tRICHOCENTRTJM. 169 



One of the finest species in the genus and that which is most 

 generally cultivated. It was introduced by M. Linden, it is believed, 

 from the Eio Negro region in northern Brazil; it flowered for the 

 first time in this country in the collection of the late Mr. Wilson 

 Saunders, at Hillfield, Reigate, in 1866. 



T. fuscum. 



Leaves shortly petiolate, oblong, acute, 3 — 4 inches long. Peduncles 



very short, 1 — 2 flowered. Flowers a little more than an inch across 



vertically ; sepals and petals similar, ovate, acute, purplish green ; lip 



broadly oblong, dilated and two-lobed at the apical end, bilamellate and 



prolonged into a slender spur at the base, white with a rose-purple 



blotch on each side of the lamellae. Column short with two obovate, 



denticulate wings. 



Trichocentrum fuscum, Lindl. in Bot. Reg. t. 1951 (1837). Bot. Mag. t. 3969. 

 Echb. in Walp. Ann. VI. p. 545. 



Introduced from Mexico in 1835 by Mr. Knight, our predecessor 



at the Royal Exotic Nursery, where it flowered in July of the 



following year. 



T. maculatum. 



Leaves linear or lanceolate-oblong, acute, 2 — 3 inches long. Peduncles 



as long as the leaves, 1 — 2 flowered. Flowers 1| inch across vertically; 



sepals and petals broadly oval-oblong, obtuse, white with the central area 



densely spotted with rose ; lip obovate, two-lobed in front, the apical 



area coloured like the sepals and petals, the basal area with two 



longitudinal shallow keels, bright yellow dotted with red ; spur slender, 



as long as the pedicel and ovary, pale green. Column wings spreading, 



denticulate, yellow spotted with red, 



Trichncentrum maculatum, Lindl. Orch. Lind. p. 24 (1846). Rchb. in Walp. Ann. 

 VI. p. 545. 



Originally discovered by Linden in 1842 growing on old trees at 



an elevation of 4,500 feet on the Sierra Nevada of Santa Martha 



in northern Colombia, and subsequently gathered by Schlim and 



Wagoner near Ocana, whence it has since been occasionally imported. 



It is a handsome species that has appeared within the last few 



years at the Royal Horticultural Society's meetings under various 



names which are here purposely suppressed to avoid a burdensome 



unauthoritative synonymy. 



T. Pfavii. 



Leaves ligulate-cuneate, sub-acute, 3 — 4 inches long. Peduncles shorter 

 than the leaves, 1 — 2 flowered. Flowers about 1^ inch across vertically; 



