By Arthur W. Holst
Catasetum is a genus of important and South American orchids, strikingly appealing yet just a little overlooked by way of hobbyists. the writer, an skilled grower, has stumbled on that catasetums require very various cultural thoughts from so much orchids, but when the crops' specific wishes are saw, they don't seem to be tricky to develop effectively. one of the features that lend specific curiosity to the genus is the just about explosive free up of pollen, one of those conservatory parlor trick that delights the grower and surprises the unwary.
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Extra resources for The world of catasetums
Example text
The reader will have to excuse the quality of some photos of rare plants that could be taken only under less than studio conditions. The flowering seasons indicated for the various species are a composite of my observations and those suggested in the literature. These Page 13 can vary somewhat with the growing conditions. If the culture is to their liking, many species flower unpredictably at almost any time of the year, or again, even successively, after their normal flowering season. Instead of grouping species by affinities, I have chosen to alphabetize them to make it easier for the reader to locate a desired description.
Lindley introduced the other plant as Monachanthus viridis, although its flowers were actually the female form of the same plant material, with a large green, pouched lip. Thus the orchid literature of that time featured three different names for the same genus, thanks to the heterogamy (bearing sexually Page 29 different flowers) and polymorphism (two or more different forms) of the species. The characteristics proposed to justify this classification were as follows: Monachanthus had a column without antennae and a pouch-shaped nonresupinate lip; Myanthus had a column with antennae and a flat, resupinate lip; and Catasetum had a column with antennae and a helmet-shaped, nonresupinate lip.
He probed natural relationships, problems of pollination, evolution, and mutation. He was intrigued by the sexual organs of orchids such as Catasetum and Cycnoches, in particular. He studied the flowers of Catasetum tridentatum (synonym C. macrocarpum) and concluded that the male flowers represented C. tridentatum, the bisexual flowers Myanthus barbatus, and the female flowers Monachanthus viridis, and that C. tridentatum should therefore be considered trimorphic. He later asserted Page 31 that his conclusion applied only to C.