MOUNT RORAIMA IN BRITISH (JUIANA. 65 



Simrantuks bifida, Ridl. in Trans. Linn. Soc. Ser. II. Bot. ii. (1887), p. 283. 



Kotinga Valley, McConnell 8f Quelch, 200. Roraima, summit, 8600 it. alt,, McConnell 

 8r Quelch, 692. South side at 5500 ft., im Thurn, 342.— Endemic. 



POGONIA parviflora, Iteiehl). f. Xen. Orch. ii. p. 90 ; Ridl. in Trans. Linn. Soc. Ser. 11. 

 Bot. ii. (1887), p. 283. 

 Iloraima, upper slopes, McConnell Sf Quelch, 30. "Flowers pink and waxy." South 

 side at 5500 ft., im Thurn, 115. — Endemic. 



Pogonia tenuis, Reichb. f. in Griseb. Fl. Brit. W. Ind. p. 637. 



Roraima, summit, 8600 ft., McConnell 8f Quelch, 691. — Also found in Trinidad, 

 Venezuela, and on the Upper Amazon. 



Habenaria Moritzii, Ridl. in Trans. Linn. Soc. Ser. II. Bot. ii. (1887), p. 28 t. 



Roraima, upper slopes, McConnell Sf Quelch, 4; at 4000 ft., im Thurn, 367. — Also 

 found in Venezuela. 



Habenaria roraimensis, Rolfe, sp. n. Planta erecta, foliosa. Folia caulina, basi 



lanceolata, acuta, superiora gradatim in vaginas bracteiformes decrescentia. Bracteae 



lanceolatae, acuminata?. Sepalum posticum erectum, ovatum, apiculatum ; sepala 



lateralia patentia, oblique ovato-oblonga, apiculata. Petala tripartita, lobo postico 



falcato-oblongo apiculato, antico filiformi-lineari arcuato. Labellum tripartitum ; 



lobi laterales filiformi-lineares divergentes ; lobus intermedins linearis obtusus ; 



calcar clavatum. 



Plant A-lj- ft. high, somewhat leafy. Leaves cauline, the lower lanceolate, acute, 



2-2g lin. long, 4-5 bin. broad ; upper smaller, decreasing upwards into bract-like sheaths. 



Bracts lanceolate, acuminate, 6-9 lin. long. Dorsal sepal erect, ovate, apiculate, 2-2| 



lin. long, lateral spreading obliquely, ovate-oblong, apiculate, 2-2^ lin. long. Petals 



bipartite; upper lobe falcate-oblong, apiculate, 1J-2 lin. long; lower lobe filiform-linear, 



curved, shorter than the upper. Lip tripartite ; side-lobes filiform-linear, diverging, 1^-2 



lin. long; front lobe linear, obtuse, 2-2| lin. long; spur linear-clavate, 4-5 lin. long. 



Anther-channels and stigmatic processes short. 



Roraima, summit, 8600 ft., McConnell 8f Quelch, 698. — Endemic. 



Allied to H. prcdensis, Reichb. f., but readily distinguished by its much smaller 

 flowers. 



Phragmipedium Klotzschianum, Rolfe, in Orch. R-ev. iv. (1896), p. 332. 



Cypripedium Klotzschianum, Reichb. f. in Linnaea, xxii. (1849), p. 811 ; Appun, Unter den Tropen, ii. 



p. 196. 

 Selenipedium Klotzschianum, Reiclib. 1. in Bonplandia, ii. (1854), p. 110; Ridl. in Trans. Linn. Soc. 



Ser. II. Bot. ii. (1887), p. 284. 

 Cypripedium Schomburgkianum, Klotzsch, in R. Schomb. Reisen in Brit.-Guiana, ii. p. 229 ; R. Scliomb. 



Bot. Rem. Brit. Guiana, p. 59. 



Arabapu River, McConnell &f Quelch, 144. Aroie Creek, Kotinga River, im Thurn, 5. 

 Ipelemouta, Arapu River, im Thurn, 31. Kako River, Jpptm. 1212. — Endemic. 



SECOND SERIES. — BOTANY, VOE. VI. K 



