Part 1, 1907] LINACEAE 77 



beneath than above; bracts lanceolate; glandular toothed; outer sepals oblong to oblong- 

 lanceolate, becoming 3.5-4 mm. long, slightly acuminate, quite evenly glandular-toothed; 

 inner sepals lanceolate to ovate-lanceolate, long-acuminate, more finely toothed than the 

 outer ; petals yellow ; filaments glabrous ; staminodia 2-lobed ; ovary and distinct styles 

 glabrous ; capsules ovoid, about 2 mm. long, about equalling the sepals. 



Type locality : San Andres, Jalapa, Mexico. 

 Distribution : Mexico.. 



22. Cathartolinum Greggii (Engelm.) Small. 



Linum Greggii Engelm. in A. Gray, PI. Wright. 1 : 26. 1S52. 



Perennial, bright-green, glabrous, the stems more or less tufted on the wood)- base, 

 2-4 dm. tall, striate or somewhat angled, corytnbosely branched above, the branches stiff, 

 the cymules rather compact ; leaves alternate, spreading, few and distant at least above, 

 rather deciduous, the blades thinuish, oblanceolate on the lower part of the stem, lanceolate 

 above, entire ; bracts lanceolate, glandular-toothed ; outer sepals oblong-lanceolate, becoming 

 3-3.5 mm. long, evenly glandular-toothed, acute; inner sepals lanceolate, somewhat acu- 

 minate, usually a little more closely toothed than the outer ; petals yellow ; filaments 

 glabrous; staminodia 2-lobed; ovary and distinct styles glabrous; capsules ovoid, about 

 1.5 mm. long, surpassed by the sepals. 



Type locality : Near Saltillo, Mexico. 

 Distribution : Mexico. , 



23. Cathartolinum Cruciata (Planch.) Small. 



Linum Cruciala Planch. Lond. Jour. Bot. 7 : 499. 1848. 



Perennial, glabrous at least to the inflorescence, the stems 1-3 dm. tall, obsoletely striate, 

 corymbosely branched above, the inflorescence-branches slender, prominently striate ; leaves 

 numerous, whorled, sometimes alternate above, erect-spreading, spreading or reflexed, the 

 blades elliptic to elliptic-lanceolate, 0.5-1 cm. long, toothed and often glandular-margined, 

 otherwise glabrous, acute ; bracts similar to the leaves but smaller, and finely glandular- 

 toothed ; outer sepals lanceolate, becoming 4^1.5 mm. long, acute, evenly glandular- 

 toothed ; inner sepals lanceolate to ovate-lanceolate, somewhat acuminate, more closely 

 toothed than the outer ; petals yellow ; filaments glabrous ; staminodia 2-lobed ; ovary and 

 distinct styles glabrous ; capsules not seen. 



Type locality : Tepic, Mexico. 

 Distribution : Mexico. 



24. Cathartolinum Muelleri Small, sp. now 



Annual and perhaps sometimes perennial, deep-green, the stem 3-5 dm. tall, finely 

 hirsute, usually branched at the base and loosely corymbose above, the branches of the 

 inflorescence rather stiff, the cymules open ; leaves quite numerous but not crowded, 

 whorled or opposite on the lower part of the stem and branches, alternate above, sparingly 

 pubescent, sometimes so only on the veins beneath, the blades oval, elliptic or oblong, 6-13 

 mm. long, acute or abruptly pointed, entire or sometimes glandular-toothed ; bracts lance- 

 olate, glandular-toothed ; outer sepals lanceolate to oblong-lanceolate, becoming 3-3.5 mm. 

 long, closely glandular-toothed, short -acuminate ; inner sepals lanceolate, more acuminate 

 and more finely toothed than the outer ; petals yellow; filaments pubescent at the base; 

 staminodia 2-lobed, ciliate ; ovary finely pubescent ; styles distinct, glabrous ; capsules 

 ovoid, about 2 mm. long, slightly surpassed by the sepals. 



Type collected in Orizaba, Mexico, 1853, Frederick Mtiller 1060. 

 Distribution : Mexico. 



25. Cathartolinum tenellum (Sehlecht. 6c Cham.) Small. 



I, ilium tenellum Sehlecht. & Cham. Linnaea 5 : 235. 1830. 



Annual, grayish-green , the stem usually branched at the base, the branches 0.5-3 dm. 

 tall, minutely hirsute, striate-angled, irregularly branched above, the cymules mostly 

 elongate and raceme-like; leaves rather few, sometimes approximate and usually opposite 



