76 NORTH AMERICAN FLORA [Volume 25 



toothed ; petals yellow ; filaments glabrous ; staminodia lanceolate, glabrous ; ovary and 

 distinct styles glabrous ; capsules depressed, about 1.5 mm. long, exceeding the sepals. 



Type collected in the pinelands below Cutler, Florida, Mav 16, 1904, /. A". Small & P. Wilson 

 1919. 



Distribution : Southern peninsular Florida and Pine Key. 



18. Cathartolinum Wrightii Small, sp. nov. 

 Perennial, bright-green, glabrous, the stem usually simple at the base, corymbosely 

 branched above, the branches ascending, stouter than those of C. arenicola but like them 

 terminating in elongate evenly-flowered raceme-like cymes ; leaves few, distant above the 

 base of the stem, alternate, erect or ascending, the blades linear or nearly so, 1-2.5 cm. 

 long, acute, entire, equally green on both sides, sessile; bracts lanceolate-'subulate, glandular- 

 toothed ; outer sepals oblong or ovate-oblong, becoming about 3 mm. long, acuminate, 

 rather coarsely glandular-toothed ; inner sepals ovate, more finely toothed than the outer, 

 acuminate ; petals yellow ; filaments glabrous ; staminodia lanceolate, glabrous ; ovary 

 and distinct styles glabrous; capsules depressed, about 2.5 mm. long, equaling the sepals. 



Type collected in western Texas, Charles Wright 71 (in part). 

 Distribution : Known only from the type locality. 



19. Cathartolinum rupestre (A. Gray) Small. 



Linum Booiih rupestre A. Cray, Bost. Jour. Nat. Hist. 6 : 155. 1850. 

 Linum rupestre Kn^elm. ; Bost. Jour. Nat. Hist. 6 : 232. 1S50. 



Perennial, bright-green, glabrous, more slender than C. Wrightii, the stems more 

 or less densely tufted, 2-4 dm. tall, sparingly corymbose-branched above, the branches of 

 the inflorescence terminating in irregular rather few-flowered cymes ; leaves approximate 

 at the base of the stem, rather distant above, erect or appressed, mostly alternate, early 

 deciduous, the blades thickish, linear-spatulate below to narrowly linear or subulate above, 

 mostly less than 1 cm. long, or longer near the base of the stem, acuminate, entire, sessile ; 

 bracts subulate, glandular-toothed ; outer sepals oblong to lanceolate, becoming 3-4 mm. 

 long, short-acuminate, rather evenly glandular-toothed ; inner sepals oval to ovate, more 

 finely toothed than the outer, abruptly short-pointed ; petals yellow ; audroecium and 

 gynoecium glabrous; capsules ovoid, 2.5 mm. long, barely equaling the sepals. 



Type locality : New Braunfels, Texas. 

 Distribution : Texas, New Mexico, and Mexico. 



20. Cathartolinum Coulterianum (Planch.) Small. 



Linum Coulterianum Planch. Lond. Jour. Bot. 7 : 498. 1848. 



Perennial, deep-green, glabrous, the stems "usually tufted on the wood}' base, mostly 

 1-2.5 dm. tall, angled, corymbosely branched above, the cymes rather few-flowered; leaves 

 few, opposite or whorled on the lower part of the stem, alternate above, mostly ascending, 

 the blades oblong to linear-oblong or those near the base of the stem narrowed at the base, 

 9-14 mm. long, acutish ; bracts lanceolate, glandular-toothed ; outer sepals lanceolate, 

 becoming about 3.5 mm. long, acute, glandular-toothed ; inner sepals lanceolate, rather 

 more closely toothed than the outer ; petals yellow ; filaments glabrous ; staminodia deltoid ; 

 ovary and distinct styles glabrous ; capsules not seen. 



Type locality : Zimapan, Mexico. 

 Distribution : Mexico. 



21. Cathartolinum Schiedeanum (Schlecht. & Cham.) Small. 



Linum Schiedeanum Schlecht. & Cham. Linnaea 5 : 234. 1S30. 



Perennial, glabrous, glaucescent, the stems tufted on the woody base, 1-6 dm. tall, 

 angled, corymbosely branched above, the cymules rather compact; leaves relatively few, 

 opposite or whorled on the lower part of the stem, opposite or sometimes alternate above, 

 erect or ascending, the blades spatulate or oblong-spatulate near the base of the plant, 

 oblong or rarely linear above, 7-16 mm. long, acute or acutish, entire, scarcely paler 



