220 
ANNALS NEW YORK ACADEMY OF SCIENCES 
Type locality: Vera Cruz, Mexico. 
Distribution: Mexico and Central America. 
Specimens examined: Guatemala; San Jose, Sutton Hayes, 1860 (G). 
Ipomcea setosa pavoni (Hallier f.). comb. nov. 
Ipomcea setosa Griseb. FI. Br. W. Ind. 469. 1861. 
Calonyction pavoni Hallier f. in Bull. Herb. Boiss. 6: 1048. .1897. 
Similar to I. setosa, the stem clothed with weaker, hair-like setae; flowers cincin- 
nial in short, axillary dichasia, long-peduncled; pedicels clavate; the outer sepals 
with a few weak setae; corolla campanulate, white or pale violet-purple, the tube 
conspicuouly dilated above the calyx, 5-7 cm. long. 
Type locality: Jamaica. 
Distribution: West Indies and tropical South America. 
74. Ipomcea tentaculifera Greenm. Proc. Am. Acad. 33: 482. 1898. 
Root, tuberous and perennial; leaf-blades ovate, 8-10 cm. long, entire, acumi¬ 
nate; peduncles 7-12 cm. long, 1-flowered; the pedicel 4-6 cm. long; sepals oblong, 
obtuse or rounded, the tentacular outgrowths 7-10 mm. long; corolla violet-purple, 
7-8 cm. long. 
Type locality: Tomellin Canon, Oaxaca, Mexico. 
Distribution: Oaxaca, Mexico. 
Specimens examined: Pringle 6702, 1897 (type — G, Y, N). 
75. Ipomcea lozani Painter; House, Bot. Gaz. 43: 411. /. 3. 1907. 
Perennial from a tuberous root; leaf-blades narrowly ovate, deeply cordate- 
sagittate, abruptly narrowed toward the apex, attenuate, 5-8 cm. long, the basal 
lobes rounded, converging and overlapping; peduncles shorter than the petioles; 
pedicel 3-4 cm. long; sepals puberulent, only slightly tentacular, oblong-lanceolate 
acute; corolla purple, 6-7 cm. long, white below. 
Type locality: San Juan del Rio, Queretaro, Mexico. 
Distribution: Stony Hills, Queretaro and Tamaulipas. 
Specimens examined: Rose, Painter & Rose 954-2, 1905 (type — N, Y); 
Pringle 10029, 1905. Tamaulipas; Between Victoria and Janmave Valley, 
E. W. Nelson 4440, 1898 (N). 
12. Bombycospermae. Stout, woody, perennial vines, with flowers in 
dense, axillary, suberect or pendant racemes; seeds covered on all three 
surfaces with long white, crinkled, wool-like hair. 
Bombycospermum Presl. Reliq. Haenk. 2: 137. 1837. 
One species. 
76. 7. bombycina. 
