268 
ovate, or oblong-lanceolate, sinuately-toothed, smoothish ; 
flowers axillary, solitary, pedunculate, longer than the leaves; 
calyx glabrous, sepals unequal, linear, obtuse. h.S. Native 
of Mexico, near Guanaxuato.  Convólvulus stáns, H. B. et 
Kunth, nov. gen. amer. 3. p. 96. Conv. firmus, Spreng. syst. 
1. p. 613. Corolla campanulate, pale violet, with a whitish 
tube and rounded segments. 
Standing Ipomcea. Shrub erect. 
33 I. eAxNOsA (R.Br. l. c.) tomentose, suffruticose, erectish ; 
leaves quite entire, oblong, bluntish, pannosely tomentose ; pe- 
duncles 1-flowered; sepals acuminated: the 2 inner ones one 
half smaller than the outer ones. b. S. Native of New Hol- 
land, within the tropic, on the sea shore. Convélvulus pannó- 
sus, Spreng. syst. 1. p. 612. 
Cloth-leaved Ipomoea. Shrub erect. 
34 I. ritrrézius (Hook. et Arn. in Beech. voy. pt. bot. p. 
35. under Convólvulus) shrubby, much branched, diffuse ; leaves 
very narrow-linear, terete; flowers axillary, solitary, on short 
peduncles ; corolla campanulate. h. G. Native of Chili, at 
Coquimbo. Calyx 5-cleft; with linear teeth on the segments. 
Corolla blue, an inch broad. 
Thread-leaved Ipomcea. Shrub diffuse. 
Sect. III. Srropuiroma‘a (from ozpogaw, strophao, to turn 
or twist; and Jpome‘a; in reference to the twining stems of 
the species). Choisy, in mem. soc. phys. gen. 6. p. 450. Stems 
twining. 
§ 1. Leaves entire, undivided, usually cordate. 
Capsules gene- 
rally large. 
Anthers usually twisted. 
* Stems angular or winged. 
35 I. TunPE HUM (R. Br. prod. p. 485.) stems angular, gla- 
brous, or a little downy ; leaves cordate-ovate, acuminated, some- 
times entire, sometimes angularly sinuated, or crenated ; peduncles 
thick, 1-4-flowered, bracteate at apex ; outer sepals the largest, 
ovate-roundish. 24. ^^. S. Native of the East Indies, on the 
banks of the Hoogly and Ganges; New Holland; Timor; 
Otaheite; Friendly and Marianne Islands, &c. Ker. bot. reg. 
279. Roth. nov. spec. p. 111. Convélvulus Turpéthum, Lin. 
spec. p. 221. Blackw. t. 397. Sims, bot. mag. t. 2093. Wall. 
fl. ind. 2. p. 57. Hook. bot. misc. 3. p. 297. Wight, ill. suppl. 
t. 88. Conv. Gaudichaüdii and Riédlei, Choisy, mss.—Herm. 
lugdb. 177. t. 178. and 179. Conv. velutinus, Wall. cat. no. 
1371.—Plenck. off. t. 105. Root thick, purgative. Leaves 
nearly glabrous or downy. Corolla campanulate, twice longer 
than the calyx, white, size of those of Calystegia sépium. 
Capsule showy, size of a nut. The bark of the roots is em- 
ployed by the natives of the East Indies as a purgative, which 
they use fresh rubbed up with milk. About 6 inches in length 
of the root they reckon a dose. Cattle do not eat the plant. 
The root being free from nauseous taste and smell, gives it a 
decided superiority over jalap, for which it might be substi- 
tuted. — T'urpethum is derived from its Arabic name Turbib. 
Turpethum Ipomoea. Fl. March, June. Clt. 1752. Plant 
twining. 
36 I. ANcePs (Roem. et Schultes, syst. 4. p. 231.) stem 4- 
winged ; leaves cordate-oblong, somewhat sagittate or ovate, 
mucronulate at apex; peduncles 2-5-flowered, bracteate at 
apex; sepals unequal: 2 outer ovate, villous outside: the 3 
inner smaller, oblong. /.^. S. Native of Bengal, Ceylon, 
Java, &c. Convélvulus anceps, Lin. mant. p.43. Vahl, symb. 
3. p. 31.  Peduncles and pedicels villous. Capsule large. 
Two-edged-stemmed Ipomeea. Pl. tw. 
CONVOLVULACEJE. XIV. Ipomea. 
