Results 91 to 100 of about 1,510 (202)

Reproductive Biology of Varronia curassavica Jacq. (Boraginaceae)

Anais da Academia Brasileira de Ciências, 2018
Varronia curassavica, a subshrubby medicinal species associated with restinga in the Atlantic Forest, has been exploited by local people and the pharmaceutical industry.
MARCIA P. HOELTGEBAUM, TIAGO MONTAGNA, ANA PAULA LANDO, CATARINA PUTTKAMMER, AFONSO INÁCIO ORTH, MIGUEL P. GUERRA, MAURÍCIO S. DOS REIS   +6 more
doaj   +1 more source

Influence of sex‐organ positions on pollen transfer and self‐interference in plants with stylar polymorphisms: An experimental approach using three‐dimensional printed flowers

Functional Ecology, Volume 39, Issue 9, Page 2526-2538, September 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Heterostylous plants are defined by the reciprocal positioning of stigmas and anthers in floral morphs—a trait proposed by Darwin to enhance the efficiency of disassortative (intermorph) pollen transfer.
Victoria Ferrero, Luis Navarro, James D. Thomson, Spencer C. H. Barrett   +3 more
wiley   +1 more source

Narcissus (Amaryllidaceae), la evolución de los polimorfismos florales y la conservación más allá de las "listas rojas" Narcissus (Amaryllidaceae), the evolution of flower polymorphisms and conservation beyond the "red lists"

Revista Chilena de Historia Natural, 2002
Se realiza una revisión del significado del género Narcissus (Amaryllidaceae) para explicar los distintos modelos de evolución de la heterostilia, aportándose datos recientes que confirman el buen ajuste que muestra este género a los pasos propuestos en ...
Juan Arroyo
doaj  

Pollen morphology of Waltheria L. (Malvaceae-Byttnerioideae) from Bahia, Brazil

Acta Botânica Brasílica, 2017
Waltheria encompasses about 60 species distributed in Brazil and Mexico. To improve the palynology of the genus, we analyzed 14 species occurring in the Brazilian State of Bahia.
Cristiano Eduardo Amaral Silveira Júnior, Luciene Cristina Lima e Lima, Marileide Dias Saba   +2 more
doaj   +1 more source

Flowering biology of Pulmonaria obscura (Boraginaceae) in Moscow region

Известия высших учебных заведений. Поволжский регион: Естественные науки, 2023
Background. Pulmonaria obscura Dumort. (Suffolk lungwort) is a perennial herbaceous short-rhizome polycarpic plant. Mentions of flowering and pollination characteristics in P. obscura are scarcely found in the literature.
V.N. Godin
doaj   +1 more source

Genomic studies in Linum shed light on the evolution of the distyly supergene and the molecular basis of convergent floral evolution

New Phytologist, Volume 247, Issue 6, Page 2964-2981, September 2025.
Summary Distyly, an example of convergent evolution, is governed by a supergene, the S‐locus, in several species. Recent studies highlight similar genomic architectures of independently evolved S‐loci, but its mode of origin and whether similar regulatory pathways underlie the convergent evolution of distyly remains unclear.
Panagiotis‐Ioannis Zervakis, Zoé Postel, Aleksandra Losvik, Marco Fracassetti, Lucile Solér, Estelle Proux‐Wéra, Ignas Bunikis, Allison Churcher, Tanja Slotte   +8 more
wiley   +1 more source

B‐class gene GLOBOSA – a facilitator for enriched species diversity of Salvia in the New World?

Plant Biology, Volume 27, Issue 3, Page 333-346, April 2025.
Analysis of B‐class genes of flowering in Salvia revealed a duplication of DEFICIENS in the whole genus and a geographically restricted duplication of GLOBOSA in the New World, correlating with enhanced species richness in the Americas. Abstract The genus Salvia, comprising around 1000 species, half of which are found in the New World, belongs to the ...
S. Wetters, P. Nick
wiley   +1 more source

HETEROSTYLY IN MITCHELLA REPENS (RUBIACEAE)

, 1979
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Keegan, Christine R, Voss, Robert H, Bawa, Kamaljit S.   +2 more
openaire   +2 more sources

Fenologia, morfologia floral e visitantes de Psychotria brachypoda (Müll. Arg.) Britton (Rubiaceae) em uma área de Floresta Atlântica, Sudeste do Brasil Phenology, floral morphology and visitors of Psychotria brachypoda (Müll. Arg.) Britton (Rubiaceae) in Atlantic Forest, southeastern Brazil

Acta Botânica Brasílica, 2008
No presente estudo foram descritos o padrão fenológico, biologia floral, visitantes florais mais freqüentes e taxa de formação de frutos de Psychotria brachypoda, em uma área de Floresta Atlântica.
Lorena Coutinho Nery Fonseca, Elisângela Medeiros de Almeida, Maria Alice Santos Alves   +2 more
doaj   +1 more source

THE GENETICAL ARCHITECTURE OF HETEROSTYLY IN PRIMULA SINENSIS [PDF]

Evolution, 1950
Flowering plants show a variety of mechanisms which encourage, or even ensure, the setting of seed by crossrather than by self-pollination. Heterostyly is such an outbreeding device and it is widespread in its occurrence. Heterostyled species may be classified into two groups, the distylic and tristylic, the former being the commoner type.
openaire   +1 more source