200 
ANNALS NEW YORK ACADEMY OF SCIENCES 
Type locality: Mexico. 
Distribution: Western Texas to Arizona, Central America and prob¬ 
ably in South America. 
Illustrations: Dill. Elth. pi. 83. /. 96. Jacq. f. Eclog. 1: pi. 44 - 
Hook. Bot. Mag. pi. 4389. Bot. Reg. pi. 1988. 
Specimens examined from Texas, New Mexico, Arizona; Sonora, 
Jalisco, Chihuahua, Durango, Valley of Mexico, Aguas Calientes, Quere- 
taro, Oaxaca, Mechoacan and Guatemala. 
34. Ipomoea jamaicensis (Spreng.) G. Don, Gen. Syst. 4: 278. 1838. 
— Meissn. in Mart. FI. Bras. 7: 225. 1869. 
Convolvulus folio lanato, etc. Sloan. Jam. 55.— Hist. 1: 154. 
Convolvulus tomentosus L. Sp. PI. 156. 1753. 
tC. roseus Mill. Diet. No. 18. 1768. 
C. jamaicensis Spreng. Syst. 1: 595. 1825. Not C. jamaicensis Jacq. 1768. 
Pharbitis tomentosa Choisy, in DC. Prodr. 9: 342. 1845. 
Pharbitis jamaicensis Gib. Enum. PI. Montev. 28. 1873. 
Ipomoea tomentosa Urb. Sym. Ant. 3: 344. 1902. Not I. tomentosa Choisy, 1845. 
Type locality: Jamaica. 
Distribution: Jamaica to tropical South America. 
Illustrations: Sloan. Hist. pi. 98. j. 2. Pluk. Aim. pi. 167. /. J. 
Meissn. in Mart. FI. Bras. 7 : pi. 77. 
Specimens examined: Jamaica: Great Goat Isk, Harris 9212, 1906 
(Y). 
35. Ipomcea mutabilis Lindl. Bot. Reg. 1: 39. 1815. 
Convolvulus mutabilis Spreng. Syst. 1: 593. 1825. Not C. mutabilis Salisb. 1797. 
Pharbitis mutabilis Boj. Hort. Maurit. 227. 1837. 
Pharbitis dealbata Mart. & Gal. in Bull. Acad. Brux. XII. 2: 272. 1845. 
Ipomoea dealbata Hemsley, Biol. Cent.-Am. Bot. 2: 386. 1882. 
Ipomoea Learii Meissn. in Mart. FI. Bras. 7: 224. 1869. Not I. Learii Paxton, 
1839. 
Stems densely and softly pubescent; leaf-blades orbicular-ovate, entire or 3- 
lobed, 6-15 cm. long, appressed-pubescent above, silvery-canescent beneath; sepals 
linear-lanceolate, 10-15 mm. long, appressed silky-pilose; corolla 7-8 cm. long, 
blue with a white tube. 
Type locality: Near Vera Cruz, Mexico. 
Distribution: Wooded slopes and mountain forests, Tamaulipas to 
Vera Cruz, Orizaba and Oaxaca to Brazil. 
