CONVOLVULACE. III. Arcyresa. 
mss.  Convolv. multiflórus, Heyne, herb. Conv. confértus, 
Ham. herb. Leaves 2-3 inches long, and 1 to 23 broad; the 
older leaves sometimes 6 inches long, and as much broad. Co- 
rola 6-9 lines long, pink-coloured, clothed with strigose hairs 
outside; lobes acute. Berry pea-formed, red. Flowers sessile 
on the branches of the peduncle. 
Bristly Argyreia. Fl. July, Aug. Clt. 1818, Shrub tw. 
25 A. muBicU'NDA (Choisy, l. c. p. 426.) downy; leaves 
roundish, hardly-cordate, obtuse, furnished with a few hairs 
above, tomentose beneath; peduncles stiff, exceeding the petioles, 
brachiately corymbose ; bracteas ovate or ovate-roundish; sepals 
unequal: outer ones the largest, ovate-roundish, very blunt: inner 
ones shorter and narrower; corolla small. 5.^.5. Native of 
the Burman Empire, on Mount Taong Dong. Convólvulus rubi- 
cündus, Wall. cat. no. 1409. Leaves rather silvery beneath, an 
inch long, and as much broad.  Peduncles tomentose. Corolla 
4-5 lines long, glabrous, silky outside; lobes acute. Flowers 
disposed loosely. 
Reddish-flowered Argyreia. Shrub twining. 
26 A. rouENTOsA (Choisy, l. c.) clothed with down; leaves 
ovate, obtuse at the base, bluntish at the apex, and mucro- 
nulate, smoothish above, but clothed with cinereous tomentum 
beneath ; peduncles very short, capitately many-flowered ; brac- 
teas ovate or ovate-orbicular, or ovate-lanceolate, repand ; sepals 
linear-lanceolate: outer ones the largest. 5 .^. S. Native of 
the Burman empire, on the banks of the Irawaddi. Convólvulus 
multibracteàtus, Wall. cat. no. 1408. 1. Leaves 2-3 inches 
long, and 1 to 13 broad. Corolla tubularly salver-shaped ; tube 
glabrous ; limb acute, silky outside. 
Var. B, cordàta (Choisy, l. c. p. 427.) leaves dilated at the 
base, and cordate, with a rather deep, very blunt recess. h. 
S. Native on the banks of the Irawaddi, and Lower Nipaul. 
Convólvulus ( cordàtus, Wall. mss. Conv. vestitus, Wall. cat. 
no. 1411. Berry pea-shaped. 
Tomentose Argyreia. Shrub twining. 
27 A. AccREGA'TA (Choisy, l. c. p. 427.) clothed with hoary 
tomentum; leaves ovate-cordate, glabrous above, but clothed 
with hoary tomentum beneath ; peduncles exceeding the petioles 
alittle; many-flowered ; flowers capitate; bracteas involucrating, 
ovate-orbicular, hoary ; sepals ovate, obtuse; corolla small. h. 
S. Native of Coromandel, Orissa, Ceylon, Mysore, Taong 
Dong, Ava, &c.  Lettsómia aggregata, Roxb. fl. ind. 2. p. 76. 
Convólvulus Orixénsis, Rottler, and Klein, mss. Conv. canés- 
cens ?, Roth, nov. spec. p. 107. Roem. et Schultes, syst. 4. p. 
274.? Conv. Héynii?, Spreng. syst. 1. p. 699. Ipomæ'a im- 
bricàta, Roth, nov. spec. p. 112. Roem et Schultes, syst. 4. p. 
249. Conv. imbricàtus, Spreng. syst. l. p. 613. Conv. aggre- 
gatus, Bot. gard. Conv. canéscens, Spreng. Leaves obtuse at 
top, sometimes sub-emarginate, 2-3 inches long, and about the 
same in breadth. Corolla campanulate, hardly longer than the 
calyx, red; lobes acute, villous outside, emarginate, ex Wall. 
Aggregate-flowered Argyreia. Shrub not tw. 
28 A. cymosa (Sweet, hort. brit. p. 289. Choisy, l. c. p. 428.) 
clothed with pruinose down; leaves roundish-cordate, or reni- 
formly-cordate, obtuse, terminated by a very short mucrone, 
glabrous on both surfaces, or clothed with pruinose down; pe- 
duncles equal in length to the leaves, as also exceeding them, 
leafy at top, and cymosely many-flowered ; bracteas ovate- 
roundish, obtuse, plicately recurved ; outer sepals like the brac- 
teas; inner sepals ovate-linear ; corolla showy. h. ^. S. Na- 
tive of Malabar, on the mountains.  Lettsómia cymósa, Roxb. 
fl. ind. 2. p. 82. Stems compressed. Leaves green, 1-2 inches 
long, and about the;same in breadth. Corolla tubularly funnel- 
shaped, villous outside, pale pink. Berry yellow, 1-4-seeded. 
