ii- r s> 
ENUIERATION OP THE COMPOSITA 
COLLECTED BY 
B. SEEMANN AND J. POTTS 
IN 
NORTHWESTERN MEXICO. 
BY 
c.o 
04 
ai 
o~t 
0. H. SQHTTLTZ, SIPONTINUS. 
(.Reprinted from Seemann’s ‘ Botany of the Voyage of H.M.S. Herald.’) ) S ■; 
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A 
(Cassiniaceje, C. H. Schultz, Bip. in Flora B. Z. 1852. p. 129.) 
(.Auctore C. H. Schultz, Bipontino.) 
Tribus I. Vernoniaceje, C. H. Scliultz, Bip. in Linnsea, vol. xx. p. 409. 
Subtribus III. Yernonteas, Sz. Bip. 1. c. p. 505. 
Sectio VI. Tbianthiga, DC., Sz. Bip. 1. c. p. 506. 
L, A K V 
NtiW iCRSS 
»OTAN:CAL 
GA.RDBW 
341. Vernonia barbinervis, Sz. Bip., nov. spec. Fruticosa, ramis teretiusculis leviter pubescenti¬ 
bus; foliis elliptico-oblongis, denticulatis, glabrescentibus, punctis resinosis adspersis, reticulatis, 
utrinque ad costam et nervorum exortum pilis articulatis dense barbatis, cum petiolo 4-7 lin. longo 
3-5 poli, longis, 1-fere 2| poli, latis; corymbi rotundati polycepbali capitulis trifloris, pedicellis gra¬ 
cilibus insidentibus; involucro 3 lin. longo, pl. pedicelli duplo longiori, cylindraceo, glabrescenti, 
dilute bnmneo-virenti squamis ovato-lanceolatis obtusis, margine sublaceris; floribus (nondum evo¬ 
lutis) glanduliferis, pappi radiis albis, longiuscule dentatis. Sierra Madre (Seem. coi. n. 1998). 
Sectio YI b . Ebemosis, DC. Prod. vol. v. p. 77, Sz. Bip. in Linmea, vol. xx. p. 506. 
342. Vernonia Steetzii, C. H. Schultz, Bip., nov. spec. Fruticosa, glabrescens, ramis teretibus; 
foliis ovato-ellipticis, coriaceis, penninerviis, margine minutissime denticulatis, cum petiolo brevissimo, 
lin. longo, 3-4 poli, longis, lf-2J poli, latis, utrinque punctis resinosis obtectis; corymbi poly- 
cephali capitulis plerumque ternis ad apicem ramulorum sessilibus, unifloris; involucro dilute brunneo 
24 lin. longo turbinato squamis valde caducis, ext. minimis, reliquis ovato-lanceolatis, acutiusculis ; 
floribus punctis glanduliferis obsitis; achaeniis turbinatis, cano-hirtis; pappi nivei denticulati serie 
ext. breviore non valde distincta. Sierra Madre ( 11 . 1997, specimen sinistrum) . 
Var. callilepis, Sz. Bip.; foliis duplo minoribus, paulo longius petiolatis, involucri squamis non 
tam caducis, purpurascentibus. An spec. distincta? (n. 1997, specimen dextrum.) 
Vocavi in memoriam amici Dr. J. Steetz, Hamburgensis, Cassiniaceologi peritissimi. 
B 
