132 ORCHIDS 



Corymb is. 

 dilated at the apex ; columns long and erect. There are six 

 or seven species, but all are rare in cultivation outside 

 botanic rardens. 



COTTON I A. 



According to the "Flora of British India," this is a mono- 

 typic genus of the tribe VaiidciC, Wight's name being a com- 

 plimentar}' one to Major-General Cotton, C.S.I., an indefatig- 

 able collector. The species is an interesting stove Orchid, 

 with a lip resembling that of Oplirys arauifcra. It requires 

 the East Indian-house treatment. 



C. Champion! (Litidl.). — This is now referred to Diplopyora 

 Chainpioni. 



C, macrostachya ( Wight). — Flowers \m. across ; sepals sub- 

 spathulate; petals orange, with red streaks ; lip dark purple, with a 

 villous-golden margin; scape ift. to lift, long, erect; branches few, 

 tipped by short racemes. India, 1S40 and 1S85. Syns. C.pedi/n- 

 citlaris and Vanda peditiicularis. (B. M., t. 7099.) 



C. peduncularis (//«(//.). — A synonym of C. macrostachya. 



CRYPTARRHENA. 



Two species of intermediate-house, epiphj-tal Orchids, of the 

 tribe ]^andc(.e,-Ax& included by Robert Bro\\-n under this name. 

 The name is in allusion to the hidden anthers — from krvptos, 

 concealed, and arrlieii, a male. One species is found in 

 the West Indies and West and Central America, and the 

 other in Surinam. They are to be found in botanic collec- 

 tions onl)-, and are of little horticidtural interest. 



CRYPTOCHILUS. 



Wallich founded this genus, which contains a couple of 

 species of sto\-e, epiphytal Orchids, of the tribe Epidouirea:, 

 natives of the Himalayas. They are rarely seen in cultiva- 

 tion. Flo\A-ers closely set in distichous spikes, shorter than 

 their persistent bracts : sepals connate in an equalh- three- 

 lobed, gibbous, five-toothed tube ; petals narrow; lip included, 

 adnate to the foot of the column, narrow, erect ; pollinia 

 eight. Fseudo-bulbs crowded, one- or t\\'o-lea\-ed. The 



