Platycoryne. | CXXXIII. ORCHIDEZ (ROLFE). 257 
below. Anther channels as long as the stigmas; caudicles very long. 
Rostellum small, linear, nearly as long as the anthers.—Habenaria 
Wilfordit, Ridl. in Journ. Bot. 1886, 295; Kränzl. in Engl. Jahrb. xvi. 
210. 
Upper Guinea, Sierra Leone: Freetowa, Wilford! in grassy places among 
bushes, Preuss (ex Krdnzlin). 
4. P. buchananiana, Rolfe. Plant 1-1} ft. high. Tuber oblong, 
7-8 lin. long. Leaves 5-6, cauline, linear-lanceolate, acuminate, 
{+14 in. long, decreasing upwards into the bracts. Racemes 1-24 in. 
long, few- to many-flowered. Bracts ovate-lanceolate, acute or acumi- 
nate, 4-7 lin. long. Pedicels 6-9 lin. long. Flowers yellow. Dorsal 
sepal elliptic-ovate, acute, 3-4 lin. long; lateral lanceolate-oblong, 
acute, 3-4 lin. long. Petals oblong-lanceolate, acute, 24-3 lin. long, 
forming a galea with the dorsal sepal. Lip entire, triangular-lanceolate, 
subobtuse, broader and obscurely angled at the base, 24—34 lin. long; 
spur 53-6} lin. long, slender below, subclavate above. Stigmatic pro- 
cesses oblong, stout, connate, 3 lin. long. Anther channels erect, stout, 
nearly as long as the stigmas. Rostellum triangular, subulate, 1 lin. 
long.— Habenaria buchananiana, Kränz, in Engl. Jahrb. xix. 247; 
Rendle in Journ. Bot. 1895, 295. 
Mozamb, Dist. British Central Africa: Nyasaland, Buchanan, 739! 1155! 
Lake Nyasa, Simons ! Shire Highlands, plentiful in marshy places, Buchanan, 318! 
Manganja Hills, Waller ! Magomoro Mission Station, 3000 ft., Waller! Mt. Mlanje, 
Scott-Elliot, 8617! Urungu; Fwambo, South of Lake Tanganyika, 5250 ft., Nutt! 
German East Africa: Unyamwezi; Msalala, Hannington! Urambo, Hannington ! 
5. P. tenuicaulis, Rolfe. Plant very slender, 1 ft. high. Leaves 
about 5, linear, acute, distant, bract-like,1-1} in. long, with sheathing 
base (basal ones not seen). Racemes subcorymbose, 1} in. long, few- 
flowered. Bracts ovate, acute, 4-5 lin. long. Pedicels 7 lin. long. 
Flowers small. Dorsal sepal broadly ovate, acute, cucullate, 44 lin. 
long; lateral reflexed, narrowly linear-oblong from a short base, acute, 
unequally plicate, 5 lin. long. Petals entire, falcate-linear, acute, 
adnate to the sides of the dorsal sepal into a galea, 4 lin. long. 
Lip ligulate, obtuse, obtusely angled on both sides above the base, with 
much reflexed margin, 44 lin. long; spur slender, 7 lin. long, scarcely 
dilated at the apex. Stigmatic processes ovate-subrhomboid, com- 
pressed, with a slender base, 14 lin. long. Anther erect, strongly 
apiculate; channels truncate, slightly longer than the stigmas. Ros- 
tellum triangular, very apiculate, slightly longer than the anther, 2 lin. 
long.— Habenaria tenuicaulis, Rendle in Journ. Linn. Soc. xxx. 396. 
Mozamb. Dist. German East Africa: between Unyamwezi and the coast, 
Taylor ! 
_ §. P. crocea, Rolfe. Plant slender, 1-1} ft. high. Leaves about 
‘, cauline, lanceolate, acute or acuminate, 3-1} in. long, 14-2 lin. broad, 
decreasing upwards. Racemes short or subcapitate, 3—4-flowered. 
Bracts ovate-oblong, acuminate, 3-6 lin. long. Pedicels 5-6 lin. long. 
VOL. VII. S 
