iseng cari-cari di inet eh nemu ini.. cakep ya bunganya.. tapi tau deh wangi ato ga... soale yg dirumah belum bunga.. :* Sadokum, a new orchid genus from Southeast Asia Based on detailed studies of the different Grammatophyllum species, Danilo A. Tiu, a Filipino horticulturist and orchid specialist, and Jim Cootes, an Australian researcher, have recently identified a new genus of orchid, which they called Sadokum. Grammatophyllum or Gramma, as known in the horticultural trade, is the world’s largest orchid, known for its enormous size and varied markings on the flowers, hence sometimes called the “letter plant”. Some Grammatophyllum species grow to a length of 2.5 m. Some can develop into gigantic clusters weighing from several hundred kilograms to one ton, with the roots forming spectacular bundles. Sadokum, which is currently assigned with the genus Grammatophyllum, is a new genus of orchid, according to Tiu and Cootes, based on the following features of the said genus: brittle and shiny leaves; short, glossy; and more rounded pseudobulb (solid bulbous enlargement of the stem in orchids) unlike that of Grammatophyllum, which is oblong; short and pendulous inflorescence with few flowers; dorsal sepal that is very much arched like a hood that protects the column; and petals that are distinctly shorter than the sepals and are curved backward or downward. Other features noted by the researchers were the labelum with a very big mid-lobe; a column, which is very much curved with a hollow and prominent base; and floral markings, which are also different from those of the other Grammatophyllum species. The basal flowers of the plant do not exhibit serious deviations from the normal type, though, as commonly seen in all other Gramma species. The above differences are considered “to be of sufficient validity as to create a new genus for this plant,” Tiu and Cootes claim. Sadokum is derived from “sadok”, a Samar-Leyte vernacular for cap or hood. The name of the new orchid genus, as given by the two researchers, actually refers to the hood-like dorsal sepal of the flower that seems to protect the column of the bloom. The origin of the specimen, the province of Surigao, is another consideration for the name given by the researchers. Applying the word sadok into the generic epithet gives the plant an Austro-Malayan sound since the Philippine language and its dialects are part of the greater Austro-Malayan family of languages. Sadokum can be found in the Philippines, Malaysia, Sumatra, Java, Sulawesi, and New Guinea. The genus contains one species, S. stapeliiflorum (Teijsm. & Binn.) D. Tiu & Cootes. Tiu is a member of the experts’ pool of the PCARRD, while Cootes is a research associate for the Centre for Plant Biodiversity Research in Canberra, and has been studying Philippine orchids for more than 30 years.
Posted on: Sun, 17 Aug 2014 12:04:14 +0000
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