Cymose-flowered Argyreia. Clt. 1823. Shrub twining. 
29 A. acura (Lour. coch. p. 135.) frutescent; leaves ovate, 
VOL. IV. 
IV. BrmxxwonrHia. V. Humpertia. 257 
subcordate, mucronate, clothed with silvery-silky down beneath, 
glabrous above; flowers numerous, disposed in loose, terminal 
panicles ; bracteas oblong, obtuse, clothed with hoary, silky 
down outside; outer sepals largest, ovate, bluntish : all clothed 
with hoary tomentum outside; corolla white, showy. h.™,S. 
Native of China. Argyréia festiva, Wall. pl. asiat. rar. 1. p. 68. 
t. 76. Leaves 4-5 inches long, and 3 to 31 broad. Panicle 
corymbose. Corolla an inch long, campanulate, much higher 
than the calyx; lobes lanceolate, obtuse, hairy, outside. Berry 
red. 
Acute Argyreia. Shrub tw. 
30 A. osrusiro'LIA (Lour. coch. p. 134. Choisy, l. c. p. 
429.) frutescent ; leaves ovate, obtuse, glabrous above, but clothed 
with silky down beneath; flowers disposed in loose, panicled 
corymbs ; bracteas linear-lanceolate ; flowers adpressed ; sepals 
oblong-linear, outer ones the largest. h. ^. S. Native of 
Cochinchina, in hedges. Stem clothed with velvety down. 
Leaves 2-4 inches long, and 1-2 broad, sometimes mucronulate. 
Corolla white. Berry red. 
Blunt-leaved Argyreia. Shrub twining. 
+ A species hardly knonn. 
31 A. arporea (Lour. coch. p. 135. Choisy, l. c. p. 430.) 
arboreous; leaves ovate, acute, wrinkled, entire, glabrous, re- 
flexed; racemes terminal; sepals inflated, red; corolla with a 
longish, filiform tube, and roundish segments. h.G. Native 
of Cochinchina, in woods. Stem 8 feet high, with spreading 
branches. Corolla white or yellow. Berry 4-celled, 1-seeded. 
Arboreous Argyreia, Shrub 8 feet. ; 
Cult. Argyrèia is a most splendid genus of plants, well worth 
the cultivator’s care. The greater number of the species are 
robust, extensive twiners or climbers, usually requiring more 
space to run than can well be spared for that purpose in any 
stove or hothouse, before they will flower; some of them, how- 
ever, as A. cuneifólia, being dwarfer plants, produce their 
elegant blossoms in abundance. All the species grow well in 
rich light soil, or a mixture of peat, loam, and sand; and cuttings 
root readily if planted in sand or mould, with a hand-glass placed 
over them, in a little bottom heat. 
IV, BLINKWO'RTHIA (named by Choisy, after Mr. Blink- 
worth, who collected numerous specimens of plants, around 
Rangoon, and transmitted them to Dr. Wallich.) Choisy, in 
mem. soc. phys. genev. 6. p. 430. t. 4. 
Lin. syst. — Pentándria, Monogijnia. Bracteas 3, forming 
an involucrum, and as if it were another calyx. Sepals 5. Co- 
rolla short, cylindrically urceolate. Style 1; stigma capitately 
2-lobed. Berry 1-seeded.—A shrub, allied to Zrgyréia ; but is 
distinguished from it, in the involucrum, corolla, and habit. 
1 B. rvcroipes (Choisy, l. c.) stem terete, villous ; leaves 
linear, obtuse, mucronulate, on very short petioles, glabrous 
above, and rather silky beneath ; peduncles short, 1-flowered ; 
sepals ovate-orbicular. h. ^.? S. Native on the banks of 
the Irawaddy, &c. Convólvulus lycioides, Wall, cat. no. 1390. 
Leaves 6-9 lines long, and 1-3 broad. Corolla a little longer 
than the calyx, 5-toothed at apex, blackish in the dried state, 
and glabrous. Berry girded by the calyx. 
Lycium-like Blinkworthia. Shrub tw.? 
Cult. For culture and propagation see Argyréia, above. 
V. HUMBERTIA (probably named after some individual 
of the name of Humbert.) Lam. dict. 2. p. 356. ill. t. 103, 
Choisy, conv. in. mem. soc. phys. gen. 6. p. 431.— Endràchium, 
Gmel. syst. veg. 1. p 339. Juss. gen. p. 133.— Thouínia, Smith, 
Lr 
