MOUNT RORAIMA IN BRITISH GUIANA. 65 
SPIRANTHES BIFIDA, Ridl. in Trans. Linn. Soc. Ser. II. Bot. ii. (1887), p. 283. 
Kotinga Valley, Me Connell & Quelch, 200. Roraima, summit, 8600 ft. alt., McConnell 
& Quelch, 692. South side at 5500 ft., im Thurn, 342.— Endemic. 
PoGONTA PARVIFLORA, Reichb. f. Xen. Orch. ii. p. 90; Ridl. in Trans. Linn. Soc. Ser. II. 
Bot. ii. (1887), p. 283. 
Roraima, upper slopes, Me Connell & Queleh, 30. * Flowers pink and waxy." South 
side at 5500 ft., im Thurn, 115.—Endemic. 
Poconta TENUIS, Reichb. f. in Griseb. Fl. Brit. W. Ind. p. 637. 
Roraima, summit, 8600 ft, McConnell & Quelch, 691.—Also found in Trinidad, 
Venezuela, and on the Upper Amazon. 
HABENARIA Moritzi, Ridl. in Trans. Linn. Soc. Ser. II. Bot. ii. (1887), p. 284. 
Roraima, upper slopes, WeConnell & 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 braeteiformes decrescentia.  Braetem 
lanceolate, acuminate. Sepalum posticum erectum, ovatum, apiculatum; sepala 
lateralia patentia, oblique ovato-oblonga, apiculata. Petala bipartita, lobo postico 
faleato-oblongo apiculato, antico filiformi-lineari arcuato. Labellum tripartitum ; 
lobi laterales filiformi-lineares divergentes; lobus intermedius linearis obtusus ; 
calcar clavatum. 
Plant 4-11 ft. high, somewhat leafy. Leaves cauline, the lower lanceolate, acute, 
2-21 lin. long, 4-5 lin. broad ; upper smaller, decreasing upwards into bract-like sheaths. 
Bracts lanceolate, acuminate, 6-9 lin. long. Dorsal sepal erect, ovate, apiculate, 2-24 
lin. long, lateral spreading obliquely, ovate-oblong, apiculate, 2-23 lin. long. Petals 
bipartite ; upper lobe falcate-oblong, apiculate, 15-2 lin. long ; lower lobe filiform-linear, 
curved, shorter than the upper. Lip tripartite ; side-lobes filiform-linear, diverging, 11-2 
lin. long; front lobe linear, obtuse, 2-91 lin. long; spur linear-clavate, 4-5 lin. long. 
Anther-channels and stigmatic processes short. 
Roraima, summit, 8600 ft., McConnell A Queleh, 698.— Endemic. 
Allied to H. pratensis, Reichb. f., but readily distinguished by its much smaller 
flowers. 
PunacMIPEDIUM KLOTZsCHIANUM, Rolfe, in Orch. Rev. iv. (1896), p. 332. 
Cypripedium Klotzschianum, Reichb. f. in Linnea, xxii. (1849), p. 811; Appun, Unter den Tropen, ii. 
. 196. Se e 
eens Klotzschianum, Reichb. £. in Bonplandia, ii. (1854), p. 116; Ridl. in Trans. Linn. Soc. 
Ser. II. Bot. ii. (1887), p. 284. AUR vue sa 5 
Tuo Schomburgkianum, Klotzsch, in R. Schomb. Reisen in Brit.-Guiana, ii. p. 229; R. Schomb. 
Bot. Rem. Brit. Guiana, p. 39. 
Arabapu River, MeConnell & Quelch, 144. 
p i j i UZ 2 . E ndemic. 
Aroie Creek, Kotinga River, im Thurn, 5. 
SECOND SERIES.—BOTANY, VOL. VI. 