37 I. rr’quetra (Reem. et Schultes, syst. 4. p. 251.) stem 
downy, triquetrous ; leaves cordate, acute, rather villous; pe- 
duncles 2-5-flowered, bracteate; outer sepals bractea-formed, 
ovate, acute, mucronate: inner Ones shorter, and rounded at the 
apex. 2%. ^^. S. Native of the Islands of Santa Cruz, St. 
Thomas, &c. Conv. triquetra, Vahl. symb. 3. p. 30. Willd. 
spec. l. p. 858. Lateral pedicels 2-flowered, middle one i- 
flowered. Bracteas ovate, coloured, downy. 
Triquetrous-stemmed Ipomoea. Pl. tw. 
38 Hamitronu; stems a little winged ; leaves scattered, recurv- 
ed, petiolate, cordate-ovate, acuminated, veiny, concave; pedun- 
cles usually 1-flowered, at first terete, afterwards 4-winged, and 
at length 5-angled ; bracteas sessile, lanceolate, acuminated, a 
little coloured, nearly opposite; flowers large, yellow. 2. 
S. Native of Tobago, near the town of Scarborough. Conv. 
alàtus, Hamilt. prod. p. 24. ‘This species is said to come nearest 
I. ánceps, and Conv. flavus. 
Hamilton’s Ipomoea. Pl. tw. 
* * Stems terete. 
39 I. caMPANULA' TA (Lin. spec. 228. Lour. coch. p. 112.) 
leaves cordate, acute; peduncles many-flowered, spicately 
branched; sepals equal, ovate-orbicular, glabrous. 4. ^. S, 
Native of the East Indies, Timor, Cochin-china, &c. Convél- 
vulus campanulàtus, Spreng. syst. 1. p. 608. Adámboe, Rheed. 
mal. 11. p. 115. t. 56. Stem reddish, glabrous, terete, densely 
branched, fistular. Leaves glabrous, reticulated with red-fea- 
thered nerves, 4-6 inches long, and 1-3 broad. Corolla large, 
yellow, ex Lour. Capsule large, globose, glabrous. Seeds 
clothed with silky villi. 
Campanulate-flowered Ipomoea. Fl. Aug. Sept. Clt. 1800. 
Pl. tw. 
40 I. surPHvU' REA; glabrous? ; leaves cordately-sagittate, 
entire; peduncles 3-flowered, much longer than the petioles ; 
sepals glabrous, obtuse, adpressed; filaments villous at the 
base; anthers twisted into a spire. 2. ^. S. Native of 
Mexico, on walls at St. Jose de Corral. Convólvulus sulphü- 
reus, La Lave, et Lexarza, nov. veg. mex. fasc. l. p. 17. 
Calyx yellowish. Corolla sulphur-coloured, campanulate, with 
a 5-plicate limb: each plica composed of 2 roundish crena- 
tures. Capsule round, velvety, black. 
Sulphur-coloured-flowered Ipomoea. Fl. Feb. Pl. tw. 
41 I. reTAroípEA (Choisy, in mem. soc. phys. gen. 6. p. 451.) 
leaves sometimes saggittately-lanceolate, acute, with sinuated 
edges; sometimes linear, and .sometimes ovate; sometimes 
ovate-lanceolate; often hardly cordate; sometimes obtuse at 
the apex, and mucronulate; peduncles 1-4-flowered, bracteate, 
sometimes numerous, approximate, appearing like a 9- flowered 
peduncle; sepals ovate-orbicular; corolla 5-cleft. Yy. ^. S. 
Native of the East Indies ; at Prome; and Gorukpur ; as well 
as of Timor. Convélvulus crispátulus, Wall. cat. no. 1403. 
Conv. reticulàtus, Ham. herb. Stems terete, glabrous, branched. 
Leaves reticulately veined, 2-3 inches long, glabrous. Corolla 
3 times longer than the calyx, deeply divided, silky outside, 
red.—This is a very variable plant in the leaves. Capsule large, 
size of a nut. 
Petaloid Ipomcea. PI. tw. 
42 I. surazina (Choisy, in mem. soc. phys. gen. 6. p. 452.) 
leaves cordately sagittate, glabrous; peduncles many-flowered ; 
corolla yellow, campanulate. %.^. S. Native of Cochinchina, 
in woods. Convólvulus bufalinus, Lour. coch. p. 109. ed. 
Willd. 1 p. 134. Stem woody, scandent, glabrous. Corolla 
large, campanulate. Capsule large, 2-celled, 2-seeded. Anthers 
filiform, spirally twisted. 
