Results 191 to 200 of about 298,868 (346)

FOSSIL PINE POLLEN SIZE‐FREQUENCIES IN HEART LAKE SEDIMENTS, OAKLAND COUNTY, MICHIGAN [PDF]

, 1951
Stanley A. Cain, Louise G. Cain, George Thomson   +2 more
openalex   +1 more source

Description of pistillate flowers and conservation status of two species of Mollinedia (Monimiaceae, Laurales) from the Brazilian Atlantic forest

Nordic Journal of Botany, EarlyView.
Mollinedia is one of the richest genera of Monimiaceae, with approximately 60 species. In Brazil, 46 species of the genus occur, most of them in the Atlantic Forest. Mollinedia dolichotricha and Mollinedia ruschii are species endemic to the Atlantic Forest and described in the last decade.
Danilo Alvarenga Zavatin, Letícia Guimarães Barbosa, Patrícia Da Rosa, Joelcio Freitas, Elton John De Lírio   +4 more
wiley   +1 more source

Delayed Self-Pollination as the Primary Reproductive Strategy in <i>Cypripedium shanxiense</i> S. C. Chen: Observations From Beijing Songshan National Nature Reserve. [PDF]

Plant Environ Interact
Wang Q, An J, Zhu M, Zhang X, Wang N, Zheng B.   +5 more
europepmc   +1 more source

Defining pollen exposure times for clinical trials of allergen immunotherapy for pollen‐induced rhinoconjunctivitis – an EAACI position paper

Allergy. European Journal of Allergy and Clinical Immunology, 2017
O. Pfaar, K. Bastl, U. Berger, J. Buters, M. Calderon, B. Clot, U. Darsow, P. Demoly, S. Durham, C. Galán, R. Gehrig, R. Gerth van Wijk, L. Jacobsen, L. Klimek, M. Sofiev, M. Thibaudon, K. Bergmann   +16 more
semanticscholar   +1 more source

Reproductive systems of Hohenbergia Schult. & Schult.f. (Bromelioideae: Bromeliaceae) endemic to the Atlantic forest

Nordic Journal of Botany, EarlyView.
Many species of the Bromeliaceae are under threat due to the fragmentation and anthropogenic pressure affecting the Atlantic Forest highlight the need to conservation efforts. The genus Hohenbergia deserves special attention in this context, as the Hohenbergia stellata complex includes endemic species that rely on diverse reproductive strategies, which
Tiago Abreu da Silva, Brayan Paiva Cavalcante, Adelly Cardoso de Araujo Fagundes, Gleice Quelle Silva dos Santos Nascimento, Lidyanne Yuriko Saleme Aona, Fernanda Vidigal Duarte Souza, Maria Angélica Pereira de Carvalho Costa, Everton Hilo de Souza   +7 more
wiley   +1 more source

Gene expression and pollen performance indicate altered postmating selection between Solanum species with different mating systems. [PDF]

G3 (Bethesda)
Biewer-Heisler TJ, Gibson MJS, Sornay E, Moyle LC.   +3 more
europepmc   +1 more source

On the Artificial Germination of Pollen in Rice Plants. : IV. Temperature limits of pollen germination in rice varieties.

, 1956
Nakae ENOMOTO, Ichiro Yamada, Kazuo Hozumi   +2 more
openalex   +2 more sources

STUDIES ON SELF-STERILITY II. POLLEN-TUBE GROWTH [PDF]

, 1918
E. M. East, J B Park
openalex   +1 more source

Passiflora quimiana, a new species from the Cordillera del Cóndor: Ecuador's far‐flung frontier

Nordic Journal of Botany, EarlyView.
A new species of Passiflora subgenus Decaloba, supersect. Decaloba, from the Cordillera del Cóndor in Ecuador, is described and illustrated, with its morphological similarities to other species being discussed in this paper. Passiflora quimiana exhibits the unique combination of narrow ovate to long‐oval leaves and small foliaceous bracts ...
J. R. Kuethe, Henry Garzón‐Suárez, Marco M. Jiménez, Danilo A. Zavatin, Dave Randall Goucher   +4 more
wiley   +1 more source

S-RNase Internalisation and Vacuolar Targeting via Clathrin-Dependent Endocytosis Mediate Interspecific Pollen Rejection in Nicotiana. [PDF]

Physiol Plant
Rios-Carrasco S, García-Caffarel E, Cruz-Zamora Y, Jiménez-Díaz E, Cruz-García F.   +4 more
europepmc   +1 more source