258 



CONVOLVULACEjE. V. HUMBERTIA. VI. MOORCROFTIA. VII. QUAMOCLIT. 



icon. ined. 1. p. 7. t. 7. Smithia, Gmel. syst. 1. p. 308. En- 

 drach, Flacourt, hist. mad. p. 137. t. 100. 



LIN. SYST. Pentdndria, Monogynia. Calyx of 5 sepals. 

 Corolla 5-cleft. Stamens exserted, deflexed. Ovarium one ; 

 stigma hollow, complanate. Capsule baccate, woody, 2-celled ; 

 cells 2-seeded. A tall tree, native of Madagascar. Branches 

 terete. Leaves obovate-lanceolate, quite entire, emarginate. 

 Peduncles 1-flowered, axillary, on the tops of the branches, 

 shorter than the leaves, furnished with 2 little teeth in the middle 

 of each. Flowers large, similar to those of other Convolvula- 

 ceous plants. 



1 H. MADAGASCAUIE'NSIS (Lam. diet. 2. p. 357.) ^ S. Na- 

 tive of Madagascar. Endrachium Madagascariense, Juss. et 

 Gmel. syst. 1. p. 339, exclusive of the syn. of Bruce. Pers. 

 ench. 1. p. 176. Thouinia spectabilis, Smith, icon. ined. 1. p. 

 7. t. 7. Smithia Thouinia, Gmel. syst. 1. p. 389. Humbertia 

 aeviternia, Commers. 



Madagascar Humbertia. Tree tall. 



Cult. For culture and propagation see Argyreia, p. 257. 



VI. MOORCRO'FTIA (named after William Moorcroft, a 

 gentleman in the service of the East India Company, who tra- 

 velled in Nipaul, and in the neighbouring countries to the north.) 

 Choisy, conv. in mem. soc. phys. gen. 6. p. 431. Convolvulus 

 species, Wall. Perhaps this genus is not distinct from Erysibe. 



LIN. SYST. Pentdndria, Monogynia. Calyx of 5 sepals. Co- 

 rolla unknown. Style one. Berry 1-seeded, 1-celled by abor- 

 tion, very rarely 2-celled. M. Pinangiana, from the baccate 

 fruit, is nearly allied to Argyreia ; but the habit and inflores- 

 cence are quite distinct. 



1 M. ADPRE'SSA (Choisy, 1. c.) stem hairy ; leaves ovate or 

 lanceolate, hairy on both surfaces ; peduncles brachiately corym- 

 bose, exceeding the petioles a little, 3-6-flowered ; sepals linear, 

 recurved at apex. ^ S. Native of Penang. Convolvulus 

 adpr<issus, Wall. cat. no. 1424. Leaves obtuse or acutish, 2-4 

 inches long, and 1-2 broad, pale beneath. Flowers hairy. Berry 

 usually 1-celled, 1-seeded. 



Adpressed Moorcroftia. Shrub. 



2 M. PINANGIA'NA (Choisy, 1. c. p. 432.) stem glabrous ; 

 leaves ovate-lanceolate, acuminated, quite glabrous on both 

 surfaces ; peduncles slender, much exceeding the petioles, loosely 

 4-8-flowered ; sepals cuneate-ovate, stiff, small. fj . f ^. S. 

 Native of Penang. Convolvulus Pinangianus, Wall. cat. no. 

 1425. Leaves 2-3 inches long, and 1^ to 2 broad, whitish be- 

 neath the nerves, sometimes furnished with a few adpressed 

 hairs. Outer sepals and corolla hairy outside. Berry 1-celled, 

 1-seeded. 



Pinang Moorcroftia. Shrub tw. 



Cult. For culture and propagation see Argyreia, p. 257. 



Tribe II. 



CONVOLVITLE IE (so called, because the genera contained 

 in the section agree with Convolvulus in the characters indicated 

 below.) Choisy, in mem. soc. phys. gen. 6. p. 433. Embryo 

 cotyledonous. Carpella combined into a single ovarium. Peri- 

 carp capsular, dehiscent. 



VII. QUA'MOCLIT (from wet/joe, kyamos, a kidney bean ; 

 and K\trog, klitos, dwarf; because it resembles the kidney bean 

 in its climbing stems, but is less tall.) Tourn. inst. 116. Mcench, 

 meth. Choisy, in mem. soc. phys. gen. 6. p. 433. Convolvulus 

 and Ipomce'a, species of authors. Calboa, Cav. icon. 5. p. 51. t. 

 476.- Macrostemma, Pers. ench. 1. p. 185. Exogonium, Moc. 

 et Sesse, ined. Mina and Morenoa, La Lav. et Lexar. 



LIN. SYST. Pentdndria, Monogynia. Calyx of 5 sepals, 

 which are usually mucronate on the back under the apices. 



Corolla tubularly cylindrical. Stamens exserted. Style one ; 

 stigma capitate, 2-lobed. Ovarium 4-celled ; cells 1-seeded. 

 Twining herbs, mostly natives of America. 



