This is a report of a morphological study of the pollinaria and pollinia of 91 species of orchids native to the region of Soconusco in southeast Mexico. A Scanning Electron Microscope (SEM) was used to obtain details of forms and patterns. The 91 species are divided according to taxonomic groups into 4 sections for ease of management. The flowering dates for each species are presented, and the pollinaria and pollinia are characterized and compared using the following parameters: number of pollinia per pollinarium; size and shape of the individual pollinia; details of the caudicles (if present); size of stipe (if present); internal texture of the pollinia; size and form of the tetrads; and finally, the form, superficial exine layer and internal exine layer, of the surface tetrads. The data and images will be useful for taxonomic studies, for the identification of pollinaria carried by pollinating insects and birds, and for continuing research into the mechanisms of orchid pollination.
Selbyana, the scientific journal of the Marie Selby Botanical Gardens, is devoted to publishing original research on tropical plants, with an emphasis on epiphytes and their forest canopy habitats. The peer-reviewed journal includes articles on taxonomy, systematics, floristics, natural history, ecology, conservation biology, phytogeography, anatomy, cytology, morphology, and physiology.
The Marie Selby Botanical Gardens’ mission is to provide an oasis of inspiration and tranquility, while furthering the understanding and appreciation of plants, especially epiphytes. Its vision is to touch as many people as possible through our urban waterfront garden that is the world leader in conservation and display of epiphytes. Visitors and volunteers alike experience the Gardens' beauty, gaining a better understanding and greater appreciation of the natural world.
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