CONVOLVULACEZX. XIV. Iromaa. 
long, acuminated: the 2 outer ones rather the smallest. Y%.S. 
Native on the sandy banks of the Orinoco, near the cataract of 
Ature. Convólvulus Aturénsis, H. B. et Kunth, nov. gen. 
amer. 3. p. 96. Stem dichotomously branched ; branches terete. 
Corolla white, glabrous, 3 times longer than the calyx. Capsule 
globose, covered by the calyx, size ofa pea. 
Ature Ipomoea. Fl. March. PI. 14 foot. 
20 I. cAPILLA`CEA ; stems nearly simple, erect; leaves ses- 
sile, many-parted ; segments capillary, glabrous; flowers axil- 
lary, solitary, pedunculate, longer than the leaves; calyx 
smoothish; sepals ovate, acute, concave, rugose on the back, 
.unequal. 2/.S. Native of New Granada, in the temperate 
regions, betwixt Villa San Miguel and the river Putes, at the 
altitude of 800 hexapods. Convdélvulus capillaceus, H. B. et 
Kunth, nov. gen. 3. p. 97. Root tuberous, milky, turnip- 
formed. Plant smoothish. Corollas funnel-shaped, purple, 
glabrous. Perhaps a species of Leptocállis. 
Capillary-leaved Ipomoea. Pl. 1 foot. 
21 I. prrtora (R. Br. prod. p. 487.) tomentose; stem 
flexuous at the apex; leaves lanceolate, acute, quite entire, 
obtuse at the base; peduncles usually 2-flowered; sepals ovate, 
acuminated. 2/.? S. Native of New Holland, within the 
tropic, on the sea shore. I. diántha, Roem. et Schultes, syst. 4. 
p. 254. Conv. flexuósus, Spreng. syst. 1. p. 612. 
Two-flowered Ypomoea. Pl. erect. 
22 I. ere’cra (R. Br. l. c.) tomentose, erect ; leaves oblong- 
linear, obtuse, quite entire; peduncles usually 1-flowered ; 
sepals acute; capsule 6-valved. 2.S. Native of New Hol- 
land, within the tropic, on the sea shore. Conv. eréctus, 
Spreng. syst. 1. p. 612. 
Erect Ipomoea. Pl. erect. 
23 I. nzrEROPHY' LLA (R. Br. l. c.) plant annual, ascending, 
smoothish ; leaves oblong, semihastate, entire, obtuse, some- 
times pinnatifid at the base, and toothed at top; peduncles 
l-flowered, very short; sepals equal, lanceolate, acuminated. 
©. S. Native of New Holland, within the tropic, on the sea 
shore. Ipomoe‘a polymérpha, Roem. et Schultes, syst. 4. p. 
254. Convélvulus Brownii, Spreng. syst. 1. p. 612. 
Variable-leaved Ipomcea. PI. ascending. 
24 I. coNrE/RrA ; stems prostrate, diffuse; leaves cordate- 
sagittate, lanceolate, entire, acute; petioles scabrous; flowers 
nearly sessile, axillary, crowded; calyx hairy. ©. S. Native 
of Guinea, common in fields. | Corollas white. 
Cronded-flowered Ipomoea. Pl. prostrate. 
25 I. nu'wiLIs; roots creeping ; stem 3 inches high; leaves 
linear-lanceolate, or lanceolate, obtuse, thick, entire, glabrous, 
petiolate ; peduncles terminal and axillary, elongated, 1-flow- 
ered. 2.8. Native of Sierra Leone, and along the coast of 
Guinea, on the sea shore. Corollas large, pale red. Habit of 
Calystégia soldanélla. 
Humble Ipomea. Pl. 1 foot. 
26 I. ovALIFÓLIA (Choisy, l. c. p. 449.) stem erect or pros- 
trate, suffruticose ; leaves oval-oblong, acute at the base, 
obtuse at the apex, and emarginate, on short petioles; pedun- 
cles 3-7-flowered ; sepals unequal. h. S. Native of the 
East Indies and Sandwich Islands. Convélvulus ovalifolius, 
Vahl, eclog. 2. p. 16. Hook. et Arn. in Beech. voy. pt. bot. p. 
90. Ip. microphylla, Roth. nov. spec. p. 112. Conv. parvifo- 
lius, Spreng. syst. 1. p. 611.? Stems terete. Leaves an inch 
long, and 5 lines broad. Peduncles twice as long as the petioles. 
The 3 exterior sepals ovate, bluntish : the 2 interior smaller, 
linear, acute. Corolla glabrous. 
