published on 5 July 2014

Iridoid and seco-iridoid glucosides from Chioccoca alba (Rubiaceae).

scientific article

Iridoid glucosides from Randia spinosa (Rubiaceae)

scientific article published on 01 June 2003

Isolation, leishmanicidal evaluation and molecular docking simulations of piperidine alkaloids from Senna spectabilis

scientific article published on 02 November 2018

Isoswertisin flavones and other constituents from Peperomia obtusifolia

scientific article published in January 2011

Jatrophidin I, a cyclic peptide from Brazilian Jatropha curcas L.: Isolation, characterization, conformational studies and biological activity

article

LC-MS/MS Quantitative Determination ofTetrapterys mucronataAlkaloids, a Plant Occasionally used in Ayahuasca Preparation

article

Lactone Derivatives Produced by a Phaeoacremonium sp., an Endophytic Fungus from Senna spectabilis.

scientific article published on 20 April 2017

Leishmanicidal activity of the crude extract, fractions and major piperidine alkaloids from the flowers of Senna spectabilis

scientific article published in November 2013

Limonoids showing selective toxicity to DNA repair-deficient yeast and other constituents of Trichilia emetica.

scientific article published in February 1998

Lipoperoxidation and cyclooxygenases 1 and 2 inhibitory compounds from Iryanthera juruensis

scientific article (publication date: 4 April 2007)

Mass Spectral Similarity Networking and Gas-Phase Fragmentation Reactions in the Structural Analysis of Flavonoid Glycoconjugates

scientific article published on 31 July 2019

Metabolic profile and safety of piperlongumine

scientific article published on 29 September 2016

Modelagem molecular aplicada ao desenvolvimento de moléculas com atividade antioxidante visando ao uso cosmético

article published in 2007

Molecular hybridization: a useful tool in the design of new drug prototypes

scientific article published on January 2007

Morphological and biochemical alterations activated by antitumor clerodane diterpenes

scientific article

Myeloperoxidase inhibitory and radical scavenging activities of flavones from Pterogyne nitens.

scientific article published in May 2008

NF-κB and Angiogenesis Inhibitors from the Aerial Parts of Chresta martii

scientific article published on 01 August 2018

Natural Products: Perspectives and Challenges for use of Brazilian Plant Species in the Bioeconomy

scientific article published on 08 August 2019

Natural chromenes and chromene derivatives as potential anti-trypanosomal agents

scientific article

Natural deep eutectic solvents and aqueous solutions as an alternative extraction media for propolis

scientific article published on 12 July 2019

Natural deep eutectic solvents as the major mobile phase components in high-performance liquid chromatography-searching for alternatives to organic solvents

scientific article published on 12 April 2018

Natural products from Brazilian biodiversity as a source of new models for medicinal chemistry

article

New anti-Alzheimer drugs from biodiversity: the role of the natural acetylcholinesterase inhibitors

scientific article published in October 2005

New antioxidant C-glucosylxanthones from the stems of Arrabidaea samydoides.

scientific article published in October 2003

Nitensidine A, a guanidine alkaloid from Pterogyne nitens, induces osteoclastic cell death

scientific article published on 27 July 2013

Nitensidine A, a guanidine alkaloid from Pterogyne nitens, is a novel substrate for human ABC transporter ABCB1.

scientific article published on 14 October 2013

Nitensidine B affects proteins of the glycolytic pathway and induces apoptosis in cervical carcinoma cells immortalized by HPV16

scientific article published on 04 June 2018

NuBBEDB: an updated database to uncover chemical and biological information from Brazilian biodiversity

scientific article published on 03 August 2017

Old Meets New: Mass Spectrometry-Based Untargeted Metabolomics Reveals Unusual Larvicidal Nitropropanoyl Glycosides from the Leaves of Heteropterys umbellata

scientific article published in 2023

One stain-many compounds (OSMAC) method for production of phenolic compounds using Camarops sp., an endophytic fungus from Alibertia macrophylla (Rubiaceae)

Os produtos naturais e a química medicinal moderna

Phenylpropanoid glucosides from leaves of Coussarea hydrangeifolia (Rubiaceae).

scientific article published in August 2005

Phytochemical analysis of the methanolic leaves extract of Niedenzuella multiglandulosa (Malpighiaceae), a plant species toxic to cattle in Brazil

scientific article published on 19 March 2020

Pinpointing disulfide connectivities in cysteine-rich proteins

scientific article published on 16 May 2017

Piperamides and their derivatives as potential anti-trypanosomal agents

Piperlongumine and some of its analogs inhibit selectively the human immunoproteasome over the constitutive proteasome

scientific article published on 17 January 2018

Plant derived alkaloid (−)-cassine induces anti-inflammatory and anti-hyperalgesics effects in both acute and chronic inflammatory and neuropathic pain models

article

Preliminary in vitro and ex vivo evaluation of afzelin, kaempferitrin and pterogynoside action over free radicals and reactive oxygen species

scientific article published on 15 October 2014

Protease-inhibiting, molecular modeling and antimicrobial activities of extracts and constituents from Helichrysum foetidum and Helichrysum mechowianum (compositae)

scientific article

Pyridine alkaloids from Senna multijuga as acetylcholinesterase inhibitors

scientific article published on 03 February 2012

Pyridinic analog of the natural product (-)-spectaline as potential adjuvant for the treatment of central nervous system disorders

scientific article published on 9 March 2015

Quantitative determination for cytotoxic Friedo-nor-oleanane derivatives from five morphological types of Maytenus ilicifolia (Celastraceae) by reverse-phase high-performance liquid chromatography.

