HOUSE, THE GENUS IPO MCE A 
197 
30. Ipomoea pubescens Lam. Tabl. Encyc. 1: 265. 1891.— Encyc. 
6: 15. 1804.— Meissn. in Mart. FI. Bras. 7: 224. 1869. 
Convolvuloides pilosa Moench, Meth. 452. 1794. 
Ipomoea Papiriu & subtriloba Ruiz. & Pav. FI. Peruv. 2: 11. 1799. 
Ipomoea varia Roth, Catal. 2: 17. 1800. 
Convolvulus pubescens Willd. Enum. Hort. Berol. 1: 203. 1809. 
Convolvulus Papiria Spreng. Syst. 1: 592. 1825. 
Batatas Papirin & subtriloba G. Don, Gen. Syst. 4: 261. 1838. 
Pharbitis varia, G. Don, 1. c. 263. 
Pharbitis pubescens Choisy, in DC. Prodr. 9: 344. 1845. 
Stems retrorsely hispid and pubescent with long whitish pili; leaf-blades similar 
to the preceding but more hispid-pubescent; sepals narrowly ovate, acuminate, 
15-18 mm. long, 7-8 mm. broad at the rounded or subcordate base, becoming 20 by 
18 mm. in fruit; corolla 3-4.5 cm. long, the tube white, 7-8 mm. thick above the 
calyx, the purple 5-angled limb 2.5-5 cm. broad. 
Type locality: America (Lam.); Prov. Tarma, Peru (Ruiz. & Pav.). 
Distribution: Stony hills, western Texas and Mexico to Peru and 
Bolivia. 
Illustrations: Ruiz. & Pav. 1. c. pi. 120. j. a. 
Specimens examined: Western Texas; C. Wright 509 (G). Mexico: 
Dr. J. Gregg 389, 1848—49 (G). Queretaro; Pringle 7191+, 1896 (G). 
Rose, Painter & Rose 951+1, 1905 (N). Durango; E. W. Nelson 1+638, 
1+71+7 & 1+962, 1898 (N). Hidalgo; Purpus 1393, 1905 (N, Y). Rose, 
Painter & Rose 8351+, 1905 (N). Valley of Mexico; Rose, Painter & Rose 
951+1, 1905 (N, Y). 
The above cited specimens are identical with Rushy’s 1988, 1885, from 
near La Paz, Bolivia, which agrees in all particulars with the descriptions of 
Lamark and of Ruiz & Pavon. 
6. Hederacese. Annuals or perennials, rarely with tuberous roots; 
stems and foliage usually pubescent or hirsute; peduncles usually several 
or many flowered; sepals equal or nearly so, broadest at or near the base, 
usually densely hispid and acute to acuminate or attenuate-caudate; corolla 
blue or white; ovary 3-celled or sometimes 5-celled. 
Sepals acute, 8-15 mm. long. 
Stems prostrate; ovary 5-celled; leaf-blades hastate- 
cordate or lo bed; root tuberous. 31. 
Stems twining; ovary 3-celled, leaf-blades ovate. 
Stems and leaves hirsute to glabrate. 
Leaf-blades usually entire; corolla 4-6 cm. long. 32. 
Leaf-blades usually 3-lobed; corolla 2.5-3 cm. long. 33. 
Stems and leaves densely and softly tomentose. 34. 
Sepals attenuate or caudate-attenuate. 
I. decasperma. 
I. purpurea. 
I. hirsutula. 
I. jamaicensis. 
