Results 91 to 100 of about 27,918 (288)

Phylogeny and Taxonomy of the Angiosperms

open access: yesBotanical Gazette, 1897
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +3 more sources

Begonia quadricornualata sp. nov. (Begoniaceae) from India

open access: yesNordic Journal of Botany, EarlyView.
A new species of Begonia L. (Begoniaceae) belonging to sect. Platycentrum is described from the Papum Pare District of Arunachal Pradesh, India. This new species is distinguished by its dense, long, red to brown hispid hairs on the adaxial leaf surface of female plants, caducous stipules and bracts, and solitary‐flowered female inflorescence ...
Rohan Maity   +2 more
wiley   +1 more source

Taxonomic revision of the genus Tzveleviochloa (Poaceae, Aveninae) in India

open access: yesNordic Journal of Botany, EarlyView.
The taxonomy of Tzveleviochloa in India is revised based on morphological evidence, comprehensive observations of herbarium specimens and field records, and several botanical explorations in the study area. The accepted diversity is increased from two to five species, including two recently described species. The genus is distributed in the Western and
Dileshwar Prasad   +5 more
wiley   +1 more source

Diversification of myco-heterotrophic angiosperms: evidence from Burmanniaceae. [PDF]

open access: yes, 2008
Background - Myco-heterotrophy evolved independently several times during angiosperm evolution. Although many species of myco-heterotrophic plants are highly endemic and long-distance dispersal seems unlikely, some genera are widely dispersed and have ...
Merckx, Vincent   +23 more
core   +1 more source

Primula himalayana sp. nov., a new species from eastern Himalaya, India

open access: yesNordic Journal of Botany, EarlyView.
Primula himalayana sp. nov., a new species of Primulaceae, is described and illustrated from Tawang, Lutrem, 4238 m a.s.l., Arunachal Pradesh, India. It grows under Juniperus and Berberis scrub forest in an alpine meadow. The new species belong in Primula section Cordifoliae and is resembling P.
Bipankar Hajong   +2 more
wiley   +1 more source

The genus Grewia (Malvaceae: Grewioideae) in Andaman & Nicobar Islands, India with a conservation note on the endemic G. indandamanica

open access: yesJournal of Threatened Taxa, 2019
The genus Grewia in Andaman & Nicobar Islands is reviewed with its identification key, descriptions, distribution and photographs.  This article provides correct taxonomic identity of G. laevigata and G.
K.C. Kishor, Mayur D. Nandikar
doaj   +1 more source

Evolutionary voyage of angiosperm vessel structure-function and its significance for early angiosperm success [PDF]

open access: yes, 2012
A hypothesized advantage of the building block of the angiosperm vascular network, the vessel, is often cited as a critical innovation that elevated the competitive abilities of early angiosperms above nonangiosperms during the Cretaceous.
Wilson, Jonathan P.   +2 more
core   +1 more source

Fruit‐quality tradeoffs generate asymmetry in plant reliance on mutualistic frugivores

open access: yesOikos, EarlyView.
Seed dispersal is a fundamental ecological process influencing the evolution of plant life‐history strategies. In fleshy‐fruited plants dispersed by mutualistic frugivores, variation in fruit traits among closely related species may shape the temporal and spatial dynamics of dispersal events critical to population success.
João Vitor S. Messeder, Tomás A. Carlo
wiley   +1 more source

Early Cretaceous angiosperm pollen from a low-latitude succession (Araripe Basin, NE Brazil) [PDF]

open access: yes, 2010
The radiation of flowering plants during the Cretaceous represents a marked evolutionary turnover from gymnosperm- to angiosperm-dominated ecosystems within a time span of about 30 Ma.
Hochuli, P A, Heimhofer, U
core   +1 more source

Age ratio in groups of a social ungulate affects epizoochorous dispersal and diaspore exchanges

open access: yesOikos, EarlyView.
Animal‐mediated seed dispersal is a key process in plant population dynamics, species distribution and ecosystem functioning. As long‐distance dispersal agents, ungulates help to maintain native plant populations facing abiotic changes in their habitat and habitat fragmentation or habitat loss.
Antoine Roux   +6 more
wiley   +1 more source

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