Results 51 to 60 of about 1,627 (170)

Plastid and nuclear phylogenomics of Cyphostemma (Vitaceae) provide new insights into genome size evolution across sub‐Saharan Africa

open access: yesJournal of Integrative Plant Biology, Volume 68, Issue 5, Page 1399-1420, May 2026.
Some African Cyphostemma species evolved much larger genomes as they adapted to dry, rocky habitats. These expansions are linked to succulent traits and specialization on nutrient‐rich limestone outcrops. The findings show how climate‐driven aridification shaped plant evolution and highlight broader genome‐environment patterns across flowering plants ...
Rindra M. Ranaivoson   +18 more
wiley   +1 more source

Psychotria polita Valeton

open access: yes, 2017
86. Psychotria polita Valeton in Bot. Jahrb. Syst. 61: 95. 1927. Lectotypus (designated by SOHMER, 1988: 324): PAPUA NEWGUINEA: NE New Guinea, Etappenberg, 850 m, 16.X.1912, Ledermann 9311 (L [L0001229] image seen). Notes. – This species was described from New Guinea, and this name was lectotypified by SOHMER (1988) even though he considered its ...
Taylor, Charlotte M.   +4 more
openaire   +2 more sources

Vegetational Characteristics in Natural Habitat and Population Structure of the Endangered Plant Tigridiopalma Genus

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
First comprehensive ecological assessment of the endangered genus Tigridiopalma, covering two China endemic Plant Species with Extremely Small Populations (PSESP), T. magnifica and the newly described T. exalata. T. magnifica exhibits broader habitat diversity and understory resilience, while T.
Peishan Zou   +7 more
wiley   +1 more source

Fenologia de Psychotria nuda e P. Brasiliensis (Rubiaceae) em uma área de Floresta Atlântica no sudeste do Brasil Phenology of Psychotria nuda and P. brasiliensis (Rubiaceae) in an area of the Atlantic Forest, Southeast of Brazil

open access: yesActa Botânica Brasílica, 2000
Este estudo descreve os padrões fenológicos de duas espécies simpátricas, Psychotria nuda e P. brasiliensis, comparando-as quanto à fenologia e à distribuição espacial e relacionando os eventos fenológicos a fatores abióticos (pluviosidade, temperatura e
Elisângela Medeiros de Almeida   +1 more
doaj   +1 more source

New species and combinations in Mesoamerican Psychotria subgenus Psychotria (Rubiaceae)

open access: yesPhytologia., 1988
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

IUCN Red List Regional Assessment of the Flora of Niue Utilising Indigenous Local Knowledge and Botanical Information

open access: yesJournal of the Royal Society of New Zealand, Volume 56, Issue 2, April 2026.
A regional assessment of the indigenous vascular plants of Niue is presented using the IUCN Red List criteria. The assessment was undertaken during a community workshop that drew on the indigenous local knowledge and scientific information. The assessment comprised 197 named taxa and 8 indeterminate entities, with 4 (2.0%) taxa assessed as Extinct and ...
Peter B. Heenan   +2 more
wiley   +1 more source

Changing Rainfall Drives Locally Asynchronous Reproduction of Tropical Birds via Modular Trophic Pathways

open access: yesGlobal Change Biology, Volume 32, Issue 3, March 2026.
In low‐latitude mountains, we found insectivorous bird communities switched from breeding before to after the dry season at a threshold in dry‐season insects. Localized breeding season reversal of insectivores across wet‐to‐dry gradients magnified short‐term effects of drought and contrasted with the seasonal stability of nectar‐fruit consumers.
Felicity L. Newell   +2 more
wiley   +1 more source

Rubiaceae no Município de Camanducaia, Serra da Mantiqueira, Minas Gerais: sinópse e chave interativa

open access: yesRodriguésia
Resumo Este estudo teve como objetivos realizar o levantamento florístico da família no município de Camanducaia, Serra da Mantiqueira, extremo sul de Minas Gerais, onde extensos remanescentes de Mata Atlântica são encontrados, e elaborar uma Chave ...
João Afonso Martins do Carmo   +1 more
doaj   +1 more source

Estudo ecogeográfico da poaia [Psychotria ipecacuanha (Brot.) Stokes] Ecogeographic study of "poaia" Psychotria ipecacuanha (Brot.) Stokes

open access: yesRevista Brasileira de Plantas Medicinais, 2009
Este estudo foi conduzido com 13 populações amostradas nos estados RJ, MG, ES e BA para a coleta de dados ecogeográficos da poaia (Psychotria ipecacuanha).
E.R. Martins   +3 more
doaj   +1 more source

Psychotria papillata Merr.

open access: yes, 2019
Psychotria papillata (Merr.) Merr. Materials examined. Table 2. Shrub about 1–2 m high, very pubescent all throughout. Leaves elliptic, 8–10 × 2–4 cm, chartaceous, pubescent. Infructescences terminal, sessile, pubescent. Flowers not seen. Fruits black, obovoid, 7–8 mm, pubescent.
Ordas, Jorge Anton D.   +4 more
openaire   +1 more source

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