Sistema reprodutivo de Oxypetalum appendiculatum Mart. e Oxypetalum banksii Roem. & Schult. subsp. banksii (Asclepiadaceae)
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چکیده
منابع مشابه
Removal and insertion of pollinia in flowers of Oxypetalum (Asclepiadaceae) in southeastern Brazil.
Pollinarium removal and pollinium insertion of seven Oxypetalum species (O. alpinum var. alpinum, O. appendiculatum, O. banksii subsp. banksii, O. jacobinae, O. mexiae, O. pachyglossum and O. subriparium) were recorded in Viçosa. Minas Gerais. They presented a tendency of one or two pollinarium removals and one pollinium insertion (single insertion), except O. appendiculatum. In this species, m...
متن کاملPollinators of Oxypetalum (Asclepiadaceae) in southeastern Brazil.
Floral visitors of seven species of Oxypetalum were registered in Viçosa, State of Minas Gerais. O. appendiculatum, O. banksii subsp, banksii, O. alpinumn var. alpinum and O. pachyglossum are pollinated by wasps, being Polybia ignobilis (Vespidae) a pollinator of these four species. It seems that P ignobilis promotes interspecific pollinations mainly between O. alpinum var. alpinum and O. pachy...
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Red-tailed black-cockatoos are specialist feeders, relying almost entirely on the seeds of brown and desert stringybark (Eucalyptus baxteri and E. arenacea) and buloke trees (Allocasuarina luehmannii). The cockatoos feed almost entirely on the stringybark species that has fruited most recently and there are marked periods of food shortage between new crops. For a period of 2-3 months in late su...
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Cordia rothii Roem. & Schult. bark has reputation of being effective in heart ailments in Saurashtra region of Gujarat. The investigation was undertaken to study the microscopy, chemical constituents and pharmacological actions of Cordia rothii Roem. & Schult. bark. Phytochemical analysis of different bark extracts revealed the presence of alkaloids, glycoalkaloids, coumarins and inorganic salt...
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Usage of aesthetically appealing native plants in urban landscape projects can support its conservation by contributing to genetic diversity and their sustainability in that region. Lycium shawii is a thorny perennial shrub with an ability to tolerate extreme climatic conditions prevalent in Kuwait. In this germination study, effects of dry heat (50°C) and/or various concentrations (500, 750 an...
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ژورنال
عنوان ژورنال: Acta Botanica Brasilica
سال: 1999
ISSN: 0102-3306
DOI: 10.1590/s0102-33061999000300002