scientific article published in March 2002

Quantitative determination of anti-fungal and insecticide amides in adult plants, plantlets and callus from Piper tuberculatum by reverse-phase high-performance liquid chromatography.

scientific article published in September 2003

Reaction of the Phytochemistry Community to Green Chemistry: Insights Obtained Since 1990

scientific article published in 2023

Recent advances in the use of vibrational chiroptical spectroscopic methods for stereochemical characterization of natural products.

scientific article published on 03 July 2015

Redox-active biflavonoids from Garcinia brasiliensis as inhibitors of neutrophil oxidative burst and human erythrocyte membrane damage.

scientific article published on 27 August 2015

Resolution and absolute configuration assignment of a natural racemic chromane from Peperomia obtusifolia (Piperaceae).

scientific article published in October 2009

Saponinas antifúngicas de Swartzia langsdorffii

scientific article published on 19 June 2008

Saponinas triterpênicas de Tocoyena brasiliensis Mart. (Rubiaceae)

scientific article published on 09 January 2006

Screening of Brazilian plants for antimicrobial and dnadamaging activities: I. Atlantic rain forest . Ecological station juréia-itatins

article

Search for antifungal and anticancer compounds from native plant species of Cerrado and Atlantic Forest

scientific article published on 01 January 1999

Selective DMSO-induced conformational changes in proteins from Raman optical activity.

scientific article

Special Issue in Honor of Professor David G. I. Kingston

scientific article published on 01 March 2009

Structure Elucidation and Absolute Stereochemistry of Isomeric Monoterpene Chromane Esters

scientific article published on 14 March 2011

Structure and Absolute Configuration of Diterpenoids from Hymenaea stigonocarpa

scientific article

Suppression of TNF-α induced NFκB activity by gallic acid and its semi-synthetic esters: possible role in cancer chemoprevention

scientific article published on November 2010

Susceptibility of Apis mellifera (Hymenoptera: Apidae) to pellitorine, an amide isolated from Piper tuberculatum (Piperaceae)

scholarly article by Jos� Ednilson Miranda et al published July 2003 in Apidologie

Synergistic effect of pedalitin and amphotericin B against Cryptococcus neoformans by in vitro and in vivo evaluation.

scientific article published on 29 September 2016

Synthesis and evaluation of novel prenylated chalcone derivatives as anti-leishmanial and anti-trypanosomal compounds

scientific article published on 30 May 2015

Synthesis and evaluation of the thermal behavior of flavonoids

article published in 2016

Synthesis, Racemic X-ray Crystallographic, and Permeability Studies of Bioactive Orbitides from Jatropha Species

article

Synthetic Analogue of the Natural Product Piperlongumine as a Potent Inhibitor of Breast Cancer Cell Line Migration

The 2',4'-dihydroxychalcone could be explored to develop new inhibitors against the glycerol-3-phosphate dehydrogenase from Leishmania species

scientific article

The Absolute Configuration of 1-(3‘,4‘-Dihydroxycinnamoyl)cyclopentane-2,3-diol from the Amazonian TreeChimarrhisturbinata

scientific article published in July 2006

The Challenge of Including Chemodiversity, and the Potential Economic Use of New Natural Compounds and Processes, in the BIOTA/FAPESP Program

The Potential of Biologically Active Brazilian Plant Species as a Strategy to Search for Molecular Models for Mosquito Control

scientific article published on 21 December 2020

The use of standard methodology for determination of antifungal activity of natural products against medical yeasts Candida sp and Cryptococcus sp

article by Liliana Scorzoni et al published September 2007 in Brazilian Journal of Microbiology

Toxicity of extracts and isobutyl amides from Piper tuberculatum: potent compounds with potential for the control of the velvetbean caterpillar, Anticarsia gemmatalis

scientific article published on April 2007

Triterpenos de Styrax camporum (styracaceae)

Trypanocidal tetrahydrofuran lignans from Peperomia blanda.

scientific article published on 20 September 2007

Turbinatine, a potential key intermediate in the biosynthesis of corynanthean-type indole alkaloids

scientific article published in July 2003

Update: Biological and Chemical Aspects of Senna spectabilis

Using natural deep eutectic solvents for the extraction of metabolites in Byrsonima intermedia leaves

scientific article published on 30 November 2018

Validated HPLC method for the standardization of Phyllanthus niruri (herb and commercial extracts) using corilagin as a phytochemical marker

scientific article

Validated high-performance liquid chromatographic method for the standardisation of Ptychopetalum olacoides Benth., Olacaceae, commercial extracts

Virtual screening of antibacterial compounds by similarity search of Enoyl-ACP reductase (FabI) inhibitors

scientific article published on 15 November 2019

Vochysiaceae: secondary metabolites, ethnopharmacology and pharmacological potential

scholarly article by Fausto Carnevale Neto et al published 8 June 2011 in Phytochemistry Reviews

Xylarenones C-E from an endophytic fungus isolated from Alibertia macrophylla.

scientific article published on 21 April 2011

seco-Iridoids from Calycophyllum spruceanum (Rubiaceae).

seco-iridoids from Calycophyllum spruceanum (Rubiaceae).

scientific article published in September 2003