386 LXXXV, ASCLEPIADEE (BROWN). [ Demia. 
pendulous, solitary in each anther-cell, compressed, attached in pairs to 
the pollen-carriers by their tapering ends, without caudicles.  Follicles 
lanceolate, echinate or smooth. Seeds crowned with a tuft of hairs.— 
Twiners, with opposite cordate leaves, and sublateral pedunculate 
corymbs or racemes of moderate-sized flowers. 
Species 4, of which 2 extend through Arabia and Syria into India, 2 occur in 
South Africa, and 1 in Madagascar. 
Leaves densely but minutely tomentose on both sides ; 
inflorescence (including the peduncle) 1-2 in. 
long : - : ¢ : 
Leaves glabrous or pubescent, not tomentose ; in- 
florescence (including the peduncle) 2-16 in. 
long. 
Corolla-tube about half as long as the lobes or 
less ; spur of the inner coronal-lobes arising 
3-3 lin. above the base of the staminal- 
column. 
Stem glabrous or finely puberulous ; leaves 
somewhat fleshy . : : : . 2. D. garipensis. 
Stem with a pubescence of long and short hairs, 
or somewhat hispid; leaves thin, not 
fleshy . i ‘ i ; : . 3. D. extensa. 
Corolla-tube % to as long as the lobes; spur of 
inner coronal-lobes arising 1-14 lin. above 
the base of the staminal-column . 2 . 4. D. barbata. 
1. D. cordata. 
1. D. cordata, R. Br. in Mem. Wern. Soc. i. 50. Stems shortly 
tomentose, with or without a mixture of long hairs, sometimes slightly 
hispid. Leaves deflexed; petiole 1-3 in. long; blade 4-1} in. long, 
5 lin. to 14 in. broad, cordate-orbicular or cordate-ovate, apiculate or 
shortly cuspidate, rather thick, tomentose on both sides. Flowers in a 
corymb-like raceme, which (including the peduncle) is 1-2 in. long, 
tomentose or shortly and softly hairy, as are also the 4-1 in. long 
pedicels, and the 1-2 lin. long ovate acute sepals. Corolla-tube 13-2 
lin. long; lobes 3-3 lin. long, oblong-ovate, acute, bearded along their 
margins. Outer and inner coronal-lobes as in D. extensa, except that 
the inner coronal-lobes rarely exceed 24 lin. in length and have a shorter 
spur, which is about 4 lin. long. Follicles 14-24 in. long, ovoid, 
acuminate into a beak, more or less echinate, sometimes nearly smooth, 
minutely tomentose. Seeds } in. long, } in.. broad, nearly flat, ovate, 
margined, minutely tomentose on both sides.—Decne. in DC. Prod. vil. 
d44. D. incana, Decne. in Ann. Sv. Nat. 2 sér., ix. 336. D. tomen- 
tosa, Pomel, Nouv. Mat. Fl. Atl. 82; Vatke in Oest. Bot. Zeitschr. 
1876, 146; K. Schum. in Engl. & Prantl, Pflanzenfam. iv. ii. 258. 
Pergularia tomentosa, Linn. Mant. i. 53.  Asclepias cordata, Forsk. 
Flor. Aigypt.-Arab. 49. 
Nile Land. Nubia: Sea-coast to between 3000 and 4000 ft., Bent’ 
Danakil; near Fridelio, Hildebrandt, 7344 (ex Vatke). 
Common in North Africa, and extends through Arabia and Syria into Beluchistan. 
Very similar to D. extensa, but with smaller leaves and a shorter inflorescence. 
The flowers appear to be purple-brown. 
