D. LÜIZKT. 
corsTiuBUTior^ a l’étude des saxifrages. 
303 
s. iTiajor Luiz. et Neyr. — Laxiusciila, caullhus floriferis 9-12 cm. altis^ 
S-1 o-floris, haucl raro divaricatis (S. divaricata Ram.! in lierb. Drakel). 
Mt Péguère! (Neyraut!) 
y. pruinosa Lap. — Folia suprabasilaria ad moduin spcculi in vivo nitida; 
crustis albidis valde induta. Mt Péguère! (Neyraut!) 
Var. îaciniata Luiz. et Neyr. — Laxa vel laxissima, surculis elongatis; 
caulibus floriferis 7-10 cm. altis. Folia basilaria longe algue auguste petio- 
lata, profunde 5-7-fida, laciniis angustissimis subparallelis. Mt Péguère ! 
(Neyraut!) 
Saxifraga nervosa Lap. — S. intricata Lap. vulgo humiiior secl 
robustior, præcipue supra 1 500 m. ait., dense vel laxe cæspitosa, obscure 
virens, viscosissima atque suaveolens, resinacea, pilis brevibus glandulosis 
plus minusve dense obsita; caudiculis fruticulosis vel lignosis, foliis vetustis 
fuscis patulis vel reflexis dense vel laxiuscule obtectis; caulibus floriferis 
erectis, 3,5-N,ü cm. altis, sæpius monophyllis, rarius 2-3-phyllis vel nudis, 
laxe paniculatis 3-22-floris [vulgo G-i 0), pedunculis plus minusve elongatis 
vel patulis, bifloris, rarius unilloris vel 3-4-b-üoris. Rractea inferior vulgo 
cuneata, 3-5-fida, raro indivisa. Folia prophylla sublinearia integra 
obtusa; caulina vulgo cuneata, petiolata vel in petiolum attenuata, limbo 
profunde tripartito, lobis linearibus obtusis plus minusve divaricatis, late- 
ralibus haud raro bifidis; suprabasilaria valde sulcata, in stipite vulgo brève 
vel subnullo radiatim aggregata, vel in stipite rarius elongato sparsim 
disposita, nunquam in pénicillium agglutinata, plerumque 3-5-fida, rarius 
indivisa lineari-subspathulata, inferiora elongata superioribus longiora, 
rigida, auguste atque longe lineari-petiolata. petiolo basi dilatato, limbo 
obovato breviter unguiculaiim attenuato, profunde tripartito, lobis vulgo 
eleganter divaricatis., lanceolato - vel elliptico-linearibus, obtusissimis 
parum inæqualibus; basilaria patula vel reflexa, grosse nervosa, petiolo 
basi plus minusve dilatato petiolata, limbo obovato vel cuneato profunde 
tripartito, lobis sublinearibus porrcctis obtusis, rnedio lateralibus vulgo 
2-3-fidis atque externe divaricatis haud raro breviore; infrabasilaria patula 
vel reflexa, rarius stricta, sessilia vel subsessilia vel unguiculatim atte¬ 
nuata, cuneata, basi haud vel vix dilatata, 3-5-partita, lobis brevibus ellip¬ 
tico-linearibus subdivaricatis obtusis, nervosa, nervis plus minusve 
prominentibus. Petala elliptico-ve] obovato-oblonga, vulgo basi rotundata, 
alba, trinervia, nervis usque ad medium limbi valde luteolis vel virescentibus, 
circiter 4,o-o mm. long a atque 2,3-3 mm. lata, laciniis calycinis ovato-vel 
elliptico-linearibus obtusissimis I x [2,3-3,0) longiora atque latiora. Styli 
atque stamina laciniis breviora vel eas haud superantia. Capsula globosa 
subexserta stylis divaricatis coronata. Semina oblongo-ovoidea atrofusca, 
carinata, minutissime elevato-punctata. 
a. vulgaris Luiz. — Densiuscule cæspitosa, rosulis axillaribus sessilibus 
vel breviter stipitatis; caulibus floriferis 3-7 cm. altis, 7-1O-floris. 
[3. minor Luiz. — Dense cæspitosa, rosidis axillaribus sessilibus; caulibus 
floriferis 3,3-4,3 cm. altis, 3-7-floris. 
y. major Luiz. — Laxe cæspitosa, robusta, rosulis axillaribus sessilibus 
vel breviter stipitatis; caulibus floriferis 7-F2 cm. altis, S-lO-floris; folia 
infra b as il aria re flexa. 
