524 
Revista de la Facultad 
Hah. In pratis uliginosis dumosis prope Lago Argentino, anno 
1884 (T. F.). _ 
Ohs. Annuum?; radix elongata crassiuscula (10-15 cnt long.= 
6-10 mm crass.) deorsum gradatim fusoideo-attenuata, simplex, vix 
parce barbatula sordide albescenti-fusca; folia ad basin caiilis con- 
íertiuscula alterna, pericladiis membranaceis dilatato amplexicauli- 
bus (5-8 mm long.=7 mm lat.) plus minusve perspicue 7-11-ner- 
viis, infimis adpressis, superis relaxatis, in petiolis longiusculis 
crectis (15-20 mm long.=2 mm crass.) glabris ventre planis dorso 
convexulis productis, limbis orbiculatis (20 mm long. = 15-25 mm 
diam.) utrinque obtusissime rotundatis (rarius deorsum leniter subcu- 
neatis) .non peltatis, sed saepius marginibus inferís in ápice petioli 
junctis atque lineolam prominulam in superficie ventrali petioli plus 
minusve excurrentem formantibus, membranaceo-crassiusculis, ner- 
viis 5-7 (rarius 9) parum manifestis donatis, margine dense minute 
arguteque denticulato-fimbriatis; folia caulina pauca remota petiolis 
gradatim abbreviatis atque latioribus donata, suprema in pericladio 
sessilia, denticulis marginalibus minus densis atque submajoribus 
mucrofiulato-subspinescentibus armata; caulis subscapiformis erectus 
(20-30 cnt long.=3-4 mm crass.) rectus simplex v. ápice ramulos 
paucos breves gerens; umbellae in ápice caulis v. ramulorum 
acrogenae, foliolis involucri 5 stellato-patentibus, lanceolatis (6 mm 
long. =2 mm lat.) acutis integerrimis. obscure 5-nerviis cinctae 
simplices v. compositae, primariae pauciflorae, ambitu pedunculis 
3 V. 5 foliolis involucri oppositis (10 mm long. =0,5-1 mm crass.) 
umbellas secundarias gerentibus ornatae; pedunculi florales erecti 
tenues (4-5 mm long.), ovario ovato viridi glabro costulato, denti- 
bus sepalinis minutis triangularibus acutis coronato, petalis albis 
lanceolatis emarginato-inflexis acumine acuto longo donatis, disco 
applanato, stylopodiis conicis, stylis breviusculis, staminibus fila- 
mentis petalis brevioribus albis glabris, antheris flavis. Fructus 
desunt. 
Species perpulchra A. pozoides Clos. valde affinis, habitu fere 
Eringü, umbellis saepe compositis a typo nonnihil recedens. 
152. MULINUM MICROPHYLLUM (PcrS.) DC. — DC., IV, f. 79. 
Bab. Vulgatum in altiplanitie glareosa prope Rio Gallegos et Rio 
Saiita Cruz, anno 1882 (C. S.), in Puerto Deseado, San Julia^i et 
Golfo de San Jorge, annis 1894 et 96 (C. A ). 
153. MuLiNUM PROLiFERUM (Cav.) Pcrs. — DC, Pr. IV, 79. — Gay, Fl. 
chil. III, f. 89. 
Hab. Vulgatum in altiplanitie glareosa et in valleculis secus 
Rio Gallegos et Rio Santa Cruz, anno 1882 (C. S.). 
154. MuLiNUM cuNEATUM Hook. & Am. — Bot. Beech. voy. f. 26. 
Hab. Non rarum in valleculis secus Rio Santa Cruz^ anno 1882 
(C. S.). 
