202 cxxxiii. ORCHIDE^ (rolfe). [Br achy cor y this. 



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. 



Zrile Kand. British East Africa : Niamniam, on Steppes, Schweinfurth, 3577. 



Only known to me from the original description. 



4. B. Welwitschii, Reichh, /. in Flora, 18G7, 99. Plant erect, 

 1 J ft. high, densely leafy. Tuber simple or digitate. Leaves ovate- 

 lanceolate, acuminate, lJ-2 in. long, decreasing upwards into the bracts. 

 Racemes elongated ; rhachis papillose, G-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 6 J 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 ; disc 

 carinate. Column stout, If lin. long. 



Iiower Guinea. Angola : Huilla, Sobato de Humpata, about 4500 ft., in wet 

 meadows, Welwitsch, 707 ! 



5. B. pleistophylla, Reichh. f. Otia Bot. Hamh. ii. 104. Plant 

 1|-2J 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, 8 lin. long; lateral semiovate, 

 acute, 3 lin. long. Petals broadly ovate, obtuse or truncate, 3 J lin. 

 long. Lip 6 lin. long, elliptic-obovate from a narrow, slightly gibbous 

 base, bilobed above; lobes oblong, obtuse, sometimes with a minute 

 tooth in the sinus ; disc carinate, with a pair of erect linear calli near 

 the base. Column stout, f lin. long. 



Mozamb. Dlst. British Central Africa : Nyasaland ; Shire Highlands, near 

 lilantyre. Last! Mt. Sotchi, Scott-Mliot, 8570! Mlanje, Whyte ! 7000 ft., McClouniet 

 and without precise locality, Buchanan, 1345 ! Portuguese East Africa : Morambala 

 Mountain, near Shire River, 3000 ft., KirTc ! 



6. B. parviflora^ Rolfe. Plant about 16 in. high, leafy. Leaves 

 ovate-lanceolate, acuminate, ^-^\ in. long, decreasing into sheaths 

 below and bracts above. Racemes 3 J in. long, dense- flowered. Bracts 

 lanceolate, acuminate, 5-6 lin. long. Pedicels 4 lin. long. Dorsal 

 sepal elliptic-lanceolate, subacute, 2 lin. long ; lateral elliptic-oblong, 

 obtuse, 2 lin. long. Petale obovate-oblong, obtuse, 2J lin. long. 

 Lip 2J lin. long, constricted above the cymbiform base, then broadly 

 dilated, shortly trilobed at the apex ; side lobes rounded ; front lobe 



