82 NORTH AMERICAN FLORA [Volume 25 



oblong-lanceolate to ovate-lanceolate, broader and more closely toothed than the outer ones; 

 petals deep-yellow, 11-15 mm. long; capsules ovoid, about 4 mm. long. 



Type locality : Between Cocoanut Grove and Cutler, Florida. 

 Distribution : Southern peninsular Florida. 



41. Cathartolinum elongatum Small, sp. no v. 

 Plants 2-3.5 dm. tall, deep-green. Stems branched at the base, the branches, mostly 

 assurgent, striate or somewhat angled, corymbosely branched above, the branches of the 

 inflorescence greatly elongated, erect or ascending; leaves rather numerous, but not 

 crowded, ascending or spreading, the blades somewhat succulent, those of the lower leaves 

 linear-spatulate and 1-2 cm. long, those of the upper ones very narrowly linear and about 

 twice as long as those of the lower ones, all entire ; bracts linear-attenuate, rather incon- 

 spicuouslv glandular-toothed; outer sepals linear-lanceolate, becoming 11-14 mm. long, 

 attenuate, quite evenly glandular-toothed ; inner sepals lanceolate, broader than the outer 

 ones, and more closely toothed ; petals yellow, longer than the sepals ; capsules not seen. 



Type collected at Laredo, Texas, March 21, 1903, B. F. Bush 3776. 

 Distribution : Texas. 



42. Cathartolinum rigidum (Pursh) Small. 



Linton rigidum Pursh, Fl. Am. Sept. 210. 1814. 



Linum rigidum tenerrimum Blankinship, Mont. Agr. Coll. Sci. Stud. 1 : 85. 1905. 



Plants 1-5 dm. tall, bright-green, glabrous or nearly so. Stems simple at the base or 

 sometimes sparingly branched, and corymbosely branched above, the branches erect or 

 ascending, rigid, prominently striate-angled, the cymules ultimately open; leaves rela- 

 tively few, erect or appressed, alternate, mostly deciduous after anthesis, the blades linear 

 to narrowly linear-lanceolate, 0.6-3 cm. long, acute or acuminate, the upper ones, at least, 

 glandular-ciliate or glandular-serrulate, all sessile ; bracts lanceolate, glandular-toothed ; 

 outer sepals lanceolate, becoming 6-8 mm. long, decidedly acuminate, quite evenly 

 glandular-toothed ; inner sepals rather broader and shorter than the outer ones, more 

 finely and closely toothed, and more slender-tipped; petals yellow, 11-15 mm. long; cap- 

 sules ovoid, 4-5 mm. long. 



Type locality : On the Missouri. 



Distribution : Saskatchewan and Manitoba to Texas and Colorado. 



43. Cathartolinum Berlandieri (Hook.) Small. 



Linum Berlandieri (" Berendieri ") Hook. Bot. Mag. subpl. 34S0. 1836. 

 Linum Plotzii Hook. Bot. Mag. sub pi. 34SO, as synonym. 1836. 

 Linum rigidum Berlandieri T. & G. Fl. N. Am.'l : 204. 1838. 

 / mum annuum Nees, in Max. Reise N. Am. 2 : 431. 1841. 

 Linum arkansanum Osterhout, Bull. Torrey Club 28 : 644. 1901. 



Plants 0.5-3.5 dm. tall, bright-green and sometimes glaucescent when young. Stems 

 simple at the base, or often branched, the branches erect or ascending, striate below, 

 angled above, corymbosely branched, the brauchlets ascending, ,the cymules ultimately 

 open ; leaves few or sometimes quite numerous, but not crowded, spreading or ascending, 

 the blades linear to narrowly linear-lanceolate, mostly 1.5-4 cm. long, acuminate, entire, 

 the lateral nerves marginal ; bracts lanceolate, glandular-toothed ; outer sepals lanceolate, 

 becoming 9-11 mm. long, quite evenly glandular-toothed, acuminate, and minutely spine- 

 tipped ; inner sepals resembling the outer ones but shorter and relatively broader, more 

 finely toothed and more decidedly acuminate ; petals bright-yellow, 17-22 mm. long ; cap- 

 sules ovoid, 4-4.5 mm. long. 



Type locality : Bexar, Texas. 



Distribution : Kansas and Colorado to Texas. 



Illustration : Bot. Mag. pi. 3480. 



44. Cathartolinum sanctum Small. 



Linum sanctum Small, Fl. SE. U. S. 664. 1903. 



Plants 1.5-3. dm. tall, deep-green. Stems striate, pruinose, corymbosely branched 

 above, the branches angled, terminating in ultimately open cymules ; leaves alternate, 