1 Q. PHOZNICEA (Choisy, in mem. soc. phys. gen. 6. p. 

 433.) leaves cordately reniform, with angularly toothed mar- 

 gins, sometimes 3-lobed ; lobes acute, with dentately sinuated 

 edges, glabrous on both surfaces ; peduncles many-flowered, 

 loosely spicate. . / ~ > . S. Native of the southern parts of the 

 Coromandel Coast, Moluccas, &*c. Ipomoe'a phcenicea, Roxb. 

 Wall. fl. ind. 2. p. 92. Convolvulus phceniceus, Spreng. 

 syst. 1. p. 596. Ipomoc'a angularis, Willd. act. am. N. C. 

 berol. 4. p. 197. Convolvulus angulatus, herb. Ham. Ipomoe'a 

 coccinea. Andr. hot. rep. t. 449. Plant glabrous. Leaves paler 

 beneath. Sepals awned. Flowers remote, of a beautiful bright 

 crimson colour ; tube 2 inches long. This is a very gaudy 

 plant ; no painter can do justice to the brightness of its 

 flowers. 



Crimson Quamoclit. Fl. June, Sept. Clt. 1806. PI. tw. 



2 Q. ANGULA'TA ; leaves cordate, angular, somewhat 3-lobed, 

 glabrous on both surfaces: upper ones entire, mucronate ; pe- 

 duncles many-flowered, racemose, usually dichotomous. Q. '"'. 

 S. Native of the Isle of France and Bourbon. Ipomce'a angu- 

 lata, Lam. ill. no. 2116. Poir. diet. 6. p. 12. Ipomoe'a dentata, 

 Willd. herb. Leaves large. Calycine segments narrow, acute. 

 Corolla scarlet, with a long tube ; lobes of limb ovate. Capsule 

 3-celled. 



/^ngu/ar-leaved Quamoclit. PI. tw. 



3 Q. RUIZIA'NA ; leaves cordately sagittate, acuminated, and 

 acute; peduncles usually 2-flowered. O- ^. S. Native of 

 Peru, in elevated, stony places, about Lima. Ipomos'a angulata, 

 Ort. dec. 7. p. 8. Ruiz, et Pav. fl. per. 2. p. 11. t. 120. f. b. 

 Ipomoe'a dubia, Room, et Schultes, syst. 4. p. 216. Leaves en- 

 tire; segments of calyx unequal, somewhat tubercled. Peduncles 

 1-3-5-flowered; bracteas ovate, dilated at top. Tube of corolla 

 long, slender, of a reddish copper colour ; limb short, spreading, 

 scarlet, with revolute edges. Capsule 3-4-celled. Perhaps a 

 variety of Q. coccinea. 



Ruiz's Quamoclit. PI. tw. 



4 Q. COCCINEA ; leaves cordate, acuminated, angular at the 

 base ; peduncles 3-6-flowered ; calyxes warted, awned. 0. '"'. 

 H. Native of St. Domingo, New Spain ; and of Carolina, at the 

 Mississippi. Ipomce'a coccinea, Lin. hort. ups. p. 39. spec. p. 

 163. Michx. fl. bor. amer. 1. p. 140. Curt. bot. mag. t. 

 221. St. Hil. 30. t. 6. Ipomoe'a stylosa, Comm. rar. t. 21. 

 Conv. coccineus, Spreng. syst. 1. p. 599. Plum. icon. 89. t. 

 103. Plant nearly glabrous. Leaves 3-4 inches long, and 2 

 broad. Tube of corolla long ; limb small, pale scarlet. Cap- 

 sule 3-4-celled. 



Var, /3, pubescent (Cham, et Schlecht. in Linnaea, 5. p. 118.) 

 leaves hastately-cordate, never 3-lobed ; hind lobes angularly- 

 toothed at the base, down dense, soft, adpressed. 0. ^. H. 

 Native of Mexico, near Hacienda de la Laguna. 



<$efl)Ve<-flowered Quamoclit. Fl. June, Sept. Clt. 1713. 

 PI. tw. 



5 Q. LUTE'OLA ; leaves cordate, acuminated, rather angular, 

 glabrous ; peduncles at first dichotomous, then racemose. 0. ^. 

 H. Native of Guatimala. Ipomoe'a luteola, Jacq. icon. rar. 1. 

 t. 35. coll. 2. p. 266. Willd. enum. 1. p. 207. Ipomce'a coc- 

 cinea, /3, Willd. spec. 1. p. 880. Conv. luteolus, Spreng. syst. 

 1, p. 599. Sepals lanceolate-linear. Corolla of an orange yellow 

 colour; limb acute, short. Perhaps only a variety of Q. coc- 



cinea. 



Yellow-fiowered Quamoclit. Fl. Ju. Sept. Clt. 1759. PI. 

 twining. 



6 Q. LEUCA'NTHA ; leaves cordate, bluntly acuminated, gla- 

 brous ; flowers solitary ; calyx rather hairy, bractless ; corolla 



