114 EXXXIV. APOCYNACE# (STAPF). [ Rauwolfia. 
10. R. Preussii, K. Schum. in Engl. & Prantl, PAanzenfam. 
iv. ii. 154, fig. 56, 8. Branches terete, slender olive-brown, dotted 
with whitish lenticels. Leaves ternate, obovate-oblong, suddenly con- 
tracted into a linear acumen (up to 6 lin. long and 1-1} lin. broad), 
cuneate at the base, very variable in size, up to 7 in. long and 2} in, 
broad, thinly membranous; secondary nerves about 6-10 on each side ; 
veins quite obscure ; petiole 4—6 lin. long. Flowers in paired subscorpioid 
or raceme-like cymes, much contracted when young, resembling a small 
corymb; peduncle $1} in. long; pedicels up to2 lin. long. Calyx # lin. 
long ; segments lanceolate-linear, obtuse. Corolla-tube about 2 lin. long; 
lobes rounded, } lin. long. Fruit an obliquely obovoid simple or obcor- 
date twin drupe, acute, 4 lin. long.—Schlechter, Westafr. Kautschuk- 
Exped. 307. 
Upper Guinea. Cameroons: Barombi, Preuss, 65! 342 ! Lolodorf, Staudt, 384! 
Mundame, 660 ft., Schlechter, 12929. 
11. R. rosea, K. Schum. in Engl. Pf. Ost-Afr. C. 317. A gla- 
brous shrub, about 6 ft. high; branches divaricate, terete, slender. 
Leaves ternate, obovate-oblong to oblong, acuminate (acumen acute, 3 in. 
long), acute to cuneate at the base, 4-6 in. long, 13-2} in. broad, 
thinly membranous, dark green above, pale beneath ; secondary nerves 
9-12 on each side, oblique, curved ; veins obscure ; petiole 4—6 lin. long 
Cymes solitary or 2-4 on a common peduncle, few-flowered, racemiform™ ; 
peduncle very slender, $—? in. long. Calyx not quite 1 lin. long ; segments 
ovate, subacute. Corolla rose-coloured ; tube 2} lin. long, villous at the 
mouth ; lobes orbicular-ovate, # lin. long. Fruit an oblique, oblong- 
ovoid, simple, or an obcordate twin drupe, each drupe 4 lin. long. 
Mozamb. Dist. (ierman East Africa: Usambara; Lutindi, in forests, Holst, 
3250! Nguelo, Heinsen ! 
12. R. Cumminsii, Stapf. A glabrous shrub; young branches 
quadrangular, slender. Leaves in whorls of 3-4, oblanceolate, acuml- 
nate, long attenuate at the base, 4-6 in. long, 1-14 in. broad, dull pale 
green, membranous; secondary nerves about 12 on each side, oblique, 
curved; petiole 1-3 lin. long. Cymes 3-1-flowered, lax, arranged in 
4-2-rayed umbels; peduncle about 3 in. long, slender ; rays about 3 lin. 
long, very slender; pedicels 1} lin. long. Calyx } lin. long; segments 
ovate, acute. Corolla unknown in the normal state. Fruit a simple 
or twin drupe, with the two halves quite free and divaricate ; drupes 
semi-elliptic, 5 lin. long, much compressed from the sides, red, outer 
edge almost straight. 
Upper Guinea. Ashanti: Assin Yan Kumasi, Cummins, 216! 
The corollas of the specimen are, below the middle, deformed by a gall insect. 
They are about 43 lin. long of which nearly 2} lin. go to the gall, which consists of 
an almost solid thick ellipsoid body. 
13. R. mombasiana, Stapf in Kew Bulletin, 1894, 21. A shrub. 
up to 6 ft. high, perfectly glabrous; youngest branches quadrangular. 
