Ultrastructure of the labellar epidermis in selected Maxillaria species (Orchidaceae)
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چکیده
منابع مشابه
Lipoidal labellar secretions in Maxillaria ruiz & pav. (Orchidaceae).
The labella of Maxillaria acuminata Lindl., M. cerifera Barb. Rodr. and M. notylioglossa Rchb.f., all members of the M. acuminata alliance, produce a viscid wax-like secretion. Histochemical analysis revealed that the chemical composition of the secretion is similar in all three species, consisting largely of lipid and protein. Light microscopy and low-vacuum scanning electron microscopy were u...
متن کاملComparative labellar micromorphology of Zygopetalinae (Orchidaceae).
BACKGROUND AND AIMS Molecular evidence indicates that the Neotropical sub-tribe Zygopetalinae is sister to Maxillariinae. Most members of the latter sub-tribe have deceit pollination strategies, but some species produce rewards such as nectar, pseudopollen, resin and wax, and are pollinated by a range of pollinators that include stingless bees (Meliponini), wasps and hummingbirds. By contrast, ...
متن کاملLabellar micromorphology of Bifrenariinae Dressler (Orchidaceae).
BACKGROUND AND AIMS The two closely related subtribes Bifrenariinae Dressler and Maxillariinae Benth. are easily distinguished on morphological grounds. Recently, however, molecular techniques have supported the inclusion of Bifrenariinae within a more broadly defined Maxillariinae. The present paper describes the diverse labellar micromorphology found amongst representatives of Bifrenariinae (...
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BACKGROUND AND AIMS To date, the structure of the nectary spur of Aeridinae has not been studied in detail, and data relating to the nectaries of ornithophilous orchids remain scarce. The present paper compares the structural organization of the floral nectary in a range of Aeridinae species, including both entomophilous and ornithophilous taxa. METHODS Nectary spurs of Ascocentrum ampullaceu...
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ژورنال
عنوان ژورنال: Botanical Journal of the Linnean Society
سال: 1998
ISSN: 0024-4074
DOI: 10.1111/j.1095-8339.1998.tb01387.x