Disa. | CXXXIII. ORCHIDEZ (BROWN). 283 
abruptly contracted a little below the middle into a slender spur about 
7 lin. long, $—? lin. thick, arching-recurved or abruptly recurved a 
little above its conical base, and slightly inflated near the apex. 
Lateral sepals 5-7 lin. long, 2-24 lin. broad, obliquely oblong, sub- 
obtuse. Petals 5-6 lin. long, 3-1 lin. broad, entire, linear, slightly 
falcate, obtuse. Lip 4-5 lin. long, 4 lin. broad, linear, obtuse. Anther 
horizontal, 2 lin. long, oblong. Rostellum slightly elevated above the 
level of the anther, bifid—D. zombaensis, Rendle in Trans. Linn. Soc. 
BOr: 2, 1V- 47. t 7, £5 1-8. 
Mozamb. Dist. British Central Africa: Nyasaland; Manganja Hills, Waller ! 
Zomba, Whyte, 3! and without precise locality, Buchanan, 306! 717! 
D. zombaensis, Rendle, is identical with D. Walleri, Reichb. f., in every particular, 
and the flowers are by no means twice the size of the latter, as stated by Rendle. 
14. D. hircicornis, Reichd. f. Otia Bot. Hamb. ii. 105. Plant 
about 2 ft. high, glabrous. Flowering stem without radical leaves ; 
lowest 2-3 leaves reduced to sheaths; next 3-4 leaves strap-shaped, 
acute, erect, coriaceous, lowest 5-6 in. long, 7-9 lin. broad; others 
gradually passing into the bracts at the top of the stem. Spike 
4-5 in. long, about 3 in. thick, moderately dense. Bracts about 
equalling the flowers, 6-8 lin. long, 2-24 lin. broad, ovate-lanceo- 
late, acuminate, with reflexed tips. Flowers small. Dorsal sepal 
3-34 lin. long, 14 lin. broad, helmet-shaped, acute, dorsally produced 
into a broadly conical-based spur about 5 lin. long, 4 lin. thick, hori- 
zontally spreading or slightly ascending in the basal half, apical half 
abruptly curved downwards. Lateral sepals spreading and deflexed, 
3 lin. long, 1} lin. broad, oblong, obtuse, apiculate. Petals 2-24 
lin. long, 3 lin. broad, entire, obliquely rhomboid-oblong in upper part, 
acute, narrowed towards base. Lip 2 lin. long, linear or linear-lanceo- 
late, acute. Anther horizontal, with short subglobose cells, scarcely 
l lin. long. Rostellum deeply bifid. 
Mozamb. Dist. British Central Africa: Nyasaland; near Mt. Sochi, 3000 ft., 
Kirk, Orchideæ, 2! 
15. D. versicolor, Reichb. f. in Flora, 1865, 181. Plant 1-2 ft. 
high. Leaves of barren shoot erect, 4-12 in. long, 4-1 in. broad, linear- 
lanceolate or strap-shaped, acute or acuminate, channelled or folded 
lengthwise. Lowest leaves of flowering stem 14-4 in. long, 4-1 in. 
broad, oblong-lanceolate, acute, the rest decreasing in size upwards ; 
base of the stem and sheaths spotted with purple, upper leaves and 
stem more or less tinged with purple. Spike 4-10 in. long, about } in. 
thick, dense. Bracts as long as, or longer than, flowers, 6-9 lin. 
long, 2-31 lin. broad, ovate-lanceolate, acuminate, usually bent or 
reflexed below the apex, yellowish-green with purple tips. _Flowers 
small. Dorsal sepal erect, whitish mottled with rosy, 24 lin. long, 
1} lin. broad at the mouth, helmet-shaped, shortly conical behind ; spur 
3 lin. long, $ lin. thick, pendulous, abruptly bent at a right angle 
to its conical base, cylindrical or slightly thicker near the apex, dark 
purple. Lateral sepals deflexed, spreading, 24 lin. long, 14 lin. broad, 
