48 XCV. ASCLEPIADEE. (J.D. Hooker.) [Heferostemma. 
Western PrNINSULA ; the Carnatic, in sandy places, Wight. « . 
Leaves very variable, 3-5 by 13-3 in. tip usually rounded and apiculate. 
Cymes usually sessile, flowers i in. diam.; coronal processes with an erect acute 
appendage. Follicles very slender, 4 in. long by 3-4 in. diam., glabrous. Seeds Y 
in. long narrowly ovate. 
Var. zeylanicum ; leaves acute or acuminate, flowers dark purple, appendages of 
the coronal processes larger obtuse or acute. H. tanjorense, Thwaites Enum. 198.— 
Ceylon, central province, ascending to 4000 ft. 
5. H. Dalzellii, Hook. f. ; branches glabrous or nearly so, leaves broadly 
or narrowly elliptic or ovate- or oblong-lanceolate acuminate, coronal processes 
spathulate without an appendage. H. Wallichii, Dalz. § Gibs. Bomb. Fl. 152 
(not of Wight). Heterostemma, sp. 2, Herb. Ind. Or. H. f. $ T. 
The Concan ; at Vingorla, and Malwan, Dalzell, Stocks. . 
Leaves as in H. tanjorense, of which this may be a variety, differing greatly in the 
corona, the lobes of which have no appendage proper, though there are traces of 
swellings at the bases in some specimens and at their backs in others, as if in the 
latter case the process was reduced and its appendage enlarged. In some specimens 
the apex is obscurely 3-lobed, in others the tip is subquadrate with a simple or bifid 
tip, and the sides acutely angled. The follicles appear shorter than in H. tanjorense, 
but they are not quite ripe in either species. 
4l. DITTOCERAS, Hook. f. Gen. Nov. 
A stout pubescent twining shrub. Leaves opposite, long petioled, elliptic- 
ovate, acute. Flowers large, in sessile umbelliform few-fld. cymes. Sepa 
minute, ovate, obtuse, glandular within. Corolla rotate; lobes short, tri- 
angular, subacute, valvate in bud. Corona large, deeply 5-lobed, lying flat 
on the corolla, lobes orbicular-spathulate, with a minute boss at the base of 
each. Column depressed. Anthers minute, tips very short, incurved ; pollen- 
masses very minute, subglobose, sessile on the minute corpuscle, waxy, erect. 
Stigma pentagonal, included. Follicles sub-cylindric, obtuse, recurved, pericarp 
very thick fleshy, endocarp hard shining. Seeds very large, narrowly ovoid- 
oblong, compressed, winged at the rounded base; coma short. 
1. D. Andersoni, Hook. f. in Hook. Ic. Pl. t. 1422.  Heterostemma, 
sp. 6, Herb. Hook. f. & T. 
Smxm Hraraya, alt. 2-4000 ft.; J. D. H., T. Anderson, Clarke. 
Branches leaves beneath, petioles and pedicels rusty-pubescent. Leaves 4-5 by 
2-3 in., sometimes cordate, dark green, sparsely hairy above, nerves 4-5 pairs; 
petiole 13-2 in. Corolla 14 in. diam., sparsely hairy without, dark purple. Follicles 
4-5 in. long, by ł in. diam., green when ripe. Seeds 1l in. long, black, coma as long 
as the rest of the seed, hairs spreading and reflexed.—Closely allied to Heterostemma, 
but widely differing in the large flowers, follicles, and seeds. 
42. OIAN'THUS, Benth. 
Twining glabrous undershrubs, branches with two lines of pubescence. 
Leaves opposite. Cymes small, subsessile, few-fld. Sepals small, obtuse Of 
acute. Corolla ovoid-urceolate or disciform, mouth contracted; lobes 5, very 
short, broad, valvate. Coruna cupular, adnate to the column, spreading, fleshy, 
lobulate or toothed. Column minute, short, depressed ; anther-tips short, in- 
flexed; pollen-masses very minute, one in each cell, semi-ovate, compressed, 
inner margin pellucid, sessile, waxy, ascending. Stigma broadly conic, not ex- 
ceeding the anthers. 
