72 NORTH AMERICAN FLORA [Volume 25 



the stem, elliptic to elliptic-lanceolate above, 1-2.5 cm. long, entire, and those of the upper 

 leaves mostly acute, all scarcely paler beneath than above ; bracts entire ; outer sepals 

 lanceolate to oblong-lanceolate, 3-3.5 mm. long at maturity, acuminate, entire; inner 

 sepals shorter and broader than the outer, entire, or erose near the abruptly pointed apex 

 by the bases of the few deciduous marginal glands ; petals yellow ; capsules depressed, 

 about 2.5 mm. broad. 



Type locality : Virginia. 



Distribution : Maine and Ontario to Georgia and Alabama. 



Illustrations : A. Gray, Gen. 111. pi. 143, f. 1-8; Britt. &. Brown, 111. VI. f. 2260. 



3. Cathartolinum medium (Planch.) Small. 



Linum virginianum medium Planch. Lond. Jour. Bot. 7: 480. 1848. 



1. mum virginianum (?) texanum Planch. Lond. Jour. Bot. 7: 481. 1848. 



Linum medium Britton ; Britt. & Brown, 111. Fl. 2 : 349. 1897. 



Perennial, or sometimes annual, glabrous, bright-green, the stems solitary or sparingly 

 tufted, 3-7 dm. tall, corymbosely branched above, with few or many stiff ascending or 

 erect-ascending branches, prominently striate-ridged ; leaves erect and appressed or erect- 

 ascending, alternate throughout, or opposite on the lower part of the stem, the blades 

 thickish, those of the lower leaves spatulate, those of the upper ones linear-elliptic to 

 linear-lanceolate, mostly 1-2 cm. long, acute, entire, slightly paler beneath than above ; 

 bracts entire ; outer sepals typically lanceolate to oblong, and 3-4 mm. long at maturity, 

 long-acuminate, entire ; inner sepals broader and much shorter than the outer ones, ovate 

 to oval, abruptly long-pointed, copiously glandular-toothed ; petals yellow ; capsules 

 depressed, 2.5-3 mm. broad. 



Ty - pe locality : Lake Huron, Canada. 



Distribution : Ontario to Florida and Texas. 



Illustration : Britt. & Brown, 111. Fl./. 2261. 



4. Cathartolinum Curtissii Small. 



Linum Curtissii Small, Bull. N. Y. Bot. Card. 3 : 424. 1905. 



Annual, glabrous, bright-green, the stems solitary, 2-6.5 dm. tall, simple or corym- 

 bosely branched above, with few rather stiff ascending branches, slightly striate in age ; 

 leaves erect or ascending, alternate, except near the base of the stem, the blades thickish, 

 those of the lower leaves oblong-oblanceolate to spatulate, those of the upper ones linear 

 or nearly so, mostly 0.5-1.5 cm. long, acute or somewhat acuminate, entire, scarcely paler 

 beneath than above ; bracts entire ; outer sepals ovate, sometimes narrowly so, acute or short- 

 acuminate, usually with few glandular teeth, 2.5-3 mm. long at maturity; inner sepals 

 mainly ovate, commonly broader but scarcely shorter than the outer, rather copiously 

 glandular-toothed, acute or abruptly short-pointed; petals yellow; capsules spheroidal, 

 about 2.5 mm. broad. 



Type locality : Nassau, New Providence, Bahamas. 

 Distribution : Southern peninsular Florida and the Bahamas. 



5. Cathartolinum floridanum (Planch.) Small. 



Linum virginianum (?) floridanum Planch. Lond. Jour. Bot. 7: 480. 1848. 

 Linum floridanum Trel. Trans. Acad. St. Louis 5 : 13. 1887. 



Perennial, glabrous, bright-green, the stems solitan- or sparingly tufted, 3-8 dm. tall, 

 corymbosely branched above or near the top, with the branches erect or ascending, rather 

 stiff, but sometimes curved, striate in age; leaves nearly erect or appressed, alternate, at 

 least above the base of the stem, the blades firm, those of the lower leaves spatulate, those 

 of the upper ones linear-elliptic or linear, often narrowly so, mainly 1-1.8 cm. long, acute, 

 entire, scarcely paler beneath than above ; bracts entire; sepals nearly equal in length, the 

 outer lanceolate or oblong-lanceolate, 3-3.5 mm. long at maturity or rarely shorter, entire, 

 long-acuminate, the inner barely shorter than the outer, ovate to oblong-ovate, abruptly 

 pointed, with many firm glandular teeth ; petals yellow ; capsules ovoid, sometimes broadly 

 so, 2-2.5 mm. broad, equaling or surpassing the sepals. 



Type locality : Florida. 



Distribution : Eastern Massachusetts and southern Illinois to Florida and Mississippi. 



Illustration: Britt. & Brown, 111. Fl. /. 2262. 



