CONVOLVULACE.E. XIV. IPOMO-A. 



267 



long, acuminated : the 2 outer ones rather the smallest. Tl . S. 

 Native on the sandy banks of the Orinoco, near the cataract of 

 Ature. Convolvulus Aturensis, H. B. et Kunth, nov. gen. 

 amer. 3. p. 96. Stem dichotomou>ly branched ; branches terete. 

 Corolla white, glabrous, 3 times longer than the calyx. Capsule 

 globose, covered by the calyx, size of a pea. 

 Ature Ipomoea. Fl. March. PI. ll 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. I/ . S. Native of New Granada, in the temperate 

 regions, betwixt Villa San Miguel and the river Putes, at the 

 altitude of 800 hexapods. Convolvulus 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 Leptocdllis. 



Capillary-leaved Ipomoea. PI. 1 foot. 



21 I. BIFLORA (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. If. . ? S. Native of New Holland, within, the 

 tropic, on the sea shore. I. diantha, Kcem. et Schultes, syst. 4. 

 p. 254. Conv. flexuosus, Spreng. syst. 1. p. 612. 



Ticojlorrered Ipomoea. PI. erect. 



22 I. ERE'CTA (R. Br. 1. c.) tomentose, erect ; leaves oblong- 

 linear, obtuse, quite entire ; peduncles usually 1- flowered ; 

 sepals acute ; capsule 6-valved. I/ . S. Native of New Hol- 

 land, within the tropic, on the sea shore. Conv. erectus, 

 Spreng. syst. 1. p. 612. 



Erect Ipomoea. PI. erect. 



23 I. HETEROPHY'LLA (R. Br. 1. c.) plant annual, ascending, 

 smoothish ; leaves oblong, semihastate, entire, obtuse, some- 

 times pinnatifid at the base, and toothed at top; peduncles 

 1-flowered, very short; sepals equal, lanceolate, acuminated. 

 Q. S. Native of New Holland, within the tropic, on the sea 

 shore. Ipomoe'a polymorpha, Roam, et Schultes, syst. 4. p. 

 254. Convolvulus Brownii, Spreng. syst. 1. p. 612. 



Variable-leaded Ipomoea. PI. ascending. 



24 I. COXFE'RTA ; stems prostrate, diffuse ; leaves cordate- 

 sagittate, lanceolate, entire, acute ; petioles scabrous ; flowers 

 nearly sessile, axillary, crowded; calyx hairy. Q. S. Native 

 of Guinea, common in fields. Corollas white. 



Crowded-flowered Ipomoea. PI. prostrate. 



25 I. HU'MILIS ; roots creeping ; stem 3 inches high ; leaves 

 linear-lanceolate, or lanceolate, obtuse, thick, entire, glabrous, 

 petiolate ; peduncles terminal and axillary, elongated, 1-flow- 

 ered. I/ . S. Native of Sierra Leone, and along die coast of 

 Guinea, on the sea shore. Corollas large, pale red. Habit of 

 Calystegia soldanella. 



Humble Ipomoaa. PI. | foot. 



26 I. OVALIFOLIA (Choisy, 1. 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. 1? . S. Native of the 

 East Indies and Sandwich Islands. Convolvulus ovalifolius, 

 Vahl, eclog. 2. p. 16. Hook, et Am. 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. 



Far. a ; glabra (Choisy, 1. c.) stem, leaves, calyxes, and pe- 

 duncles, quite glabrous. 



Var. ft, pubescent (Choisy, 1. c.) all parts of the plant are 



ciliated with long hairs. ^ . S. Native of the Sandwich 

 Islands, Guinea, and Angola. 



Var. y, tomentosa (Choisy, 1. c.) every part of the plant is of 

 a yellow colour, from intricate, simple, adpressed hairs. Jj . S. 

 Native of the Sandwich Islands, Guinea, and Angola. 



Oval-leaced Ipomoea. Shrub erect. 



* * Shrubby or arboreous plants. 



27 I. ARBORE'SCEKS ; arboreous ; leaves ovate-cordate, acute, 

 clothed with hoary tomentum on both surfaces ; peduncles many- 

 flowered ; calvx clothed with white wool outside ; sepals oblong, 

 obtuse, concave, unequal : outer ones the broadest ; seeds 

 woolly on the angles. ^ . S. Native of Mexico, on the western 

 declivities of the mountains betnixt Acaguisotla and Chilpan- 

 cingo, at the altitude of 600 hexapods, where it is called Guau- 

 saguate. Convolvulus arborescens, Willd. enum. 1. p. 204. 

 Lactescent. Pedicels tomentose. Corolla glabrous, white, purple 

 inside at the throat. 



Arborescent Ipomoea. Tree large. 



28 I. MACRA'NTHA ; 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. 



I;. S. Native of Mexico, near Guanaxuato and Santa Rosa, 

 at the altitude of 1100 feet. Convolvulus macranthus, 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-Jlomered Ipomcea. Tree. 



29 I. SERPYLLIFOLIA; 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. fj . S. Native of New Spain, in 

 temperate places, near Moran and Regla, at an altitude of 1250 

 hexapods. Convolvulus serpyllifolius, H. B. et Kunth, nov. 

 gen. amer. 3. p. 95. Bark corky. Stems tufted, procumbent, 

 slender, nearly terete, glabrous ; branchlets downy. Leaves S 

 lines long. Flowers white, about the size of those of Conral- 

 laria majaiis, glabrous. Habit of Ecolrulus nummulariu*. 



IFUd Thyme-leaved Ipomcea. Shrub procumbent. 



30 I. RUDERA'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, fj . S. Native of Cuba, among rubbish, near Ha- 

 vannah. Convolvulus ruderarius, 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 01 

 /. serpyllifblia. Corolla 3 times longer than the calyx. 



Rubbish Ipomoea. Shrub prostrate. 



31 I. FLORIBU'NDA ; 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. I? . S. Native on the banks of the 

 river Amazon, on hills near Tomependa. Convolvulus floribun- 

 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 Fdlkia repent. 



Bundle-fomered Ipomcea. Shrub 3-4 feet. 



32 I. STA'NS (Cav. icon. 3. p. 26. t. 250.) suffruticose ; leaves 

 M m 2 



