Results 201 to 210 of about 2,544 (218)
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ULTRASTRUCTURE OF EXINE‐LESS POLLEN: HELICONIA (HELICONIACEAE)
American Journal of Botany, 1978Pollen of Heliconia and many of its relatives in the Zingiberales is virtually devoid of a conspicuous, protective exine. The exine is relegated to a few spinules and a thin, electron‐dense layer (0.08 μm), whereas the intine can be up to 100 times as thick (8 μm) and structurally complex.
W. John Kress +2 more
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Flora - Morphology, Distribution, Functional Ecology of Plants, 2007
Abstract Anther development, microsporogenesis and microgametogenesis in several species of Heliconia were investigated as part of a complementary embryological study of the Heliconiaceae. All studied Heliconia species present bithecate and tetrasporangiate anthers with fertile pollen grains; only H.
Simao, Daniela Guimaraes +2 more
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Abstract Anther development, microsporogenesis and microgametogenesis in several species of Heliconia were investigated as part of a complementary embryological study of the Heliconiaceae. All studied Heliconia species present bithecate and tetrasporangiate anthers with fertile pollen grains; only H.
Simao, Daniela Guimaraes +2 more
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HELICONIA LUCIAE BARREIROS N.SP. (HELICONIACEAE)
1992(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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New Taxa of Heliconia (Heliconiaceae) from Ecuador
Brittonia, 1991Three new species (Heliconia fredberryana H. litana, andH. lutheri) and one new subspecies (H. obscura ssp.dichroma) from Ecuador are described, illustrated, and discussed.
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Honeyeater (Meliphagidae) pollination and the floral biology of PolynesianHeliconia (Heliconiaceae)
Plant Systematics and Evolution, 1999The primary pollinator of Polynesian heliconias,Heliconia laufao andH. paka, is the Wattled Honeyeater,Foulehaio carunculata. This report is the first documentation of pollination by honeyeaters in the genusHeliconia and the first record ofF. carunculata as a pollinator of a plant species.
Pedersen, Louise Buchholt +1 more
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Morphology and Phylogenetic Significance of Exine-less Pollen of Heliconia (Heliconiaceae)
Systematic Botany, 1983Pollen morphology of 27 species of Heliconia (19 species with pendent inflorescences; eight species with erect inflorescences) was examined using brightfield and scanning electron microscopy. Pollen of species with erect inflorescences has many character states in common with pollen of pendent species. Among the species with pendent inflorescences four
W. John Kress, Donald E. Stone
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Plant Biology, 2006
The developmental anatomy and morphology of the ovule and seed in several species of Heliconia were investigated as part of an embryological study of the Heliconiaceae and to provide a better understanding of their relationships with the other families of the Zingiberales.
Simao, D. G., Scatena, V. L., Bouman, F.
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The developmental anatomy and morphology of the ovule and seed in several species of Heliconia were investigated as part of an embryological study of the Heliconiaceae and to provide a better understanding of their relationships with the other families of the Zingiberales.
Simao, D. G., Scatena, V. L., Bouman, F.
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Colonization by Herbivores of Heliconia spp. Plants (Zingiberales: Heliconiaceae)
Biotropica, 1984The leaf-top herbivore guild of Heliconia spp. is a particularly good subject for the examination of host colonization because individuals may be monitored easily for extended periods of time. Studies of the guild on H. imbricata in Costa Rica and on H. latispatha in Ecuador reveal substantial variation in the rates of colonization among plants.
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Molecular characterization of ten Heliconia (Heliconiaceae) genotypes by means of RAPD markers
, 2020M. Malakar, P. Acharyya, S. Biswas
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