540 _ ASCLEPIADEZ (Brown). [Vacazzea. 
V. TACAZZEA, Deene. 
Calyx 5-partite. Corolla 5-lobed almost to the base, rotate; — 
lobes overlapping to the left and slightly twisted. Corona-lobes 9, 
arising from the corolla at or near the base of the staminal filaments 
and usually shortly adnate to them, alternating with the corolla- 
lobes, filiform, and simple, or linear and divided above into 2 or 3 
filiform segments. Stamens inserted at or near the base of the 
corolla; filaments free above and united at their base into a ring 
with 5 minute, subquadrate, emarginate or bifid, alternating lobules, 
or entirely free ; anthers attached at their base to the dilated part 
of the style, connivent in a cone, cohering at their tips, glabrous. 
Pollen granular; pollen-carrier more or less spathulate. Style 
shortly conical at the apex, shorter than the anthers. ollicles 
divergent. Seeds crowned with a tuft of hairs. 
Twining or erect shrubs, with milky juice; leaves opposite or whorled ; 
stipules usually represented by a transverse line (often with fleshy glands along 
it) connecting the petioles; flowers small, in axillary, paniculate, or corymbose 
cymes, often from both axils. 
Distris, Species about 15,2 in South Africa, the others in Tropical Africa. 
The genus Tacazzea is very closely related to Raphionacme and difficult to 
distinguish technically ; the chief points of difference are, that in Tacazzea the 
cymes are truly axillary and frequently produced from both axils, the united 
part of the corolla does not form a distinct campanuiate tube, and most species 
have 5 minute lobules alternating with and united to the base of the stamens ; 
the leaves also, of most but not all of the species, have small (fleshy ?) processes 
scattered along their midribs. . ; 
Leaves tomentose beneath ; corolla-lobes 2} lin. long (1) Kirkii. 
Leaves glabrous on both sides; corolla-lobes 4-5 lin. 
long... iss ies ass a ie ... (2) natalensis. 
1. T. Kirkii (N. E. Br. in Kew Bulletin, 1895, 248); stem 
twining, more or less tomentose ; leaves distant, spreading ; petiole 
2-]1 in. long; blade 14-4 in. long, 1-23 in. broad, varying from 
oblong to elliptic, obtuse, apiculate, or rarely acute, cordate or 
obtusely rounded at the base, subcoriaceous, glabrous above, whitish 
or greyish-tomentose beneath; panicles 2—4 in. long, more or less 
pubescent or subtomentose, or the branches subglabrate; braets 
1-12 lin. long, broadly ovate, acute, often with a few hairs down 
the back, ciliate; pedicels 14-4 lin. long, glabrous or nearly so; 
sepals 1 lin. long, broadly ovate, obtuse or acute, more or less hairy 
on the back; corolla glabrous; lobes 21 lin. long, oblong, obtuse ; 
corona-lobes 4 lin. long, filiform, sometimes bifid at the apex, erect, 
tortuous in the upper part, adnate at the base to the lower half of 
the staminal filaments, which are united with the alternating, 
shortly bifid lobules into a ring ; follicles 13-2 in. long, 33-4} lin. 
thick at the base, gradually tapering to a point, slightly reflexed, 
tomentose or softly pubescent. WV. H. Br. in Dyer, Fl. Trop. Afr. 
iv. i. 268. 1. Welwitschii, Schlechter in Journ. Bot, 1896, 314, 
not of Baill. Leptopxtia, Harv. Gen. South Afr. Pl. ed. 2, 231. 
