Rcmvolfai] Lxxxii. APocYNACE.i:. GG;j 



3. RAUVOLFIA Plum. Gen. p. 19, t. 40 (170:5), L. 8p. PL, 

 €dit. 1 (1753) ; UenUi. & Hook. f. Gen. PI. ii. p. G97 {liauwo/fia). 



\. R. caffra Sondcr in Liinuea xxiii. p. 77 (1850) [lianiroJJia). 



\:iv. natalensis Stapf ms. 



R. inebrians K. Schum. in Eng. Pfl. O.^t-Afr., C, p. 318 (1895) 

 {Rauiooljut). R. natalensis Sonder, I.e., p. 78. 



PUNGO Andonok. — A notable tree, 'lb to 3.") ft. high, 12 to l.o in. 

 in diameter of its trunk, with the habit almost of ^Mango, milky ; 

 Hovvers whitish ; fruit obcordate, thick, greenish. By streams in the 

 priesidinm, plentiful ; H. and young fr. Jan. and Feb. 1^57 ; fr. 

 Dec. IH.'^O. No. 5951. 



4. PLEIOCARPA Benth. in Benth. & Hook. f. Gen. PI. Li. p. 099. 

 1. P. Welwitschii Stapf ms. in Herb. Kew. 



GoLUNOo Alto. — A tree, 10 to 18 ft. high ; trunk (1 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, Hexuous, 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 dower-bud ; it thus appears that typically there 

 are 4 leaves in the whorl, one of which however is almost always 

 abortive. Leaves 3A to 7 in. long by 1:^ to 2| 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, ^ 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 aistivation, ovate, very obtuse, 

 sub-fimbriateon 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 i^stivation, 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 1S5G ; young f r. and fl.-bud 

 beginning of Dec. IS;").'). No. 5981. 



