BULBOPHYLLUM(Bulbophyl’lum ) .
A noteworthy and varied group of Orchids which are establish principally from Ceylon to Java , but also in Central and South America , particularly in Brazil : they grow wild on trees . None of the American kinds , and only a few of those from easterly Asia , are worth cultivating , as the flowers of many are peanut . The name Bulbophyllum is derived from the Greekbulbos , a bulb , andphyllon , aleaf . These plant go to the kinsperson Orchidaceae . ( The Orchids treated in this book under the name Megaclinium are by some botanist let in in Bulbophyllum . )
Although these orchidaceous plant vary greatly in appearing , the pseudobulbs are generally localize at intervals on a crawl rhizome and usually each pseudobulb has only one folio . The heyday are carry singly , or several together , on arch or erect ear .
Hothouse Orchids
In wintertime a Nox temperature of 60 degree is high enough , but the Clarence Shepard Day Jr. temperature should uprise 5 - 10 point , and in summertime an endeavor should be made to ensure a tropic atm , with a dark temperature of 65 - 70 degrees or higher .
Free drainage is essential , so that even the expectant kinds should be acquire in pans , rather than in toilet . The smaller kinds are locate in pans suspended about 18 in . from the roof methamphetamine hydrochloride . Shading must be provided in bright weather .
Repottingshould be carry out in spring and former summer when overbold growth begins . Some sort have crawl rhizome which eventually grow alfresco and encircle the pans ; those need not be repotted for 3 or 4 age provided the surface compost is renewed each year . In winter these Orchids call for far less water system than in summertime , though the compost of the evergreen kinds must not be allowed to get really dry . A suitable compost consists of weakened osmunda character . These Orchids also grow satisfactorily in Fir bark .
Propagationis effected by division of the plants , the rhizome being severed when the plant is repotted and the severed pieces , each with several bulbs , are placed in disjoined peak genus Pan .
The Common Kinds
The following are the best kind in the dissimilar section . B. Lobbii , from Burma , and its large - bloom mixed bag , Colossus , have tumid stems bearing single efflorescence 2 - 4 in . across , buff - yellow marked with purplish - red in summer and fall . The sepals of B. Dearei , another summer - flowering kind , are streaked and suffused with purpleness . B. Dearei is a native of Borneo and the Philippines .
Giant Orchids
B. Fletcherianum is a New Guinea kind which bears orotund purplish blossom in clustering . B. marcobulbon , from New Guinea , is similar in growth but has flowers with brusk , broader segments on short spikes . Both of these bloom at motley periods and the blossom of both are evil - smelling . B. grandiflorum , from New Guinea , is singular for the size of it of the dorsal sepal which forms a hood over the minute petals and lip ; both dorsal and lower sepal are olive - green with greenish - white spots — almost snakelike in colour ; fall and early winter are the main flowering seasons . B. leopardinum bears xanthous and reddish flowers in summer .
