301 



flexuosis, latioribus, brevioribus, penninerviis, margine pla- 

 nis, supra rugosis, sublus tomentosis, foliolis involucri squar- 

 rosis, extus {.omentosis, inflorescentiis oligocephalis , diva- 

 ricatis. — Humboldt in siccis montosis juxta urbem Iba- 

 gue, alt. 700 hex. (regno Novo-Granatensi.) Jul.; Sellow 

 in pluribus locis Brasiliae meridionalis v. c. ad ripas fl. 

 Paraguay etc. Jan. et Febr. 



77. V. Sellowii n. sp. Rhizoma Hgnosum repens 

 inferne radices, superne unum pluresve ramos cauliformes, 

 herbaceos, diametro 1'" subapliyllos, diametro 1"', 2" — 2' 

 allos, simplices aut simplicissimos, teretes, magis minus ve 

 pubescentes, rarius villoso-tomentosos emiltit. Folia pen- 

 ainervia, sessilia, alterna, membranacea, rigida, utrinque 

 seaberrima reticulato-venosa, nervis prominentibus , subtus 

 magis minusve pilosa, ex confertis obovatis s. obovato- 

 oblongis, acutis vel obtusissimis , basi attenuatis, obso- 

 lete serratis — integris, 2 — 5" longis, 4'" — 2 n latis, 

 in rara, remota, linearia, integerrima, 1 — 2" longa, 

 1 — 2"' lata. Cymae scorpio'ides pl. 3 — oo-cephalae, 

 rarius 1 — 2 cephalae spicas simplices solilarias aut ge- 

 minas, spica altera minori meio-saepe 1-cephala fingunt 

 ramosque cauliformes lerminant. Capitula oo - flora , in 

 siccis 8 — 10'" lata, erecta, remota, pseudo-lateralia ses- 

 silia aut breviter pedicellata, pleraque foliis singulis, linea- 

 ribus suffulta iisque pl. superata. Involucri lato - campa- 

 nulati, fructus subaequantis , circiter 6 IU alli foliola coria- 

 cea, sicca, basi 3-nervia, viridia, margine saepius rubro- 

 colorata , rarissime villoso - lanata , oblonga , spinescentia 

 ex acuminatis in obtusa mucronulata. Pappi sordide fla- 

 vescentis ser. ext. brevis ab interiori longitudine latitudi- 

 neque distincta. Corollae glabrae, albae (?). Achaenia 

 oblonga, multicostata , dense sericeo - pilosa , obcompresso- 

 sub 3-gona, dorso convexa. — Forma praeter 1 et oo-ce- 

 phalas insignis est: pygmaea, caule raro 2 pollicari, folia 



