208 ANNALS NEW YORK ACADEMY OF SCIENCES 



* 49. Ipomoea portoricensis (Spreng.) G. Don, Gen, Syst. 4: 278. 1838. 



Convolvulus portoricensis Spreng. Syst. 1: 595. 1825. 



^Convolvulus meyeri Spreng. 1. c. 597. 



Ipomoea meyeri G. Don, Gen. Syst. 4: 275. 1838. — Hallier f. Jahrb. Hamb. Wiss. 



Anstalt. 16: 43. 1898. 

 Ipomoea brachypoda Benth. Bot. Voy. Sulphur 135. 1844. 

 Ipomoea decurtata HaUier f. Bot. Jahrb. 16: 495. 1893. 



Similar in habit and leaf-blades to the two preceding; peduncles 1-3 cm. long, 

 2- to 10-flowered; sepals linear-lanceolate, 2-3 cm. long, 4-6 mm. broad, hirsute, 

 attenuate; corolla 2.5-3 cm. long, blue; capsules 1 cm. thick. 



Type locality: Porto Rico. 



Distribution: West Indies, southern Mexico to Panama and Guiana. 



Specimens examined: Cuba; Wright 451, 1856-7 (G). Jamaica; 

 Marsh (G); Harris 6931, 1897 (Y). Porto Rico; Sintenis 828, 1885 (Y); 

 Heller 6225, 1902 (Y). Panama; CowelHO &291, 1905 (Y). Santa Marta, 

 Colombia, Herbert H. Smith 1573 & 1574, 1899 (Y). 



50. Ipomoea barbatisepala A. Gray, Syn. Fl. N. Am. 2*: 212. 1878. 



Type locality: Declivity of mountain near El Paso, Texas. 



Distribution: Dry or rocky hillsides, western Texas to Arizona and 

 Oaxaca. 



Specimens examined: Texas; C. Wright 507, 1849 (type — G); 

 Pringle 68, 1884 (G). Arizona; Lemmon 4U, 1881 (G); Griffiths 2032, 

 1900 (N); Thornher 76, 1903 (Y). Oaxaca; Conzatti & Gonzalez 697^, 

 1897; 1094, 1900 (G — cf. Greenm. Proc. Am. Acad. 39: 84. 1903). 



^ 51. Ipomoea silvicola House, Bot. Gaz. 43: 411. f. 4- 1907. 



More or less densely pubescent; leaf-blades ovate, entire or 3-lobed, appressed 

 sericeous-pubescent above, more densely so beneath; peduncles 1- to 3-flowered; 

 sepals unequal, lanceolate, acuminate, 18-28 mm. long, appressed-pubescent and 

 densely tentacular below; corolla 6-7 cm. long, glabrous. 



Type locality: Rio de Las Canas, Guatemala. 



Distribution: Forests of southern Mexico to Panama. 



Specimens examined: Mexico: Chiapas, E. W. Nelson 3263 & 3419, 

 1895 (N). Guatemala; John Donnell Smith (legit Heijde & Lux.) 4022, 

 1892 (type — N, C). Panama; Svtton Hayes, July 1860 (G). 



