THE MOST USEFUL ORCHIDS 97 



crassinode x Z). Wardiantim), appeared naturally, and has been also 

 raised artificially. D. Wigani^ (Z). nobile x D. signatum\ is 

 another of the fine series of modern hybrids with yellow colouring; 

 it has been raised several times, and has a distinct variety in D. W. 

 xanthocheilum. 



Other Species and Hybrids 



Among species that are deserving of attention where there is 

 room for more than those already noted, the following may be 

 selected : — D. atroviolaceum, a species from New Guinea, with 

 violet lip ; D. barbatulum, white flowers in close racemes ; 

 D. BiGiBBUM, an Australian species with rounded, deep purple 

 flowers ; D. chrysotoxum, a Burmese species with yellow flowers, 

 short, thick, pseudo-bulbs, and long leathery leaves ; D. Ccelogyne, 

 a striking species with large Ccelogyne-like flowers, coloured green 

 and purple ; D. cretaceum, flowers dull white, with yellow, red- 

 marked lip ; D. CRYSTALLiNUM, white, tipped with purple, very free 

 flowering; D. Harveyanum, bright yellow, with fimbriated 

 petals; D. Linawianum, a rather rare species with rose-purple 

 flowers ; D. Lowii, about a foot high, flowers light buff^-yellow ; 

 D. MacCarthi^, a curious species that has large, flattened 

 flowers, rosy mauve and rich purple; D. moschatum, yellow, 

 with dark maroon base to the lip, musk scented ; D. ochreatum. 

 a dwarf plant with orange-yellow flowers ; D. sanguinolentum, 

 amber-yellow with red-purple markings; D. speciosum, an Aus- 

 tralian species that does not need the tropical conditions afforded 

 most Dendrobiums : the flowers are small, buff^ coloured, sweetly 

 scented, and carried in stiffs, dense racemes : the variety Hillii has 

 whiter flowers dotted with purple, and makes a fine specimen 

 when well managed ; D. Victoria-Regina, the so-called " blue " 

 Dendrobium from the Philippine Islands, has small, bluish 



