378 COMPOSIT.E. 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 wliite-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 

 broadlv linear or barely oblong, equalling aud not unlike the inner : akenes oblong-turbi- 

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

 Borders of Texas, New Mexico, aud Chihuahua, near El Paso, on the Rio Grande, Wright. 

 (Adj. Mex.) 



185. BARTL^EITTIA, Gray. (Jo/ui R. Bartlett, Commissioner of the 

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

 in Mem. Amer. Acad. v. o24; Bot. Mex. Bound. 102. — Single species. 



B. SCaposa, Gkay, 1. c. Slender winter-annual, almost glabrous, flowering almost from the 

 base by monocephalous scapes of 6 to 9 inches higli, and later 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 boundarj', Tliurher, Schott, G. R. 

 Vasey. (Adj. Mex.) 



183. CROCIDIUM, Hook. (Diminutive formed from KpoKTj, loose thread 

 or wool, alluding to the wool which usually })ersists in the axils of the leaves.) — 

 Fl. Bor.-Am. i. o35, t. 118 ; Torr. & Gray, H. 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-peduncnlate, rather small, but showy; the ray aud disk deep 

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

 fornia ; first coll. by Dowjlas. 



187. HAPL.OESTHES, Gray. ('AttAoo?, simple, la-Oy]^, 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, 

 fastii^iatcly branched, glabrous, leafy up to tlie 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. LEPIDOSPARTUM, Gray. (Acttis, a scale, and <nrapTov, 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-tomentose and with spatulate entire alternate leaves of half-inch or more in leugtli ; 

 but the primary brauches and wliole 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. — Linoagris squamata. Gray, Proc. Am. Acad, 

 viii. 290. Tetradgmia [Lepidonparton] squamata, Gray, Proc. Am. Acad. ix. 207, & Bot. 

 Calif, i. 408 ; var. Breirrri &, var. Pahneri are mere varying forms. Carphephorus junreus, 

 Durand in Pac'f. P. Pep. v. 8, not Bentli. Has been mistaken also for a Baccharis. — Dry 



