BLAKE. — ENCELIA AND RELATED GENERA. 379 



Heller 1860 (N); Bexar Co., Jermy (N); foot of limestone hill, near 

 Bracken, Bexar Co., 28 July 1903, B. H. A. Groth 143 (FG); rocky 

 bluffs, Crockett Co., May 1885, Rcverchon (FN); rocky bank. Devils 

 River, 22 July 1900, Earle 439 (N); Pinto, 6 Sept. 1900, Earlc 464 

 (N); Roma, 1889, G. C. Neally (N); southwestern Texas, 1879-80, 

 Palmer 610 (GN), 611 (GN), 613 part (G); without definite locaUty, 

 1849, Wright 330 part (GN); "cultivated," Hall (N); Mexican 

 Boundary Surrey under Emory, 560 in part (N). Nueva Leon: 

 Sierra Madre, above Monterey, alt. 915 m., 17 Aug. 1903, Pringle 

 8739 (FGN); without definite locality, 1880, Palmer 615 part (N); 

 Tamaulipas: Matamoros, April 1831, Lindheimer 2290 = 870 (G). 

 Mexico, without definite locality, 1848-9, Gregg 85 (G). 



1/3. S. calva (Gray & Engelm.) Gray var. subaristata (Gray) 

 Blake, n. comb. Similar in all respects to the last, except that the 

 achenes are appressed-pubescent (sometimes only on the margin 

 above) and usually provided with a pair of upwardly hispidulous awns, 

 which may be reduced to mere traces. 



Simsia subaristata Gray, PI. Fendl. 84 (1849). 



Encelia subaristata Gray in Hemsl. Biol. Centr.-Am. Bot. ii. 185 

 (1881). 



Specimens examined : Texas : Brazos, Sutton Hayes 447 part (G) ; 

 dry hills, Austin, 20 May 1872, Hall 339 (GN); Guadalupe, 20 miles 

 W. of San Antonio, 1880, Palmer 612 (GN) ; Eagle Pass, San Antonio, 

 &c., 1882, Havard 57 (G); San Angelo, 18-19 May 1899, W. L. Bray 

 356 (N); without definite locality, 1849, Wright 330 part (G); south- 

 western Texas, 1880, Palmer 613 part (N); Mcx. Bound. Surv. under 

 Emory, 560 part (N). Tamaulipas: Matamoros, Apr. 1836, Lind- 

 heimer 3010 = 1510 part (G); San Fernando to Jimeney, 26-27 

 Feb. 1902, Nelson 6603 (GN); Nueva Leon: Bishops Hill near 

 Monterey, 6 Feb. 1847, Gregg 47 (G, type); Pico Chico, near Mon- 

 terey, 18 Mar. 1900, Canby, Sargent, & Trelease 135 (N); Coahuila: 

 Caracol Mts., S. E. of Manclova, 1880, Palmer 615 part (G).— Often 

 occurs mixed with S. calva on herbarium sheets. 



-)- -•— Scales 3-4-seriate, the outer much shorter; heads paniculate. 

 ++ Leaves hastatelj^ lobed; stems bristly-hairy as well as glandular: heads 1.5 

 cm. high, 1 cm. broad. 



2. S. setosa Blake, n. sp., herbacea (inferiore caulis parte ignota) 

 ubique dense glandulosa et parce setosa pilis albis paten tibus; foliis 

 ovato-lanceolatis basi sinu lato leviter cordatis et hastato-lobatis 

 dentato-crenatis maximis 9 cm. longis 6 cm. latis; petiolis anguste 

 marginatis 3.5-4 cm. longis basi in orbes dentatas latas conjunctis. 



