390 CONVOLVULACEA, 
obscure denticulatis, pedunculis quam folia longioribus 3—9-floris, sepalis late rotundatis 
emarginatis dorso longe cornutis, corolla lutea curvata tubo fauce constricto, limbo angusto. 
Herba volubilis, glabra (heterophylla ?), ramis gracilibus. Folia glabra vel interdum leviter puberula, 
longe petiolata, late cordata, acuminata, apiculata, margine undulata, remote et obsolete denti- 
culata, circiter 3 poll. diametro; petiolus circiter 6 poll. longus. Peduncult 3-9-flori, foliis 
longiores. Flores lutei, pedicellati, pedicellis nudis; sepala late rotundata, emarginata, dorso 
longe cornuta; corolla leviter curvata, 13-2 poll. longa, fauce tubi leviter constricta ; limbus 
angustus, 5-dentatus, recurvus; stamina stylusque longe exserta. Capsula matura a nobis 
non visa. 
GuaTEMALA, without locality (Salvin & Godman). Hb. Kew. 
Allied to I. hederifolia, but differing in its yellow flowers, undivided leaves, &c. 
EXPLANATION OF TAB. LX. 
Fig. 1, a flower laid open; 2, a sepal: enlarged. 
56. Ipomea maireti, Choisy in DC. Prodr. ix. p. 374. 
Sovto Mexico, Mirador (Linden, 1115), Sierra San Pedro Nolasco (Jurgensen, 551). 
Hb. Kew. 
57. Ipomea martinicensis, Mey. Prim. Fl. Esseq. p. 98; Griseb. Fl. Brit. W. 
Ind. p. 471. 
Aniseia martinicensis, Choisy in DC. Prodr. ix. p. 430. 
Convolvulus martinicensis, Jacq. Amer. t. 17. 
GuateMaLa (Hriedrichsthal); Panama, Chagres (Fendler, 237).—West Inpirs and 
Guiana to Brazit. Hb. Kew. 
58. Ipomea mestitlanica, Choisy in DC. Prodr. ix. p. 389. 
_Ipomea batatoides, Benth. Pl. Hartw. p. 46; Bot. Reg. 1841, t. 36, non Choisy. 
SourH Mexico, Mestitlan (Hartweg). Hb. Kew. 
59. Ipomea mexicana, A. Gr. Synop. Fl. N. Am. ii. p. 210. 
Convolvulus hederaceus, Linn. Sp. Pl. p. 219, pro parte. 
Ipomea nil, var. diversifolia, Choisy in DC. Prodr. ix. p. 348. 
Pharbitis diversifolia, Lindl. Bot. Reg. t. 1988. 
New Mexico; Arizona.—Nortu Mexico (ex A. Gray). 
60. Ipomeea microsepala, Benth. Bot. Voy. ‘Sulphur,’ p. 136. 
Sout Mexico, Vera Cruz (Hahn), Acapulco (Sinclair). Hb. Kew. 
61. Ipomoea morelii, Duchass. et Walp. in Linnea, xxiii. p. 752; Walp. Ann. 
iii. p. 109. 
PANAMA. 
62. Ipomea murucoides, Rem. et Schult. Syst. iv. p- 246; DC. Prodr. ix. 
p. 858. (Tab. LXI.) 
Convolvulus macranthus, H. B. K. Nov. Gen. et Sp. iii. p. 95. 
Ipomea macrantha, Don, Gen. Syst. iv. p. 267. 
NortH Mexico, Sierra Madre (Seemann, 2088), Zacatecas (Coulter, 1023); Souru 
