CARDUACEAE 1188 



■with oblong-spatulate, oblong or linear blades 1-5 cm. long : heads often numerous : in- 

 volucres 5-8 mm. high ; bracts lanceolate to linear, acute or acuminate, ciliolate. 

 In pine lands, North Carolina to Florida and Louisiana. Summer and fall. 



12. Chrysopsis gigantea Small. Foliage somewhat woolly, the hairs partially de- 

 ciduous. Stems 8-15 dm. tall, corymbosely branched above : leaves numerous, the basal 

 and lower stem-leaves with spatidate to oblanceolate or oblong-oblanceolate blades 5-10 cm. 

 long ; upper stem-leaves much smaller, narrowly oblong to oblong-lanceolate, or somewhat 

 broadest above the middle, often serrulate, sometimes apiculate, sessile : involucres 7-9 

 mm. high, many-flowered ; bracts linear-lanceolate to linear, acute or slightly acuminate, 

 glabrous, becoming rigid. 



In pine lands, Florida and Alabama. Fall. 



13. Chrysopsis hyssopifolia Nutt. Foliage glabrous above the basal leaves. Stems 

 3-9 dm. tall, nearly simple or corymbose at the top : leaves numerous, the basal in a dense 

 rosette, with spatulate or linear-spatulate blades 2-5 cm. long ; stem-leaves often crowded ; 

 blades narrowly linear to linear-tiliform, 1-6 cm. long : involucres about 8 mm. high ; 

 bracts linear-lanceolate to linear, rigid, ciliolate, with erect or spreading sharp tips. 



In pine lands, Florida. Summer. 



14. Chrysopsis scabrella T. & G. Foliage rough-glandular. Stems 3-8 dm. tall, 

 corymbose!}' branched above : leaves rather numerous ; blades linear-spatulate to linear, 

 acute, entire, sessile : involucres 6-9 mm. high ; bracts linear-subulate to linear, rigid, 

 firm-pointed. 



In dry sand, Florida: Fall. 



15. Chrysopsis Mariana (L. ) Xutt. Foliage cobwebby-villous, and glandular above. 

 Stems 1-6 dm. tall, simple or corymbose above : leaf-blades spatulate to elliptic or oblong, 

 2-12 cm. long, often acute, entire or remotely toothed, the lower ones narrowed into broad 

 petioles : heads showy : involucres 8-10 mm. high ; bracts linear, acute, glandular, cilio- 

 late. 



In sandy soil, New York to Florida and Louisiana. Summer and fall. 



16. Chrysopsis Floridana Small. Foliage white-cottony and persistently so. 

 Stems usually branched at the base, the branches curved, 2.5-4 dm. long, corymbose above : 

 leaves regularly disposed along the stem or branches (the basal ones not seen); blades 

 cuneate to oblong-cuneate, 1.5-2.5 cm. long, obtuse, densely pubescent but not as pale as 

 the stem except the margins, partly clasping : heads few, terminating somewhat glandular 

 peduncles : involucres 6-8 mm. high ; bracts linear-lanceolate to linear, firm, glandular, 

 juerely acute : ray-flowers witli ligules about 1 cm. long. 



In sandy soil, near Braidentown, Florida. Fall. 



17. Chrysopsis latisquama Pollard. Foliage woolly below, glandular above. 

 Stems 3-7 dm. tall, corymbose above, the branches often elongated : basal and lower stem- 

 leaves with spatulate or oblanceolate blades, 5-8 cm. long : upper stem-leaves smaller ; 

 blades oblong or nearly so, serrate : involucres 7-8 mm. high ; bracts mostly broadest 

 above the middle, not woolly, glandular, deep green, the outer rather foliaceous, usually 

 acute : ray-flowers with ligules about 1 cm. long. 



In low pine lands, peninsular Florida. Spring to fall. 



18. Chrysopsis deciimbens Chapm. Foliage densely cobwebby. Stems decum- 

 bent, 6-12 dm. long, corymbose above : basal leaves in dense rosettes ; blades spatulate 

 to linear-spatulate, 4-8 cm. long, sparingly toothed : stem-leaves numerous ; blades oblong 

 to linear-oblong, 1-2 cm. long, obtuse, entire : heads showy, in loose corymbs : involucres 

 8-10 mm. high; bracts linear-lanceolate to linear, glandular-pubescent, acute or acuminate; 

 ray-flowers about 25. 



In sand, St. Vincent Island, Florida. Fall. 



19. Chrysopsis pilosa (Walt. ) Britton. Foliage lanate. Stems 3-7 dm. tall, corym- 

 bose above: leaves numerous; blades oblong to oblong-spatulate, 1-6 cm. long, obtuse or 

 apiculate, entire or sparingly toothed, often partly clasping : heads showy : involucres 

 about 1 cm. high ; bracts linear to linear-spatulate, acute or acuminate : ray-flowers with 

 spatulate ligiiles about 1 cm. long. 



In pine lands, Virginia to Florida and Alabama. Fall. 



20. Chrysopsis Berlandieri Greene. Foliage rather canescent. Stems 2-15 dm. 

 tall, more or less branched above : leaves numerous ; blades linear-oblanceolate or oblong- 

 oblanceolate, 1-4 cm. long, acute, entire, hirsute-ciliate near the base, sessile : heads showy : 

 involucres 6-8 mm. high ; bracts linear or linear-subulate, acute, strigillose and somewhat 

 canescent : ray-flowers with bright yellow ligules. [C. canescens T. & G., not DC] 



On rocky prairies, Texas. Spring to fall. 



