ORCHIDACEiE, 



239 



having plenty of fibres in it, the more the better, 

 mixed with a portion of potsherds. Elevate the 

 plant above the rim of the pot. 

 Trigonidum obtusum — Demerara — 1834 —Aug. 



Flowers a yellow, green, and orange colour. 

 Egertonii— Honduras — 1836. 



This genus grows freely in light tufty peat. A 

 good drainage, and a liberal supply of water, gra- 

 dually diminishing it after they have perfected their 

 growth. Give a season of rest, but not too long, 

 otherwise the plants will receive injury. 

 Trichocentrum fuscum — Mexico — 1836 — July. 



Sepals and petals brown and green ; lip white, 



and beautifully marked with crimson : a neat 



little species. 



iridifolium— Demerara — 1836. 



Flowers a pale yellow ; lip delicately streaked 



with a darker colour. 



This tribe grows freely potted in light tufty peat. 

 Give good drainage, and place them in a moist 

 stove : they require a liberal supply of water, 

 gradually diminishing it after they have perfected 

 their growth. Give them a season of rest, taking 

 care not to over dry them. 



Class, Gynandria. Order, Monandria. 



Vanilla planifolia — West Indies — 1800 — Jan. and 

 Feb. — Cuttings. 



Flowers white ; lip dotted with yellow. 