Var. a; glabra (Choisy, l. c.) stem, leaves, calyxes, and pe- 
duncles, quite glabrous. 
Var. B, pubéscens (Choisy, l. c.) all parts of the plant are 
267 
ciliated with long hairs. ^h. S. Native of the Sandwich 
Islands, Guinea, and Angola. 
Var. y, tomentosa (Choisy, l. c.) every part of the plant is of 
a yellow colour, from intricate, simple, adpressed hairs. h. S. 
Native of the Sandwich Islands, Guinea, and Angola. 
Oval-leaved Ipomoea. Shrub erect. 
* * Shrubby or arboreous plants. 
27 I. arBore’scens; arboreous; leaves ovate-cordate, acute, 
clothed with hoary tomentum on both surfaces ; peduncles many- 
flowered ; calyx clothed with white wool outside ; sepals oblong, 
obtuse, concave, unequal: outer ones the broadest; seeds 
woolly on the angles. h.S. Native of Mexico, on the western 
declivities of the mountains betwixt Acaguisotla and Chilpan- 
cingo, at the altitude of 600 hexapods, where it is called Guau- 
saguate. Convdélvulus arboréscens, Willd. enum. 1. p. 204. 
Lactescent. Pedicels tomentose. Corolla glabrous, white, purple 
inside at the throat. 
Arborescent Ipomoca. Tree large. 
28 I. macra’nrHa; arboreous ; leaves oblong-lanceolate, 
acuminated, rounded at the base, glabrous; flowers axillary, 
solitary, pedunculate; calyx clothed with white wool; sepals 
unequal, oblong, rounded at apex, concave : outer ones broadest. 
hk. S. Native of Mexico, near Guanaxuato and Santa Rosa, 
at the altitude of 1100 feet. Convélvulus macránthus, H. B. et 
Kunth, nov. gen. 3. p. 95. Branches angular, clothed with white 
tomentum while young, as well as the peduncles. Corolla white, 
woolly outside. 
Large-flowered Ipomeea. Tree. 
29 I.srnPYLLIFOLIA; shrubby; leaves ovate-elliptic, rounded 
at the apex, rather downy ; axillary peduncles 1-flowered : ter- 
minal ones 2-flowered, exceeding the leaves; calyx smoothish ; 
sepals ovate, acuminately-mucronate, rather concave, nearly 
equal, with incumbent edges. h.S. Native of New Spain, in 
temperate places, near Moran and Regla, at an altitude of 1250 
hexapods. Convélvulus serpyllifolius, H. B. et Kunth, nov. 
gen. amer. 3. p. 95. Bark corky. Stems tufted, procumbent, 
slender, nearly terete, glabrous ; branchlets downy. Leaves 3 
lines long. Flowers white, about the size of those of Conval- 
lària majàlis, glabrous. Habit of Evólvulus nummulàrius. 
Wild Thyme-leaved Ipomcea. Shrub procumbent. 
30 I. nupERA'RIA; shrubby; leaves lanceolate-oblong, re- 
tuse at the apex, and mucronate, downy ; peduncles axillary, 
usually 3-flowered, twice shorter than the leaves; calyx gla- 
brous; sepals roundish, acute: the 2 outer ones rather the 
shortest. h.S. Native of Cuba, among rubbish, near Ha- 
vannah. Convólvulus ruderàrius, H. B. et Kunth, nov. gen. 3. 
p. 96. Shrub prostrate; branches terete, downy when young. 
Leaves 8-9 lines long. Flowers a little larger than those ot 
I. serpyllifolia. Corolla 3 times longer than the calyx. 
Rubbish Ipomoea. Shrub prostrate. 
31 I. FLORIBUNDA; shrubby, clothed with hoary tomentum ; 
leaves ovate-oblong, acuminately-mucronate, cordate; corymbs 
axillary, pedunculate, shorter than the leaves; calyx clothed 
with woolly tomentum; sepals oblong, bluntish, concave: the 
3 outer ones the largest. bh. S. Native on the banks of the 
river Amazon, on hills near Tomependa. Convélvulus floribün- 
dus, H. B. et Kunth, nov. gen. 3. p. 96. t. 210. Shrub much 
branched; branches terete. Leaves on long petioles, 2 inches 
long. Corolla 4 times longer than the calyx, obsoletely 5-lobed, 
glabrous, blue, size of those of Falkia repens. 
Bundle-flowered Ipomcea. Shrub 3-4 feet. 
32 I. sta’ns (Cav. icon. 3. p. 26. t. 250.) suffruticose ; leaves 
M m 2 
