378 COMPOSITE. Psathyrotes. 



2. Scapose, erect : corollas nearly glabrous throughout : style-branches flatter, 

 very obtuse, externally minutely hirsute over most of the back. 



P. scaposa, GRAY. Leaves all at or near the base, ovate or roundish, almost entire, short- 

 petioled, at first loosely white-tomeutose, at length glabrate : scapes or naked peduncles 

 several, 3 or 4 inches high, bearing 3 to 7 corymbosely disposed heads, glandular-pubescent, 

 as also the campanulate involucre : bracts of the latter all somewhat herbaceous ; outer ones 

 broadly linear or barely oblong, equalling and not unlike the inner: akenes oblong-turbi- 

 uate, hirsute: pappus about half the length of the corolla. PL Wright, ii. 100, t. 13. 

 Borders of Texas, New Mexico, and Chihuahua, near El Paso, on the liio Grande, Wright. 

 (Adj. Mex.) 



185. BAR,TLETTIA, Gray. (John fi. Bartlett, Commissioner of the 

 Mexican Boundary Survey, in which this plant was discovered.) PI. Thurb. 

 in Mem. Amcr. Acad. v. 324; Bot. Mex. Bound. 102. Single species. 



"B. scaposa, GRAY, 1. c. Slender winter-annual, almost glabrous, flowering almost from the 

 base by monocephalous scapes of G to 9 inches high, and Inter by similar peduncles termi- 

 nating sparsely leafy branching stems : leaves sleuder-petioled, roundish or subcordate, 

 membranaceous, repand-dentate, some 3-5-lobed : head half-inch or less high : involucre 

 pubescent : flowers yellow : pappus rather fragile, little longer than the akene. New 

 Mexico, near El Paso, perhaps only below the Mexican boundary, Thurber, Scliott, G. IL 

 Vaseij. (Adj. Mex.) 



183, CROCfDIUM, Hook. (Diminutive formed from KpoK-rj, loose thread 

 or wool, alluding to the wool which usually persists in the axils of the leaves.) 

 Fl. Bor.-Am. i. 335, t. 118; Torr. & Gray, Fl. ii. 448; Benth. & Hook. Gen. ii. 

 440. Single species ; fl. early spring. 



C. multicaule, HOOK. 1. c. Small winter annual, a span or two high, flocculent-woolly 

 when young, soon mostly glabrate, producing many simple stems from the tuft of obovate 

 or spatulate few-toothed sessile or short-petioled radical leaves : cauline leaves small, lanceo- 

 late to linear: head slender-pedunculate, rather small, but showy; the ray and disk deep 

 golden yellow. Plains and hills, British Columbia and Idaho to the northern part of Cali- 

 fornia ; first coll. by Douglas. 



187. HAPLOESTHES, Gray. ('ATT/VOO?, simple, eV0ifc, garment, the 

 involucre of unusually few pieces.) -- PL Fendl. 109, PI. Wright, i. 125, & Bot. 

 Mex. Bound. 102. Single species. 



H. Greggii, GRAY, 1. c. Somewhat fleshy, herbaceous or suffrutescent, a foot or two high, 

 fastigiately branched, glabrous, leafy up to the loose cymes of a few slender-pedunculate 

 naked heads: leaves all opposite, very narrowly linear or filiform, entire; the lower connate 

 at base : heads 2 or 3 lines high : flowers yellow : ligules 1 or 2 lines long. Saline soil, 

 S. E. Colorado and W. Texas to the Mexican border, Wright, Bigelow, Parry, c. (Adj. 

 Mex. ; first coll. by Gregg. ) 



188. LEPIDOSPABTUM, Gray. (Ar, a scale, and cnraprov, the 

 Broom plant.) Proc. Am. Acad. xix. 50. Single species. 



L. squamatum, GRAY, 1. c. A rigid Broom-like shrub, 4 or 5 feet high; seedling plants 

 floccose-tomentosc and with spatulate entire alternate leaves of half-inch or more in length ; 

 but the primary branches and whole subsequent growth glabrous or nearly so, and beset 

 with small and thickish appressed green scales in place of leaves : heads terminal or more 

 commonly spicate-paniculate on the slender branchlets, 3 to 5 lines long : involucre very 

 glabrous, 10-18-flowered : corollas pale yellow. Linosyris sqnamata, Gray, Proc. Am. Acad. 

 viii. 290. Tetrad i/mia (Lepidosparton) squamata, Gray, Proc. Am. Acad. ix. 207, & Bot. 

 Calif, i. 408 ; var. Brarcri & var. Pa/meri are mere varying forms. Carphcphorus junceus, 

 Durand in Pac'f. II. Hep. v. 8, not Benth. Has been mistaken also for a Baccharis. Dry 



