1370 APPENDIX 



long, pubescent on the angles: pappus tawny.— Differs from V. pulchella in the nar- 

 row, entire or obscurely toothed leaf-blades and from V. scdberrima in the narrower 

 leaf -blades, larger heads and narrower involucres. 

 In dry pine lands, southeastern Georgia. 



Page 1160, after Vernonia Guadalnyensis, insert: 



15a. Veraonia Reverchonli Gleason. Foliage more or less pubescent. Stems 



5 dm. tall or less, sometimes sparingly pubescent: leaves numerous; blades narrowly 

 oblong-lanceolate, 5-8 cm. long, acute or mucronate, entire, revolute, scabrous above, 

 pubescent beneath: involucres hemispheric, 6 mm. high; bracts oblong, rounded and 

 mucronate at the apex, tomentose, except for a glabrous marginal line, arachnoid- 

 ciliate, erect: achenes not seen: pappus purple-tawny. — Differs from V. Guadalupen- 

 sis in the hemispheric involucres and the arachnoid-ciliate bracts. 



On prairies, northwestern Texas. 



Page 1160, after Vernonia a7igustifolia, insert: 



20a. Vernonia dissimilis Gleason. Foliage pubescent. Stems stout, 8-11 dm. 

 tall, glabrous above: leaves numerous; blades narrowly lanceolate, 10-15 cm. long, 

 firm, acuminate, sharply serrate, except the smaller upper ones, not revolute, scabrous 

 above: corymb rather dense: involucres campanulate, about 4 mm. high; bracts ovate 

 or ovate-lanceolate, obtuse, or obtusish, or the outer ones acute, arachnoid-ciliate, 

 appressed: achenes 2.5 mm. long, with hirsute ribs: pappus bright purple. — Differs 

 from V. angustifolia in the broader and toothed leaf-blades, the archnoid involucre 

 and the obtuse or obtusish bracts. 



In dry soil, eastern Alabama. 



20b. Vernonia concinna Gleason. Foliage glabrous or nearly so. Stems 1 m. 

 tall or less, green, glabrous : leaves numerous ; blades narrowly oblanceolate to oblong- 

 linear, 10-12 cm. long or less, thin, acute, entire or with minute callous teeth, glabrous 

 above, minutely pubescent beneath, flat: corymb rather lax: involucres turbinate- 

 campanulate, 6-7 mm. high; bracts oblong-lanceolate, broader than the slightly 

 spreading outer ones, acute or mucronate, glabrous or slightly ciliate: achenes about 

 3 mm. long, minutely pubescent: pappus purplish-tawny. — Differs from T. angusti- 

 folia in the flat and smooth leaf-blades and the acute bracts of the involucre. 



In hammocks, middle peninsular Florida. 



Page 1161, after Vernonia oUgophylJa, add: 



25. Vernonia cln^rea (L.) Less. Foliage cinereous-pubescent. Stems corym- 

 bose above, 1 m. tall or less: leaf -blades ovate to oblong-ovate, mostly 2-8 cm. long, 

 shallowly toothed, paler beneath than above: peduncles slender: involucres 4-5 mm. 

 high; bracts subulate to linear, acuminate: corollas about 4 mm. long: achenes about 

 1 mm. long, terete or nearly so: pappus white. — Differs from the other species of 

 Vernonia in the terete or nearly terete achenes. 



In hammocks. Key Largo, Florida. Naturalized from the East Indies. All year. 



Page 1165, after Eupatorium capillifolium, insert: 



la. Eupatorium leptophylliun DC. Glabrous. Stems 4-13 dm. tall, with re- 

 curved, secund branches above : leaves numerous ; blades with filiform or linear-fili- 

 form segments: involucres 3.5-4.5 mm. high; bracts long-tipped: corollas whitish: 

 achenes about 1.5 mm. long. — Differs from E. capillifolium in the reeurved-secund 

 inflorescence-branches and the prominently scarious-margined and gradually long- 

 aristate inner involucral bracts. 



In low grounds and swamps, South Carolina to Florida. Also in the Bahamas. All 

 year. 



Page 1170, after Willughbaeya Halei, insert: 



3a. Willughbaeya cordifolia (L.) Willd. Densely pubescent. Stems striate: 

 leaf-blades ovate to hastate, 6-15 cm. long, coarsely toothed, or lobed, cordate at 

 the base: corymbs rounded or rather flat-topped: heads numerous: involucres narrow, 

 but rather stout; bracts oblong to linear-oblong, 7-8 mm. long, obtuse: corollas about 



6 mm. long; lobes linear-lanceolate. — Differs from W. Halei in the obtuse involucral 

 bracts. 



In hammocks, southern peninsular Florida and the Keys. Summer and winter. Also 

 in tropical America. 



