ASCLEPIADEZE. LXXVII. Hemivesmus. 
about one half shorter than the corolla. This genus is allied 
to both Secamóne and Toxocdrpus, but differs from both in the 
structure of the corona, as also in habit. Brown’s character of 
Secamóne was probably intended to include all three genera. 
1 G. acumina‘tum (Wight, l. c.). kh. ^. S. Native of 
Silhet. Wall. ascl. no. 127. unnamed. 
Acuminated-leaved Goniostemma. Shrub tw. 
Cult. For culture and propagation see Perguldria, p. 133. 
Tribe V. 
PERIPLO'CE/E (this tribe contains genera agreeing with 
Periploca in particular characters). R. Br. in mem. wern. soc. 
1. p. 56. Wight and Arnott, contrib. ind. bot. p. 62. Pollen 
masses 5-20, granular, fixed singly, or by fours, to a dilated 
appendage, composed of 2 combined ones, which rises from 
the top of each corpuscle of the stigma, but are at length 
applied to it. Filaments partly or altogether distinct. Anthers 
conniving, in the manner of a cupola, over the stigma.—In all 
the genera of this tribe, examined by Wight and Arnott, (ex- 
cept perhaps Cryptostégia) the corpuscle is dilated at the base 
into a kind of gland, similar to those found at the base of the 
pollen masses of an O'rchis; and in all, with the above excep- 
tion, both the corpuscle and its appendage are at length readily 
detached from the stigma. 
LXXVII. HEMIDE'/SMUS (from juve, hemisus, half, and 
decpoc, desmos, a tie ; filaments joined at base and free at apex). 
R. Br. in mem. wern. soc. 1. p. 56. Wight and Arnott, contrib. 
ind. bot. p. 62. —Períploca species, Lin. 
Lin. syst. — Pentándria,, Digiínia. Corolla rotate; having 
5 mutic scales inserted under the recesses between the segments. 
Filaments connate at the base, distinct at top, inserted in the 
tube. Anthers cohering, free from the stigma, beardless, sim- 
ple at top. Pollen masses 20, granular, applied by fours to the 
reniform, solitary, appendage of each corpuscle. Stigma flat- 
tish, peltate, mutic. Follicles cylindrical, divaricate, smooth. 
Seeds comose.—Twining shrubs. Leaves opposite, shining 
above. Cymes interpetiolar. Flowers small.  Corollas be- 
tween coriaceous and fleshy. The pollen masses are 4 to each 
anther; these remain for some time in their cells, but at length 
adhere to a viscid dilated corpuscular appendage. 
1 H. V’nvrcus (R. Br. in hort. kew. 2. p. 75.) glabrous ; 
leaves from cordate-ovate, cuspidate, to narrow-linear, acute, 
usually oblong-lanceolate ; cymes usually almost sessile, but 
sometimes pedunculate ; scales of corolla adhering to the tube 
from the base to the apex ; follicles slender, straight. h.%.S. 
Native every where in the peninsula of India, among bushes. 
Wall. ascl. no. 104. 105. Wight, cat. 1562. Periploca Indica, 
Willd. spec. 1. p. 1251. Roxb. mus. ind. orient. t. 212. As- 
clépias pseudosársa, Roxb. fl. ind. 2. p. 39. exclusive of many 
synonymes.—Rheed. mal. 10. t. 34.— Burm. zeyl. p. 187. t. 83. 
f. 1.—Pluk. t. 359. f. 2. (with broad leaves) and t. 361. f. J. 
(with narrow leaves). This is a very polymorphous plant, 
varying much in shape, and size of the leaves; and when the 
varieties are better known may hereafter form several species. 
Indian Hemidesmus. Cit. 1796. Shrub. tw. 
2 H. puse’scens (Wight and Arnott, contrib. ind. bot. p. 63.) 
branchlets slender, clothed with hairy pubescence ; leaves lan- 
ceolate, acute, downy as well as the peduncles and calyxes; 
cymes sessile; scales of corolla fixed to the tube. bh. ^. S. 
Native of the East Indies, at Vandalore. Wall. ascl. no. 105. 
cl. unnamed. Wight, cat. no. 1563, 
Donny Hemidesmus. Shrub tw. 
8 H. Warzicnur (Wight, l. c.) glabrous ; leaves narrow linear- 
lanceolate, acute; cymes few-flowered; scales of corolla subu- 
late, free from the tube, but cohering with the base of the fila- 
VOL. IV. 
