282 cxxxiii. ORCHiDE^ (brown). [Bisa. 



Ij lin. long, J-| lin. broad, linear-spathulate or cuneate-obloDg, obtuse 

 or subacute ; margins reflexed. Anther horizontal, f lin. long. 

 Rostellum quadrate, minutely 3-toothed at the subtruncate apex. 



Mozamb. I>lst. British Central Africa : Nyasaland, Buchanan, 1070 ! 



Also in the Transvaal. 



The petals are obtuse in all the specimens I have examined, not acute as described 

 by Schlechter. 



11. D. XSminiy Krdnzl. in Engl. Jahrh. xix. 248. Plant 20 in. or 

 m6re high, glabrous. Stem slender. Radical leaves 9-10 in. long, 

 4-5 lin. broad, linear-lanceolate, acute or acuminate ; stem leaves 

 sheath-like, acute. Spike about 5 in. long. Bracts about equalling 

 the ovary, lanceolate, acuminate. Flowers about as large as those of 

 D. polygonoides. Dorsal sepal extinguisher-shaped, oblong, obtuse at 

 the mouth, tapering behind into a filiform spur an inch long, straight 

 or curved, ascending, very slightly inflated towards the apex. Petals 

 obovate or spathulate, very obtuse. Lip extended, similar to the petals, 

 but longer. 



Mozaznb. Blst. German East Africa : Karagwe : Bukoba, Stuhlmann, 4089. 

 I have not seen this plant, which is said to be allied to D. Walleri, Reichb. f., 

 and D. hircicornis, Reichb. f. 



12. D. robusta, N. E. Brown, Plant 2-2 J ft. high, with a robust 

 stem 4-5 lin. thick, clothed with short sheath-like leaves, with ovate, 

 acute or acuminate tips, about as long as the internodes, and closely 

 embracing the stem. Spike moderately dense, 4-6 in. long, 2-3 in. 

 diam. Flowers large, light blue. Bracts f-lj in. long, 4J-6 lin. broad, 

 lanceolate, acuminate or acute. Dorsal sepal 4^-5 Un. in diam. at the 

 mouth, extinguisher-shaped, gradually tapering from the mouth to a 

 long, very ascending, acute, straight spur, rather slender in the apical 

 part, and measuring from mouth to tip IJ-lf in. Lateral sepals de- 

 flexed, 6-7 lin. long, 3J-4 lin. broad, oblong, obtuse, concave. Petals 

 4^-5 lin. long, 1^-2 lin. broad in upper part, entire, falcate, lanceo- 

 late, or linear-oblong, acute, auriculate at base in front. Lip 3^-4 

 lin. long, gradually tapering from the 1 lin. broad base to the acute 

 apex. Anther horizontal, Ij lin. long. 



Mozamb. Dlst. British Central Africa : Nyasaland ; between Kondowe 

 and Karonga, 2000-6000 ft., Whyte,Ml \ Shire Highlands; Wilandi, near Blantyre, 

 4000 ft., Buchanan, 23 ! Mt. Zomba, 4000-6000 ft., Whyte ! Mt. Malosa, 4000- 

 6000 ft., Whyte ! 



13. D. Walleri, Reichb. f. Otia Bot. Hamh. ii. 105. Plant 2 ft. or 

 more high, glabrous, only upper part of the stem seen. Leaves of 

 barren growth 8-10 in. long, 1-1 J in. broad, narrowly oblong or 

 strap-shaped, acute. Upper stem-leaves 2-3J in. long, lanceolate, 

 acuminate, erect, clasping at base. Spike 5-10 in. long, lj-l| in. 

 thick, not very dense. Flowers of moderate size. Bracts longer than 

 flowers, 1-2 in. long, 3-5 lin. broad, lanceolate, acuminate. Dorsal 

 sepal erect, 6-8 lin. long, 4-4J lin. broad at the mouth, helmet-shaped, 



