301. 
flexuosis, latioribus, brevioribus, penninerviis, ‚margine pla- 
nis, supra rugosis, subtus tomentosis, foliolis involneri.squar-. 
rosis, extus tomentosis, inflorescentiis oligocephalis,, .diva-, . 
ricatis. — Humboldt in siecis montosis juxta.urbem: Iba- 
gue, alt. 700 hex. (regno Novo-Granatensi.) Jal.; Sellow 
in pluribus loeis Brasiliae meridionalis v. c. ad ripas. fl; 
Paraguay etc. Jan. et Febr. j 
71. P. Sellowii n. sp. Rhizoma ligaosum xepens 
inferne radices, superne unum pluresve ramos cauliformes, 
herbaceos, diametro 1" subaphylios, .diametro 1, 24 — 21 
altos, simplices aut simplieissimos, teretes, magis minusve 
pübescentes, rarius villoso-tomentosos emittit. Folia pen- 
ninervia, sessilia, alterna, membranacea, rigida, utrinque 
seaberrima reticulato-venosa, nervis prominentibus, subtus 
magis’ minusve pilosa, ex confertis obovatis s. obovato- 
oblongis, acntis vel obtusissimis, basi attenuatis, obso- 
lete serratis — integris, 2 — 5" Ilongis, 44 — 2 Jatis, 
in rara, vemota, linearia, integerrima, 1. — 2 longa,. 
1 — 2 lata. Cymae ‚scorpioides pl. 3:.— ©o-cephalae, 
tarius 1 —— 2 cephalae: spicas simpliees solilarias ;aut ge-, 
minas, spica altera, minori meio-saepe 1-cephala :fingunt, 
tamosque cauliformes terminant. -.Capitula. 00. flora, in, 
siceis 8 — 10% lata, erecta, remola, pseudo-lateralia ‚ses- 
silia aut breviter pedicellata, plerague foliis. singulis, linea- 
xibus suffulta jisque pl. superata, Involueri. Iato - campa- 
nulati, fructus subaequantis, eirciter 6 altı foliola coria- 
eea, sieca, basi 3-nervia, viridia, margine saepius rubro- 
eolorata, rarissime villoso - lanata,: oblonga, spinescentia 
ex acuminatis in obtusa mueronulata. Pappi. sordide fla- 
vescentis ser. ext. brevis ab interiori longitudine latitudi- 
neque. distincta. _Corollae glabrae, albae (?). Achaenia 
oblonga, multicostata, dense. sericeo- pilosa, obeompresso- 
sub 3-gona, doxso .convexa. — Forma praeter 1 et o0-ce- 
Phalas insignis est: pygmaea, cnule raro 2 pollicari, folia 
