

316 House: North American Convolvulaceae 



tipsjsometimes ascending, 5-15 cm. long, softly and densely vil- 

 lous-pubescent with ascending, slightly spreading hairs ; leaf- 

 blades sessile, oblong or elliptical in the lower to ovate-lanceo- 

 late in the upper, obtuse or subacute at the base, the apex acute, 

 silky-villous beneath with long silvery subappressed hairs, green 

 and glabrous above, conspicuously convex and falcate, 5~*5 rnm - 

 long; pedicels very short, 1-3 mm. long, the bracts linear-lance- 

 olate, 5-8 mm. long, exceeding the pedicels but not the calyces ; 

 sepals broadly lanceolate, acuminate, 4-5 mm. long, silky-villous 

 without; corolla white or pale blue, subrotate, 8-12 mm. broad, 

 the margin with 5 rounded, slightly retuse lobes, the plicae villous 

 without ; capsules slightly exceeding the sepals, subglobose, 4- 

 valved, 4-seeded, the seeds dark reddish-brown, smooth. 



Arizona: Near Fort Huachuca, Timothy E. Wilcox, 1894 

 (no. 96); type sheet, no.- 212769 in the National Herbarium. 

 May, 1892 and 1894 (no. 8), by the same collector. Copper 

 Basin, J. W. Tourney, 1892 (no. 18 j) ; Apache Pass, Chirricahua 

 Mts., J. G. Lemmon, 188 1 (no. 24.7). 



New Mexico: Grant County, H. H. Rusby, 1881 (no. 298); 

 Mangas Springs, O. B. Metcalf, 1903 (no. 100). 



Coahuila or Nuevo Leon : Dr. Edward Palmer, 1880 (no. 

 912). 



This species has been referred to E. discolor Benth., a species 

 of Mexico, from which this differs by its more dense pubescence 

 of markedly different character, falcate, convex leaf-blades, larger 

 sepals and bracts. The general tufted and spreading habit of this 

 species is also quite different from its Mexican congener. 



The abundant and beautiful specimens .collected by General 

 Wilcox lead me to attach his name to this characteristic species 

 of southern Arizona. 



Evolvulus Wrightii sp. nov. 



Perennial; low, branching from a lignescent or somewhat 



& ■-'-— ~ "& 



woody base ; branches spreading and ascending, densely shaggy 



pubescent with long silky hairs, especially above on the stem and 

 on the lower leaf-surfaces; stems 1-2 dm. long; leaf-blades ses- 



sile, ovate or narrowly ovate, rounded at the base, the apex acute 

 6-10 mm. long, 5-7 mm. broad, less pubescent above than below ; 

 pedicels shorter than the leaves, 1 -flowered ; sepals linear, 4 mnl - 

 long ; corolla blue, about 7 mm. broad, subrotate, the limb sub- 

 entire, the throat white. 



