ORCHIDS. 



375 



large and pale green pseudo-bulLs ; the panicle is 

 much branched, bearing an immense number of 

 flowers, which are rich yellow, the sepals and petals 

 being transversely blotched with reddish-brown ; lip 

 clear yellow, stained on the crest with brown. 

 Spring months. Bolivia. 



0. bifoUum majus. — This is a dwarf-growing plant 

 which thrives best on a block of wood ; the pseudo- 

 bulbs are ovate, deep green, streaked and dotted 

 with black ; leaves in pairs, short and dark green ; 

 racemes about a foot long, many- flowered, but laxly 

 set ; lip large, bi-lobed in front, deep rich golden- 

 yellow. Spring and early summer. Monte Video. 



0. calan- 

 thuin. — The 

 pseudo - bulbs 

 are roundish, 

 ovate, smooth 

 in the young 

 state, but be- 

 coming fur- 

 rowed with 

 age ; leaves 

 lanceolate, 

 erect, and deep 

 green ; raceme 

 lax; sepals and 

 petals bright 

 rich yellow ; 

 the lip large, 

 deeper co- 

 loured than 

 the petals, 

 stained at the 

 base with red- 

 dish- crimson. 

 It is an abun- 

 dant bloomer. Oncidium crcesus, 

 Winter and 



early spring . Cordilleras of Ecuador, at consider- 

 able elevations. 



0. cheirophorum. — A small-growing species, with 

 orbicular compressed pseudo-bulbs, seldom exceeding 

 an inch in height ; the leaves are about six inches 

 long, narrow, dark green ; the scape is longer than 

 the leaves, and very slender ; the flowers are densely 

 set and numerous ; they are deliciously fragrant, 

 wholly bright, sparkling yellow ; the lip is much 

 the larger part of the flower, and is three-lobed. 

 Winter months. Volcano of Chiriqui, at 8,000 feet 

 elevation. 



0. chrysothyrsiis. — Pseudo-bulbs oblong, smooth 

 when young, becoming ribbed with age, bearing 

 a pair of oblong-lanceolate leaves, which like the 

 pseudo-bulbs are pale green ; the spike is stout and 

 erect, about three feet high, bearing a much-branched 



panicle of many flowers ; sepals and petals small, 

 greenish-yellow, transversely barred with red ; the 

 lip bifid, large, and spreading, rich golden-yellow, 

 marked at the base with purplish-crimson. Summer 

 months. Southern Brazil. 



0. concolor. — A very pretty species, which succeeds 

 best upon a block of wood, or in a hanging basket ; 

 pseudo-bulbs ovate, bearing a pair of small oblong- 

 acute leaves ; scape pendulous, bearing a dense 

 raceme of flowers, which measure some two inches 

 across ; sepals and petals nearly equal ; lip very 

 large, bi-lobed in front, the whole flower rich golden- 

 yellow, the base of the lip being ornamented with 



two lines of 

 reddish -crim- 

 son. Spring 

 and early 

 summer. Bra- 

 zil. 



0. crispum. 

 — This is a 

 very bold and 

 showy species; 

 pseudo - bulbs 

 oblong, slight- 

 ly compressed, 

 ribbed, some 

 four inches 

 high, and 

 rough, dull 

 pale brown, 

 or brownish' 

 green in co- 

 lour ; leaves in 

 pairs, lanceo- 

 late, thick and 

 leathery in 

 texture, and 

 dark green ; 



scape sometimes simple, but more usually branched, 

 bearing an immense quantity of its gorgeous 

 flowers ; sepals and petals beautifully crisp on 

 the edges, all a rich copper-colour, or rich brown, 

 according to the particular variety ; petals much 

 the broader ; ' lip large, bi-lobed in front, and like 

 the petals, crispate on the edge, rich coppery- 

 brown, the base and column yellow. In the variety 

 marginatum the sepals and petals are margined with 

 a band of golden- yellow. Hanging baskets. Summer 

 months. Organ Mountains, Brazil. 



0. crossiis. — A small plant which must be grown 

 upon a block of wood. The whole plant seldom 

 exceeds six inches in height ; pseudo-bulbs slender, 

 conical, bearing a pair of linear, fleshy, pale green 

 leaves ; scape short, bearing a few largo flowers ; 

 sepals and petals greenish-yellow, streaked with 



