The Pollination Biology of North American Orchids: Volume 1: by Charles L. Argue

By Charles L. Argue

Recent stories have published outstanding complexity and variety in orchid-pollinator relationships. those experiences include an unlimited literature presently scattered in several, usually vague, journals and books. The Pollination Biology of North American Orchids brings jointly, for the 1st time, a finished remedy of this knowledge for all local and brought North American orchids came across north of Mexico and Florida. It offers precise info on genetic compatibility, breeding platforms, pollinators, pollination mechanisms, fruiting good fortune, and restricting components for every species. Distribution, habitat, and floral morphology also are summarized. furthermore, specified line drawings emphasize orchid reproductive organs and their version to identified pollinators.

This, the 1st of 2 volumes, furnishes a short advent to the final morphology of the orchid flower and the terminology used to explain orchid breeding platforms and reproductive techniques. It treats the lady’s-slippers of genus Cypripedium, subfamily Cypripedioideae, and 9 genera of the subfamily Orchidoideae, together with the various rein orchids of genus Platanthera.

The Pollination Biology of North American Orchids could be of curiosity to either local and overseas audiences including:

  • Researchers and scholars during this box of research who're presently required to go looking during the scattered literature to procure the knowledge collected here.
  • Researchers and scholars in comparable fields with an curiosity within the co-evolution of vegetation and insects.
  • Conservation experts who have to comprehend either the main points of orchid copy and the id of basic pollinators so one can correctly deal with the land for both.
  • Orchid breeders who require exact and present info on orchid breeding structures.
  • General readers with an curiosity in orchid biology.

Charles Argue, Ph.D., is a plant biologist on the collage of Minnesota focusing on the research of pollen grains. His articles have seemed in different journals together with the American magazine of Botany, International magazine of Plant Sciences (formerly Botanical Gazette), Botany (formerly Canadian magazine of Botany), Grana, Pollen et Spores, North American local Orchid Journal, The local Orchid convention Journal, Fremontia, and as chapters in a couple of books.

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2) (Wright 19750LOWRIGHTETAL 1980; Barrett and Helenurm 1987). In addition, examination of bumblebees in the collection at Michigan State University disclosed the apparent presence of the pollen on several specimens of Bombus borealis Kirby (Stoutamire 1967). 2). 0) mm, respectively (Wright 1975). The relative sizes of the exit holes and the bees permitted the bees to escape, but with sufficient difficulty to insure contact between the thorax and the anther. 2 Insects collected bearing pollen of Cypripedium acaule Species Caste Locality Bombus borealis Kirby ?

Acaule have been observed to reverse direction after reaching the anther, causing self-pollination (Macior 1974; Wright 1975; Dieringer 1982; Davis 1986). Inbreeding depression appears to be absent: Gill (1996) observed no difference in seed germination (or protocorm growth) between seeds obtained from experimentally self-pollinated or distantly outcrossed flowers. Intrafloral self-pollination in the absence of a pollinator (autogamy) and asexual seed production (agamospermy) are absent (Newhouse in Davis 1986).

A period of dormancy would, of course, prevent autumn germination and winter freezing of tender seedlings in northern latitudes. The presence of dormancy in more southerly populations has yet to be examined. The introduced and abundant European skipper (Thymelicus lineola Ochsenheimer), a native skipper (Polites mystic Edwards), and other arthropods are often trapped in the pouch of this and other lady-slippers (Arthur 1962; Catling 1974; Barrows 1983; Vogt 1990). Vogt (1990) found them in about one third of the flowers at his study site in Vermont, and Catling (1974) found them in at least half of about one hundred flowers at several Ontario sites.

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