238 
ANNALS NEW YORK ACADEMY OF SCIENCES 
119. Ipomcea madrensis S. Wats. Proc. Am. Acad. 23: 281. 1888. 
Peduncles 1-flowered, 1-2 cm. long, scabrous; sepals ovate, acute or obtuse 8- 
10 mm. long, muricate; corolla 3-4 cm. long. 
Type locality: Base of the Sierra Madre, Chihuahua, Mexico. 
Distribution: Pine plains, northern Mexico. 
Specimens examined: Pringle 1338, 1887 (type — G, C, N). 
120. Ipomcea egregia House, Torreya 6: 124. 1906. 
Ipomcea cuneifolia A. Gray, Proc. Am. Acad. 19: 90. 1883.— Syn. FI. N. Am. 2: 
Suppl. 434. 1886. Not I. cuneifolia Meissn. 1869. 
Type locality: Tanner’s Canon, Ft. Huachuca, southern Arizona. 
Distribution: Mountains of southern Arizona. 
Specimens examined: Lemmon 2837, 1882 (type — G, N). 
16. Microsepalse. Slender, annual or perennial, twining vines, with 
herbaceous stems: sepals small, less than 5 mm. long, equal or nearly so, 
often acute: corollas small, narrowly funnelform, not ventricose at the base. 
Corolla yellow. 
Leaf-blades sessile or very short petioled. 121. I. amplexicaulis. 
Leaf-blades relatively long-petioled. 122. I. microsepala. 
Corolla Lite or purple. 
Coroha ^ T hite, 10-15 mm. long; leaves pubescent above. 123. I.filipes. 
Corolla-limb blue, about 20 mm. long; leaves glabrous 
abov'' 124. I. turckheimii. 
120. Ipomcea amplexicaulis Fernald, Bot. Gaz. 20: 535. 1895. 
Glabrous or sparingly hispid; leaf-blades ovate, deeply cordate, entire, clasping, 
1.5-4 cm. long; peduncles 3-6 cm. long, 2- to 9-flowered; sepals 2-3 mm. long, 
lanceolate, acute; corolla 15-20 mm. long. 
Type locality: Mountains near Zopelote, Tepic, Mexico. 
Distribution: Mountains of western Mexico. 
Specimens examined: Tepic; Lamb 576, 1895 (type — G, N, Y); Tuxtla, 
Caec. et Ed. Seler 1900, 1896 (G). Durango; Chacala, Goldman 339, 1899 
(N). Between Valle Banderas and Colomo, Tepic, E. W. Nelson 415^, 
1897 (N). 
122. Ipomcea microsepala Benth. Bot. Voy. Sulph. 136. 1844.— Walp. 
Rep. 6: 533. 1847. 
Ipomcea nelsoni Rose, Contr. U. S. Nat. Herb. 1: 343. 1895. 
