Results 21 to 30 of about 13,303 (257)

The Structural–Rhythmological Organization of Coelogyne (Orchidaceae Juss.) Inflorescences

open access: yesInternational Journal of Plant Biology, 2023
The morphostructure of inflorescences in the genus Coelogyne Lindl. was studied for the first time using a structural–rhythmological approach. Three species of Coelogyne were used to describe one-season, intercalary, and all-season inflorescences.
Galina Kolomeitseva   +2 more
doaj   +1 more source

Verhuellia is a segregate lineage in Piperaceae: more evidence from flower, fruit and pollen morphology, anatomy and development [PDF]

open access: yes, 2010
Background and Aims The perianthless Piperales, i.e. Saururaceae and Piperaceae, have simple reduced flowers strikingly different from the other families of the order (e.g. Aristolochiaceae).
Samain, Marie-Stéphanie   +7 more
core   +2 more sources

Studies in the Ericoideae (Ericaceae). VI. The generic relationship between Erica and in southern Africa,

open access: yesBothalia: African Biodiversity & Conservation, 1988
Problems in placing certain species satisfactorily in  Philippia or  Erica have led to an investigation of characters delimiting the genera mainly in southern African species.
E. G. H. Oliver
doaj   +1 more source

Natural history of four species of Platydracus Thomson (Coleoptera: Staphylinidae) in Heliconia bourgaeana Petersen (Zingiberales: Heliconiaceae) flower bracts [PDF]

open access: yes, 2012
The insect fauna within inflorescences of Heliconia bourgaeana Petersen (Zingiberales: Heliconiaceae) was evaluated in Parque Metlac, Fortín de las Flores, Veracruz, Mexico between May and October 1995.
Frank, J. Howard, Morón, Miguel Angel
core   +2 more sources

Interpreting Lemma and Palea Homologies: A Point of View from Rice Floral Mutants

open access: yesFrontiers in Plant Science, 2015
In contrast to eudicot flowers which typically exhibit sepals and petals at their periphery, the flowers of grasses are distinguished by the presence of characteristic outer organs.
Fabien eLombardo, Hitoshi eYoshida
doaj   +1 more source

The Arabidopsis JAGGED gene encodes a zinc finger protein that promotes leaf tissue development [PDF]

open access: yes, 2004
Important goals in understanding leaf development are to identify genes involved in pattern specification, and also genes that translate this information into cell types and tissue structure. Loss-of-function mutations at the JAGGED (JAG) locus result in
Heisler, Marcus G. B.   +3 more
core   +2 more sources

Elsholtzia zhongyangii (Lamiaceae), a new species from Sichuan, China [PDF]

open access: yesPhytoKeys, 2022
Elsholtzia zhongyangii (Lamiaceae), a new species from Sichuan Province, China, is described and illustrated. The new species is morphologically similar to E. feddei f. feddei, but it can be easily distinguished from E. feddei f.
Xin-Jie Jin   +8 more
doaj   +3 more sources

Journey of water in pine cones [PDF]

open access: yes, 2019
Pine cones fold their scales when it rains to prevent seeds from short-distance dispersal. Given that the scales of pine cones consist of nothing but dead cells, this folding motion is evidently related to structural changes.
Kim, H   +6 more
core   +1 more source

A new species of Monanthotaxis from Gabon with a unique inflorescence type for Annonaceae [PDF]

open access: yes, 2014
Monanthotaxis Baillon (1890: 878) currently consists of 56 species (Rainer & Chatrou 2006) confined to tropical Africa and Madagascar and is the second most species-rich genus of Annonaceae in Africa after Uvaria Linnaeus (1753: 536).
Chatrou, Lars   +2 more
core   +2 more sources

Use of timelapse photography to determine flower opening time and pattern in banana (Musa spp.) for efficient hand pollination

open access: yesScientific Reports, 2021
Sterility and low seed set in bananas is the main challenge to their conventional genetic improvement. The first step to seed set in a banana breeding program depends on pollination at the right time to ensure effective fertilization. This study aimed at
Allan Waniale   +9 more
doaj   +1 more source

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