398 XCIJ. SCROPHULARIACEE (HEMSLEY AND SKAN). [| Buchnera. 
B. browniana, Schinz in Verh. Bot. Ver. Brandenb. xxxi, 194, collected by 
Schinz at Auweb in S.E. Ondonga, appears from the description to be synonymous 
with the above. 
50. B. longifolia, Alotzsch in Peters, Reise Mossamb. Bot. 225. 
An erect often robust annual herb up to 2} ft. high ; stem terete or 
subterete, usually much branched chiefly about the middle, more or 
less pubescent or pilose (often hispidly); branches alternate, erect- 
spreading, up to 1 ft. long. Leaves opposite below, alternate above, 
oblong or oblong-lanceolate to linear-lanceolate, up to 34 in. long and 
2 in, broad, obtuse to acuminate, narrowed at the base, sometimes 
shortly petiolate, entire or serrate, pubescent, often very scabrid. 
Spikes terminal, from a few inches to more than 1 ft. long when in 
fruit; flowers and fruit usually very much crowded above, distant 
below, usually alternate, shortly pedicellate ; bracts ovate- or oblong- 
lanceolate to lanceolate, acute or acuminate or sometimes with a subulate 
apex, 14-2 lin. long (the lower sometimes up to 1 in. long), rigid, 
concave, more or less pubescent, ciliate ; bracteoles linear to lanceolate- 
triangular, 1-2 lin. long. Calyx 2-4 lin. long, 10-nerved, 5-toothed, 
pubescent with long or very short hairs, hispid and often scabrid, 
especially in fruit; teeth lanceolate-triangular to narrowly deltoid, 
acute or acuminate, }-1 lin. long, the uppermost sometimes smaller than 
the rest. Corolla-tube 34-4} lin. long, narrowly cylindric, slightly 
curved, glabrous or sparingly pilose ; lobes oblong to obovate, $1} lin. 
long, 3-1 lin. broad. Anthers acuminate. Style 3-13 lin. long. 
Capsule oblong, ovoid or oblong-ovoid, slightly curved and compressed, 
2-34 lin. long, apiculate. 
Upper Guinea. Senegambia, Leprieur, 8! Gambia, Brown-Lester, 62! 
Ingram / 
Wile Land. Eritrea: Ginda, 3300 ft., Schweinfurth & Riva, 2121! Uganda: 
Masai River, 6000 ft., Scott-Elliot, 6783 ! ; 
Mozamb. Dist. Portuguese East Africa: Rios de Sena, Peters. Makua 
Country ; Namuli Hills, Zas¢ / Lower valley of the River Shire, Meller ! British 
Central Africa: Nyasaland, Buchanan, 476! between Mpata and the commence- 
ment of the Tanganyika Plateau, 2000-3000 ft., Whyte! Manganja Hills, Meller! 
Mount Chiradzulu, Whyte ! : 
We have not seen the type specimens of this species, but KTotzsch’s description 
required only some slight modification to include all the specimens cited. The species 
is closely allied to B. hispida, and may be ouly a more robust form of it. 
51. B. prorepens, Hngl. & Gilg in Baum, Kunene-Samb. Exped. 
368. A prostrate herb loosely branched from the base, glabrous on the 
branches and leaves; branches very slender, terete, leafy, 12-16 in. long; 
internodes 34-5 lin. long. Leaves opposite, sessile, oblong-lanceolate 
or sometimes elliptic, 4—5 lin, long, 2—24 lin. broad, acute, cuneate at 
the base. Flowers solitary in the axils of nearly all the leaves, shortly 
pedunculate ; peduncle about 1} lin. long; bracts 2, linear, 23-3 lin. 
long, }-} lin. broad, acuminate. Calyx 3—34 lin. long, rather densely 
covered at the base with long whitish hairs, glabrous above ; teeth 
narrowly lanceolate, 14 lin. long, acuminate. Corolla azure-blue; tube 
