ONCIDIUM. 633 



ovate compressed, about 4 inches long ; the leaves are about 1 foot long, linear- 

 oblong acute, leathery, keeled ; and the scape is 2 to 3 feet long, including a lax 

 flexuous panicle of twenty to thirty flowers, which are 2-|- inches in diameter. 

 The sepals are long-clawed, the upper trulliform much crisped, the apex 

 reflexed, the lateral more ovate and less crisped, all chocolate-brown tipped with 

 yellow ; the petals are smaller, cordate, oblong, recurved, with a shorter broader 

 claw, yellow in the apical half, barred with chocolate in the basal portion ; the 

 lip is much smaller, revolute, trulliform, of a blackish-purple, with the crest 

 yellow. — XeiD Grenada; Venezuela. 



Fia.— But. Mug., t. 5980; Orchid Album, vi.t. 27(1; Jb«c«. ii/' //o/'f ., 1891, xxii. 

 p. 121, f. 2i ; VcUch'.i 3I.ni. Orch. PI., vhi. p. 82. 



O. TETRACOPIS, Rclih. f. — A pretty species belonging to the Mk-rocMla 

 section. " Sepals cjiestnut-brown, superior one with a yellow border ; the petals 

 are bright yellow with some brown round blotches ; the lip is yellow ; the 

 flowers are as large as those of a well-developed 0. supcrhiens " (Gardeners' 

 Chronicle, 1873, p. 915). — Xeu- Gi-enada. 



O. TIGRINUM, Llave et Lex.— One of the most beautiful and free-blooming 

 of the large-flowered yellow Oneida. The pseudobulbs are ovate compressed, 

 blunt-edged, 3 inches long, bearing two or three lanceolate oblong leathery 

 leaves, and from the base a panicle of numerous large showy flowers, which 

 have the odour of violets. The sepals are linear-oblong, acute, wavy, revolute 

 at the margins, the lateral ones curving upwards so that all three stand above 

 the base of the lip ; the petals are similar in form, and also curve upwards ; 

 both sepals and petals are 3-ellowish-green, heavily marked with transverse 

 bands of dark chestnut-brown ; the lip is three-lobed, with the central part 

 transversely oblong reniform, 1| inches broad, emarginate and apiculate, the 

 smaller lateral lobes being almost semi-circular, and placed behind the distinct 

 basal isthmus connecting the front with the hinder portion, the whole being of a 

 bright clear yellow. It produces these branching panicles of flowers during the 

 dull months of autumn and winter, which greatly enhances its value, and it lasts 

 six weeks in bloom. There have been several importations during the last 

 three years, which has made this fine Orchid more plentiful. It should be 

 grown in the Mexican house. — Mexico ; Guatenuda .- Mechoacan. 



Fig.— Sertum Orch., t. 48 ; Hot. Beg., t. 1651 ; L'Jll. Hurt., t. 2 ; Orchid Alhvni, 

 iii. t. 137 ; Vaxton, Mag. But., xiv. p. 97, with tab. ; Beichcnbavh'w, ii. t. 88. 



Syn. — O.Barhcri; OduntuglussKiu tigrinnm. 



O. TIGRINUM LUGENS, lichb. /.—A variety with "sepals and petals of a 

 reniform dark reddish-brown inside, the extreme tips being yellow ; the dorsal 

 keels on those organs are green." 



O. TIGRINUM SPLENDIDUM.-See O. splendidtjm. 



O. TIGRINUM UNGUICULATUM, Lindl. — A pretty winter-blooming variety, 

 in which the somewhat smaller flowers are produced on a long branching scape, 

 3 or 4 feet high, and last a long time in perfection ; they are of a pale green 

 colour, speckled with crimson, the lip clear yellow. It succeeds best potted in 

 good fibrous peat. — Mexico. 



StN. — 0. iununinum. 



