Rauvolfia| LXXXII. APOCYNACE. 665 
3. RAUVOLFIA Plum. Gen. p. 19, t. 40 (1703), L. Sp. PL, 
edit. 1 (1753) ; Benth. & Hook, f. Gen. PI. il. p. 697 (Rawwoljia). 
1. R. caffra Sonder in Linnea xxiii. p. 77 (1850) (Rawwolfia). 
Var. natalensis Stapf ms. 
R. inebrians K. Schum. in Eng. Pfl. Ost-Afr., C, p. 318 (1895) 
(Rauwolfia). R. natalensis Sonder, /.c., p. 78. 
Punco ANDONGO,—A notable ne 25 to 35 ft. high, 12 to 15 in. 
in diameter of its trunk, with the habit almost of Mango, milky ; 
flowers whitish ; fruit obcordate, thick, greenish. By streams in the 
presidium, plentiful; fl. and young fr. Jan. and Feb. 1857; fr. 
Dec. 1856. No. 5951. 
4, PLEIOCARPA Benth. in Benth. & Hook. f. Gen. Pl. ii. p. 699. 
1. P. Welwitschii Stapf ms. in Herb. Kew. 
GoLuNnco A.LTo.—A tree, 10 to 18 ft. high; trunk 6 in. in diameter 
at the base, erect, as well as the branches exuding a whitish thick 
resinous milk which quickly coagulates into a kind of elastic gum ; 
branches patent, flexuous, elongated, as well as the branchlets thickened 
in a nodose manner at the insertion of the leaves; nodes with 3 
gibbosities or tubercles. Sometimes there are 4 tubercles in a whorl, 
each of them bearing a flower-bud; it thus appears that typically there 
are 4 leaves in the whorl, one of which however is almost always 
abortive. Leaves 33 to 7 in. long by 1; to 23 in. broad, elliptical, 
ternately or quaternately verticillate or “opposite, rigidly coriaceous, 
shining; petioles ascending-recurved, thick, semi-cylindrical, trans- 
versely rugose or rather sulcate in an annular manner, the furrows 
rather deep, almost like fissures; flowering branchlets longitudinally 
furrowed, verrucose ; flowers whitish, or white, turning to sulphur- 
yellow, small, 2 in. long, fasciculate a few together in very abbreviated 
axillary cymes; calyx small, scariously bracteolate at the base, fleshy, 
deeply 5-lobed ; the lobes imbricate in eestivation, ovate, very obtuse, 
sub-fimbriate on the membranous-hyaline margin, green ; corolla rather 
fleshy, salver-shaped, inserted about the ovary at the bottom of the 
calyx; the tube white, slender, but little narrowed at the middle, 
gradually widened into the 5-cleft deep sulphur-yellow limb; the 
segments ovate-subrotund, rather concave, sinistrorsely contorted (as 
seen from above) in westivation, spreading at the time of full flowering, 
much shorter than the tube; stamens 5, inserted on the corolla-tube 
a little below the throat, nearly included, very short; anthers ovate, 
obtuse, not appendaged, free, not adhering to the stigma, 2-celled, 
longitudinally dehiscing, yellow, large in proportion to the filaments ; 
disk or hypogynous glands none or obsolete or consisting of a thin 
viscid-shining cupuliform membrane surrounding the base of the 
ovary ; ovary ovoid, deeply bisulcate, separable into two parts or lobes, 
the lobes each uniloculate ; style elongated, filiform, reaching as high 
as the stamens, consisting of 2 concrete styles corresponding to the 
2 lobes of the ovary, easily parted, somewhat compressed; stigma 
terminal, narrowly clavate or ovoid-conical, obsoletely bilobed, easily 
dividing’ into two with the style; fruit baccate, obovoid-clavate or 
-pyriform, especially abounding in a resinous milk, fleshy, 2-lobed or 
2-celled, one cell abortive, the other 1- or 2-seeded; seeds peltate. In 
shady woods or at the outskirts of the primitive forest on the left bank 
of the river Cuango, rather rare; fl. June 1856; young fr. and fl.-bud 
beginning of Dec. 1855. No. 5981. 
