8 



lobis apiculatls, inlegerrimis, terminall obtuslssimo quam 

 laterales acuti majori, 5 — 8"' longa, 5 — 10'" lata; 

 caulina sessllla, allerna, linearia, acunilnala, integerrima, 

 basi aequali, 3 — 10'" longa, \ — 1"' lala, supenie sen- 

 sim sensimque minora et rariora. Capitula 2'" alla, sub 

 10-flora. — Sellow misit e Brasilia tropica, (v. sp. s. co.). 



Fig. 15. ilos. — 16. achaenium e. neclarium, — 17. 

 Involucri foliolum quoddam. 



2. P. bupleurifoUa n. sp. Foliis radicalibus elon- 

 gatis, lineari-lanceolatis, inlegerrimis. 



Planta Iota (achaeniis exceptis) laevis. Caules 1| — 2 

 et ultra pedales, rigidi, erecti, superne ramosissimi, ramis 

 divaricalissimis valdeque elongalis, basi in rhizomata tube- 

 rosa non incrassali, unus rarius duo, accessorio tune de- 

 blliori, e radice fibrosa, forsilan annua^ fibris plurimis va- 

 lidis simpliciusculis , oriunlur. Folia radicalia conferta, 

 mulla, elongala, lineari - lanceolala , obtusa, inlegerrima, 

 penninervia, nervis secundariis cum primario angulum 

 acutissimum formantibus siniplicissimisquc, aut uninervia, 

 basi in petiolos piano -dilalatos caulemque imum vaginan- 

 tes longissime attenuala, 3 — 6" longa, 2'" lata; caulina 

 altenia, dislanlia, linearia^ obtusa, basi magis minusve cor- 

 dala, saepius denliculala, caulem amplexanlia, 3< — 1" 

 longa, 2'" lala, summa minima, squamaeformia , basi ae- 

 qualia. Capllula iis praecedentis parum majora. — Sel- 

 low legit in Brasilia meridionali. (v. sp. s. oo.) 



3. P. Iteterophylla n. sp. Foliis caulinis pinnati- 

 fido - dentatis, ramis inflorescenliae omnino laevibus. 



Planla tota laevis. Caules filiformes, erecli s. pro- 

 cumbenles, simpllces, in inflorescenliam parum ramosam, 

 ramis elongalis valde divaricatis, divisi, 4 — 6" alti, plu- 

 res (2 — 6) e radice fibrosa, verisimiliter annua, fibris 

 tenerrimis, parum ramosis, prodeunt. Folia tenerrima, pel- 

 lucida, radicalia petiolata, lyrala, lobo lerminali maximo. 



