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-tomentose, 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, eqiialliug and not unlike the inner : akeues oblong-turbi- 

 nate, hirsute: jjaj^pus about half the length of the corolla. — PI. Wright, ii. 100, t. 13. — 

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

 (Adj. Mex.) 



185. BARTLIETTIA, Gray. (Joh>i R. Bartlett, Commissioner of the 

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

 in Mem. Amer. Acad, v. 324; Bot. Mex. Bound. 102. — Single species. 



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

 base l)y monoceijhalous scapes of "6 to 9 inches high, and later by similar peduncles termi- 

 nating sparsely leafy branching stems : leaves slender-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, Schott, G. R. 

 Vasci/. (Adj. Mex.) 



186. CROCIDIUM, Hook, (Diminutive formed from KpoKrj, 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 

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

 or spatulate few-toothed sessile or short-petioled radical leaves : cauliue 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. ('AttXoo?, simple, laOi]^, garment, the 

 involucre of unusually few pieces.) — PI. 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 biise : 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. LEPIDOSPARTUM, Gray. (AeTrt?, a scale, and (nrdpTov, the 

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



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

 fioccose-tomentose 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. — Li)iosi/ris squa}7iata, Gray, Proc. Am. Acad, 

 viii. 290. Tetradi/mia {Lppidosparton) squamata, Gray, Proc. Am. Acad. ix. 207, & Bot. 

 Calif, i. 408 ; var. Breweri & var. Pdlmeri are mere varying forms. Carj)hq)horas junc.eus, 

 Duraud in Pac'f. II. Rep. v. 8, not Benth. Has been mistaken also for a Bacchuris. — Dry 



