CATALOGUE. 205 



shaped; lobes short ; sepals oblong, margins slightly scarious, distinctly 2-3- 

 keeled ; style entire, the 2-lobed stigma very slightly roughened ; seeds in 

 my specimens smooth or nearly so. (590 a hairy form.) — Southern Arizona 

 (631, 679, 623 a); common. 



Ipomcea leptophylla, Torr. — Perennial ; stems smooth, often erect and 

 bushy, usually prostrate ; leaves thickish, sessile, entire, acute, lance-linear, 

 3' long, veiny; peduncles 1-3-flowered; sepals ovate, obtuse, somewhat 

 mucronate. Corolla with a spreading border, 1J' across; tube 1J' long; 

 filaments hairy below, inserted near the base of the corolla; style equalling 

 the stamens, lobes of the stigma capitate. — Loew; probably from along the 

 Arkansas. 



Ipomosa. coccinea, L. (Quamoclit coccinea, Mcench).— Southern Ari- 

 zona (559). 



Convolvulus sepium, L., var. eepens, Gray (Calystegia sepium, R Br., 

 var. pubescens, Cray). — Zufii, N. Mex , 6,500 feet altitude (162). 



Convolvulus incanus, Vahl. — Twining, silky-hairy ; stems terete ; 

 leaves linear-lanceolate, 9-18" long, somewhat cordate, and distinctly 

 auricled at base ; auricles diverging and recurved, entire or more or less 

 deeply 2-3-lobed; petioles 2-6" long; peduncles 1-2^' long, bearing a pair 

 of small bracts above the middle ; sepals villous, ovate, rather obtuse, half 

 as long as the broadly infundibuliform hairy corolla ; lobes of corolla dis- 

 tinctly hairy-tipped. — Arizona (Loew, 150 a); (482) at 5,300 feet altitude. 



Convolvulus longipes, "Watson (American Naturalist, 7, 302). — "Gla- 

 brous, glaucous, twining; leaves linear, 1 inch long or less, entire or auricled 

 at base, petioled ; peduncles elongated, 2-6 inches long, mostly strict, 2-3- 

 bracted, usually 1-flowered ; bracts linear ; calyx-lobes rounded, obtuse or 

 emarginate; corolla funnel-form, \\ inches long, yellowish. — Southern 

 Nevada." — Plate XX. Fig. 1. Natural size. 2 Pistil. 3. Cross-section 

 of ovary. 4. Stamen. Figs. 2, 3, and 4 enlarged. 



Evolvulus* sericeus, Swartz. — Spreading, procumbent, branches 4-8' 

 long ; leaves sessile, lanceolate to oblong, acute or obtuse, smooth or nearly 

 so above, densely silky -hairy below ; pedicels axillary, 1-3" long ; sepals 



*Evolvulus, L. — A genus of about 70 species, natives mostly of Tropical America; distinguished 

 from Convolvulus in baving two styles, and each of these being divided into two linear-filiform stigmas ; 

 and also by the ovary being sometimes 1 -celled from the disappearance of the partition. 



