Part 1, 1907] I.IXACKAK S3 



mostly ascending, somewhat more approximate on the lower part of the stem than above, 

 the blades thiekish, those of the lower leaves spatulate, those of the upper ones narrowly 

 oblong, all acute, entire, the lateral nerves not marginal ; bracts lanceolate, glandular- 

 toothed ; outer sepals lanceolate, becoming 10-12 mm. long, acuminate, rather sparingly 

 glandular-toothed ; inner sepals much shorter that the outer, more decidedly acuminate 

 and with numerous finer teeth; petals yellow, 18-22 mm. long; capsules not seen. 



Type locality : Southern Texas. 

 Distribution : Texas. 



45. Cathartolinum Earlei Small, sp. now 



Plants 3-4 dm. tall, bright-green. Stems simple at the base or with few elongate slender 

 branches, loosely corvmbosely branched above, striate-angled, glabrous, the branches of 

 the inflorescence erect or ascending; leaves relatively few, alternate, erect or appressed, 

 the blades thick, those of the lower leaves spatulate or linear-spatulate and mostly 1-1.5 

 cm. long, those of the upper leaves linear-subulate to subulate, and longer than those of 

 the lower ones, all entire ; bracts subulate, glandular-toothed ; outer sepals narrowly 

 lanceolate, becoming 8-9 mm. long, acuminate and terminating in a long slender spine ; 

 inner sepals shorter and much broader at the base than the outer ones, slender-tipped and 

 very finely toothed ; petals yellow, 12-14 mm. long ; filaments pubescent ; ovary pubes- 

 cent ; style glabrous ; capsules not seen. 



Type collected on plains east of Pecos, Texas, May 8-19, 1902, F. S. Earle 675. 

 Distribution : Known only from the type locality. 



46. Cathartolinum aristatum (Engelm.) Small. 



Liuum aristatum Engelm. in Wisliz. Tour Northern Mex. 101. 1S4S. 



Plants 2-4 dm. tall, glaucescent. Stems usually sparingly branched at the base, the 

 branches slender, striate or striate-angled, glabrous, sparingly corymbose-branched above, 

 the branches of the inflorescence elongate, the cymes few-flowered ; leaves relatively few, 

 erect or appressed, alternate, the blades thiekish, those of the lower leaves narrowly linear- 

 spatulate to narrowly linear and about 1 cm. long, those of the upper leaves long-subulate 

 to filiform-subulate on account of the involute margins, all entire ; bracts slender-subulate, 

 glandular-toothed ; outer sepals linear-lanceolate, becoming 9-10 mm. long, finely glan- 

 dular-toothed below the attenuate apex, which terminates in a very slender spine ; inner sepals 

 narrowly lanceolate, shorter than the outer ones, more finely toothed and more slender at 

 the apex; petals yellow, 13-15 mm. long; filaments glabrous; capsules ovoid, about 3 mm. 

 long. 



Type locality : Near Carrizal, Chihuahua, Mexico. 



Distribution : Western Texas, eastern New Mexico, and adjacent Mexico. 



47. Cathartolinum subteres (Trel.) Small. 



Linuth aristatum subteres Trel. in A. Gray, Syn. Fl. N. Am. I 1 : 347. 1897. 



Plants 2-3 dm. tall, glaucous. Steins branched at the base, the branches rather stout, 

 ascending or spreading, repeatedly again divided, the branches of the inflorescence slender 

 and elongate, terete or inconspicuously striate ; leaves alternate, crowded at the base of 

 the stem or the main branches, erect or ascending, the blades thick and somewhat succu- 

 lent, those of the lower leaves linear-spatulate, those of the upper linear to subulate, mainly 

 1-1.5 cm. long, all entire, slightly involute in drying; bracts subulate, entire, or the upper 

 ones inconspicuously toothed ; outer sepals lanceolate, becoming 6-7 mm. long, rather 

 abruptly pointed, entire or with few scattered glandular teeth ; inner sepals ovate-lance- 

 olate, shorter than the outer ones and with few or several irregularly-placed teeth ; petals 

 yellow, 10-13 mm. long; filaments and ovary glabrous; capsules ovoid or oblong-ovoid, 

 about 4 mm. long. 



Type locality : Sprucemont, Nevada. 

 Distribution : Nevada. 



