202 CXXXIII. ORCHIDEH (ROLFE). [Brachycorythis. 
the lower longer. Flowers purple. Dorsal sepal elliptical, apicu- 
late; lateral semiovate, axe-shaped, acute, curved. Petals oblong, 
obtuse, incurved, obtuse-angled at the base. Lip cuneate-ligulate, 
dilated from a narrow base, trifid at the apex; side lobes semilunate, 
obtuse; front lobe minute, triangular; spur obtuse-angled. Column 
as in the allied species. 
Nile Land. British East Africa: Niamniam, on Steppes, Schweinfurth, 3577. 
Only known to me from the original description. 
4. B. Welwitschii, Reichb. f. in Flora, 1867, 99. Plant erect, 
1} ft. high, densely leafy. Tuber simple or digitate. Leaves ovate- 
lanceolate, acuminate, 11-2 in. long, decreasing upwards into the bracts. 
Racemes elongated; rhachis papillose, 6-7 in. long, many-flowered. 
Bracts ovate-lanceolate, acuminate, longer than the flowers, 5-13 lin. 
long. Flowers white with a brownish-red lip. Dorsal sepal ovate, 
obtuse, 2} lin. long; lateral semiovate-oblong, subobtuse. Petals 
semiovate-oblong, obtuse, auriculate at the base on the outer side. 
Lip 64 lin. long, constricted above the cymbiform or subsaccate base ; 
limb obovate, trilobed at the apex; side lobes triangular-oblong, obtuse, 
crenulate on the outer margin; front lobe triangular, obtuse ; dise 
carinate. Column stout, 1} lin. long. 
Lower Guinea. Angola: Huilla, Sobato de Humpata, about 4500 ft., in wet 
meadows, Welwitsch, DO ! 
5. B. pleistophylla, Reichb. f. Otia Bot. Hamb. ii. 104. Plant 
14-2} ft. high, strict, densely leafy, turning black in drying. Leaves 
oblong-lanceolate or ovate-lanceolate, very acuminate or aristate- 
acuminate, 1-2 in. long, decreasing into sheaths below and bracts above. 
Racemes elongate, 4-8 in. long, dense, many-flowered. Bracts lanceo- 
late or oblong-lanceolate, acuminate, 6—9 lin. long. Pedicels 4-6 lin. 
long. Dorsal sepal ovate, subacute, 3 lin. long; lateral comin 
acute, 3 lin. long. Petals broadly ovate, obtuse or truncate, 33 1m. 
long. Lip 6 lin. long, elliptic-obovate from a narrow, slightly Cars? 
base, bilobed above; lobes oblong, obtuse, sometimes with a mint 
tooth in the sinus; disc carinate, with a pair of erect linear calli near 
the base. Column stout, 3 lin. long. 
Mozamb, Dist. British Central Africa: Nyasaland ; Shire Highlands, ne 
Blantyre, Last! Mt. Sotchi, Scott-Elliot, 8570! Mlanje, Whyte ! 7000 ft., sb 
and without precise locality, Buchanan, 1345! Portuguese East Africa : Morambala 
Mountain, near Shire River, 3000 ft., Kirk ! 
6. B. parviflora, Rolfe. Plant about 16 in. high, leafy. eme 
ovate-lanceolate, acuminate, 3-1} in. long, decreasing into sheat 
below and bracts above. Racemes 3} in. long, dense-flowered. ~“ 
lanceolate, acuminate, 5-6 lin. long. Pedicels 4 lin. long. Dorsa 
sepal elliptic-lanceolate, subacute, 2 lin. long; lateral elliptic-oblong; 
obtuse, 2 lin. long. Petals obovate-oblong, obtuse, 24 lin. Se 
Lip 24 lin. long, constricted above the cymbiform base, then ré Si 
dilated, shortly trilobed at the apex; side lobes rounded ; front t0 
