CYPEIPEDIUM. 65 



the meantime it had been found by Mr. Jenman, Superintendent 

 of the Botanic Garden at Georgetown, Demerara, growing on the 

 rocks under the Kaieteura Fall, on the Potaro River, and com- 

 municated by him to the Royal Gardens at Kew, where it flowered 

 in the autumn of 1885. The species is named in compliment to 

 Dr, Lindley, who " unwillingly consented at the particular instance 

 of Dr. Schomburgk to allow this plant to bear his name, he 

 having no title to the compliment."* 



C. longifolium. 



Leaves narrowly ligulate, tapering to an acute point, 18 — 24 inches 

 long. Scapes stoutish, erect, as long as the leaves, deep purple, pubes- 

 cent, 6 — 10 or more flowered. Flowers 3| — 4 inches across from the 

 tip of the upper sepal to toe of slipper ; upper sepal ovate-lanceolate, 

 undulate, pale green with rose-colour veins and whitish margin ; lower 

 sepal nearly as broad again as the upper one, ovate, acuminate, pale 

 green with green veins ; petals linear-lanceolate, spreading, slightly 

 twisted, pale yellow-green with rose-colour margins except towards the 

 base where the margins are whitish ; lip calceolate, with an angular 

 auricle between the sac and the inflexed side lobes, yellow-green tinged 

 with brown in front, the infolded lobes yellow-green dotted with rose- 

 purple. Staminode triangular-cordate, pale yellow-green with a blackish 

 fringe on the back margin, and a blunt, deflexed tooth on the front one. 

 Cypripedium longifolium, Rchb. et Warsc. in Bot. Zeit. 1852, p. 690. Bot. Mag- 



t. 5970 (1869). Belg. hort. 1873, p. 65. Selenipedium longifolium, Rchb. Xen. 



Orch. I. p. 3 (name only). Id. in Gard. Chron. 1869, p. 1206. S. dariense, Rchb. 



S. Reichenbachii, Endresjfate Rchb. Cypripedium Reichenbachii, Hort. 



var.— gracile. 



Leaves narrower, scapes more slender and paler in colour, and the 

 bracts more compressed. Flowers somewhat smaller and coloured, as in 

 the variety Hartioegii.f 



C. longifolium gracile, supra. C. gracile, Hort. 



var. — Hartwegii. 



Plant more robust with longer and broader leaves ; scapes taller, green 

 (not purple as in the type). Flowers somewhat larger, the dorsal sepal 

 usually with a pale rose-colour stain on the apical half, the petals 

 bordered with rose-pink. 



C. longifolium Hartwegii, supra. C. Hartwegii, Rchb. in Bot. Zeit. 1852, pp. 714, 

 765. Selenipedium Hartwegii, Rchb. in Bonpl. II. p. 116. Id. Xen. Orch. I. p. 3 

 (name only), and p. 70, t. 27. Id. Otia. Hamb. I. pp. 20, 30. Cypripedium Roezlii, 

 Regel's Gartenfl. 1871, p. 164. Id. 1873, t. 754. Rev. hort. 1873, p. 416, icon. xyl. 

 Jllus. hort. 1873, t. 138. Bot. Mag. t. 6217. Selenipedium Roezlii, Rchb. in Regel's 

 Gartenfl. 1871, p. 164. S. longifolium coloratum, Rchb. in Gard. Chron. 1873, 

 p. 289. 



* Gen. et Sp. Orch. p. 531. t A- s seen in the collection of Mr. R. I. Measures at 



Cambridge Lodge, Camberwell, a collection exceptionally rich in rare Cypripedes. 



