CATALOGUE. 305 



and strictly spicate along the few rigid subsimple branches ; calyx rather 

 large, (2" long,) pinkish or white, acute at base, very glabrous, with similar 

 obovate segments ; ovary glabrous or rough above ; cotyledons orbicular, very 

 eccentric, rather shorter than the incurved radicle. — Northern New Mexico 

 andUtah. Foot-hillsof the Wahsatch; 5-6,000 feet altitude; July. (1,028.) 

 Eeiogonum Wkightii, Torr. T. 8^ G., I. c, p. 176. Perennial, caules- 

 cent (1-2° high) from a woody base, branched ; branches leafy below ; leaves 

 J-1' long, oblong-ovate or sublanceolate, narrowed at base, white-woolly both 

 sides or only beneath, smaller and often fascicled in the axils ; panicle dicho- 

 tomously branched ; involucres 1-li" long, with small bracts, rather loosely 

 spicate along the somewhat rigid branches, 5-6-toothed, many-flowered ; 

 calyx white or pinkish, very glabrous, acute at base, segments broad-obovate 

 or the outer ones suborbicular ; ovary scabrous above, especially on the an- 

 gles. — A polymorphous species, extending from Southwestern Texas to Ari- 

 zona, Western Nevada and California. The Nevada specimens (collected by 

 Anderson and others) belong to a depauperate form with very short leafy 

 branches and more scapelike peduncles. 



Eriogonum vimineum, Dougl. T. 8f G., I. c, p. 177. Annual, low, 

 (4-12',) sparingly tomentose above or glabrous ; leaves radical, rounded, white- 

 woolly beneath, webby above ; involucres narrowly tubular, not over 2" long, 

 very shortly 5-toothed, few-flowered, glabrous, appressed, scattered along the 

 very slender glabrous branches of the loose and spreading decompound pani- 

 cle ; bractlets small, appressed, scarcely barbellate ; calyx very glabrous, 

 white or pinkish, shorter than the involucres even in fruit, outer segments 

 broadly obovate, the inner narrower. — Washington Territory to California 

 and Nevada. Virginia Mountains, Nevada; 6,000 feet altitude; August. 

 Leaves 6-8" in diameter, on ^1' petioles. (1,029.) 



ERfoGONUM GEAciLE, Benth. T. Sf G., I. c, p. 178. Annual, usually 

 very much branched ; leaves radical or sometimes more or less cauline, ovate 

 or oblong, white-woolly beneath and floccose above, as also usually the 

 branches and involucres ; involucres few- or somewhat many-flowered, 

 5-toothed, about 1" long, scattered on the slender branches of the spreading 

 panicle, appressed; bractlets short, finely sub glandular-barb ellate ; calyx 

 glabrous, white or rose-colored, shorter than the involucre after flowering, 

 outer segments obovate, the inner narrower. Var. effusum, T. & Gr. Pani- 

 39 