LXXVIII. Bracuytetis. 
LXXIX. Srrerrocauton. 161 
ments. ).%.S. Native on hills, about Prome. Wall. cat 
no. 106. unnamed. 
Wallich’s Hemidesmus. 
Cult. 
Shrub tw. 
For culture and propagation see Pergulària, p.183. 
LXXVIII..BRACHY'LEPIS (from Boayuc, brachys, short, 
and dec, lepis, a scale; in reference to the 5 short truncate 
scales in the throat of the corolla). Wight and Arnott, contrib. 
ind. bot. p. 63. 
Lin. syst.  Pentándria, Digjnia. Corolla subrotate, 5- 
parted; segments spreading ; scales in the throat 5, short, 
truncate, flat, mutic; tube short, fully clothed by a broad, 
fleshy, adnate ring inside. Filaments very short, broad, distinct, 
inserted in the upper part of the throat along with the scales ; 
anthers glued by the base to the margin of the stigma, simple 
and cohering at top, the rest distinct and beardless. Pollen 
masses 20, granular, applied by fours to the dilated loose ap- 
pendage of each corpuscle. Stigma mutic. Follicles divari- 
cate, cylindrical, smooth.—A twining shrub; branches downy. 
Leaves opposite, oval, abruptly acuminated, rather downy while 
young, glabrous in the adult state, and shining above, parallelly 
nerved beneath. Cymes interpetiolar, small, tomentose, shorter 
than the leaves. Flowers small, crowded. Corolla hairy out- 
side, glabrous inside, subrotate ; segments spreading; or the 
corolla is subcampanulate. 
1 B. nervosa (Wight and Arnott, l.c.). h. ^^. G. Native 
of the Neelgherries.— Wight, cat. no. 1565.  Streptocaülon 
nervósum, Wight, mss.— Wall. ascl. no. 107. unnamed. 
Nerved-leaved Brachylepis. Shrub tw. 
Cult. For culture and propagation see Pergularia, p. 138. 
LXXIX. STREPTOCAU'LON (from aerpezroc, streptos, 
twisted, and kavdoc, kaulos, a stem; stems twisted). Wight 
and Arnott, contrib. ind. bot. p. 64.— Períploca species, Wall. 
asc]. 
Lin. syst.  Pentándria, Digy'nia. Corolla rotate, 5-parted ; 
throat crowned by 5 short scales, which alternate with the 
segments, aristate ; awns flexuously erect, filiform, straight at 
the apex. Filaments distinct, inserted in the tube; anthers 
adhering by the base to the margin of the stigma, free above, 
simple and beardless at the apex. Pollen masses granular, soli- 
tary (or composed of 4 confluent ones), applied to the dilated 
loose appendage of each corpuscle. Stigma mutic.  Follicles 
cylindrical, divaricate, smooth. Seeds comose.—T wining, or 
rarely decumbent plants, usually downy or tomentose, rarely 
glabrous. leaves opposite. Cymes interpetiolar, usually 
spreadiug, and much branched. Flowers small. This genus 
is intermediate between Periploca, as limited by Mr. Brown, 
and his Gymnéma. It differs from Periploca in the beardless 
anthers, which character is laid particular stress on by most 
authors. It differs from Gymnanthéra in several respects, by 
the stigma, pollen masses, and shape of corolla, and its scales. 
Perhaps most of Poiret's species of Periploca belong to this 
genus. What his P. Mauritiàna maybe it is impossible to say, 
as the synonymes adduced are very different from each other ; 
thus Plukn. t. 336. f. 7. is Tyléphora asthinática; and Rheed. 
mal. 9. t. 11. is Cryptólepis Buchanani, Roem. et Schultes. 
1 S. rouENTOsuM (Wight, contrib. ind. bot. p. 64.) branches 
pubescent; leaves obovate-lanceolate, acuminated, somewhat 
cordate at the base, hispid above and tomentose beneath ; cymes 
large, diffuse; flowers on short pedicels, crowded on the tops 
of the branches ; calyx and pedicels densely clothed with down; 
filaments very short. A. ^. S. Native of mount Taong 
Dong, near Ava; and of Cochinchina. Periploca tomentósa, 
Wall. ascl. no. 125. and no. 126. 
Tomentose Streptocaulon. Shrub tw. 
