1174 CARDUACEAE 



base : involucres turbinate, 11-14 mm. high, sessile or short -peduncled ; bracts purple, the 

 outer ovate or oval, the middle ones with oval or ovate blades and short claws, the inner 

 linear or linear-spatulate, all obtuse and rather broadly margined : achenes 5-6 mm. long: 

 pappus barbellulate. 



In dry or rocky soil, Virginia and West Virginia to Georgia and Alabama. Summer and fall. 



13. Laciniaria eleg^ntula Greene. Stems often slender, 5-12 dm. tall, glabrous or 

 nearly so, simple or rarely with many short branches above. Leaves usually quite few ; 

 blades linear or nearly so, 5-15 cm. long, with few cilia near the base : heads scattered in 

 a spike or raceme, or rarely paniculate, the peduncles naked : involucres turbinate, 

 about 6-7.5 mm. high, or the terminal ones a little larger; bracts ovate to oblong-oblan- 

 ceolate or nearly linear, with dark -green and rounded tips: achenes 3.5-4 mm. long, his- 

 pidulous : pappus-bristles not plumose. 



In pine lands, Georgia and Florida to Mississippi. Summer. 



14. Laciniaria elongata Greene. Eesembling L. eler/(mtida in habit, but with the 

 lower cauline leaves greatly elongated ; blades narrowly linear, sometimes 3 dm. long, less 

 than 4 mm. wide, those of the upper cauline leaves linear-filiform or nearly filiform, all 

 obscurely punctate: heads loosely borne in a spike: involucres turbinate, 6.5-7.5 mm. 

 high ; bracts ovate to broadly linear, obscurely punctate, faintly striate near the base, the 

 inner glabrous or obscurely ciliolate, all obtuse: achenes 5-5.5 mm. long: pappus-bristles 

 barbellulate. 



In low pine lands, southern Mississippi. Summer and fall. 



15. Laciniaria Earlei Greene. Stems often short, 5-9 dm. tall, racemose or even 

 paniculate above, striate-ridged : leaves rather numerous ; blades broadly linear or linear- 

 lanceolate below and 1-2 dm. long or more, narrowly linear on the upper part of the stem 

 and there much smaller, usually sparingly ciliate near the base : heads commonly numer- 

 ous : peduncles, except the shorter upper ones, scaly : involucres broadly turbinate, 4.5-6 

 mm. high ; bracts suborbicular to broadly oblong or cuneate, obtuse : pappus-bristles 

 merely barbellulate: achenes 3.5-4 mm. long, hispidulous. 



In dry or sandy soil, Alabama and Florida. Summer and fall. 



16. Laciniaria H611eri Porter. Stems often tufted, 1-4 dm. tall, glabrous or nearly 

 80. Leaves rather few ; blades linear, 5-20 cm. long, or shorter on the upper part of the 

 stem, sometimes very sparingly ciliate near the base : heads few, rather distant : involucres 

 turbinate, 8-9 mm. high; bracts lanceolate to oblong-linear, green, acute or acuminate, 

 barely ciliolate: achenes 4-5 mm. long, finely pubescent: pappus-bristles barbellulate. 



In rocky soil or on cliffs, in the mountains, Virginia and North Carolina. Summer and fall. 



17. Laciniaria Smillii Britton. Similar to L. Helleri in habit, but leaves much fewer, 

 often rather remote and spreading, the basal and lower cauline with broadly linear abruptly 

 acute blades : heads few, sessile, separated from each other : involucres turbinate, 9-10 mm. 

 high ; bracts lanceolate to oblong, oblanceolate or linear, acute or acutish, nearly glabrous : 

 achenes 4-4.5 mm. long : pappus-bristles barbellulate. 



On mountain slopes, southwestern Virginia and North Carolina. Summer and fall. 



18. Laciniaria Regimontis Small. Stems 3-9 dm. tall, usually paniculately branched, 

 sometimes spicately racemose. Leaves rather few, 1-2 dm. long or longer, reduced above ; 

 blades narrowly linear, narrowed into winged sparingly ciliate petioles below, sessile above, 

 all erect or ascending : involucres numerous, cylindric, becoming obconic, 8-10 mm. high, 

 conspicuous on account of the thick lax-tipped bracts, erect or ascending, short-peduncled 

 or some nearly sessile ; bracts oblong-ovate to obovate or cuneate, acute to mucronate or 

 the inner slightly hooded, the outer sometimes obtuse, all glandular-punctate, ciliolate, 

 mostly with wing-like margins : achenes 4-4.5 mm. long, ribbed, sparingly pubescent : 

 pappus barbellulate. 



On wooded slopes, North Carolina to Georgia. Summer and fall. 



19. Laciniaria carinata Small. Stems 7-11 dm. tall, finely pubescent, sometimei 

 copiously branched near the middle. Leaves rather few ; blades narroAvly linear, 2-8 cm. 

 long, glabrous, acute : heads sessile, approximate, but not crowded, 3-5-flowered : invo- 

 lucres turbinate, 8-10 mm. high ; bracts ovate-lanceolate to oblong and linear, glabrous, 

 acute or somewhat acuminate, the outer keeled, the inner scarious-margined : achenes 3-4 

 mm. long, pubescent : pappus-bristles short, plumose. 



In pine lands, North Carolina and South Carolina. Summer. 



20. Laciniaria platylepis Small. Stems 8-9 dm. tall, simple, glabrate below, pubes- 

 cent with white hairs alxivc. Leaves relatively few ; blades narrowly linear, 2-10 cm. 

 long, or longer near the base of the stem, glabrous or nearly so : heads rather approximate, 

 sessile, surpassing the subtending bracts : involucres cylindric-campanulate, 7-9 mm. high ; 



