54 
Ranunculacese. 
slowly flowing water; rarer than the following; W. Y. 
J. G. . . .?.aquatilis L. 34. 
— FIs rather small. Pets narrower, obovate-oblong, deciduous. 
Stas 7—18. Floating Is gen. 0; if developed deeply' 
3-partite, with cuneiform segments, sometimes petioluled 
and div. like a fan.—a. R. paucistamineus Tausch. Stas 
10—15. Receptacle almost globular. The form with 
floating Is: R. Petiveri Koch p.*)—b. R. Drouettii F. 
Schultz. Stas 5—10. Receptacle ovoid? Carps almost ob¬ 
tuse. FIs. smaller,—c. R. confervoides Fr. 1845 (lutu- 
lentus Perr. Song. 1859). FIs small. Carps slightly com¬ 
pressed, with rather long, recurved beaks. Dwarf pis. 
AY. (Zermatt, Bagnethal).—d. R. Rionii Lagg. (sedunensis 
Rion.). Stas shorter (in the 3 last longer) than the 
head of carpels. Receptacle conic. Carps 80—90 (in the 
last 20—35). W. (Siders, Sion, Saillon, later than the 
last).—As the last, but distrib. 5 Trichophyllus Chaix. 35. 
6 (2). Ls undiv. and gen. entire .... 7 
— Ls divided ........ 8 
7. Rad. ls linear-lanceolate or lanceolate. Seps glabr.— 
b. plantagineus All. Stem with several (up to 7) fls ; Is 
broader.—High Alp. 6 . . . pyrenaeus L. 36. 
— Rad. ls cordate-oval. Seps hairy.—High Alp. (wanting 
in IT.). 6.parnassifolius L. 37. 
8. Cal. rough with reddish brown hairs. Yaried, especially 
on granite, with web-like hairs (v. holosericeus).—High 
Alp. 7.glacialis L. 38. 
— Cal. glabr. or slightly hairy ..... fj 
9- Carps inverted (the hilum at the top of the carp.). Comp. 
the genus Callianthemum. 
— Carps not inverted (hilum at the base) . . 10 
10. Stem 30—90 cm bearing several (in dwarf forms few) 
fls. Caul, ls, at any rate the lower ones, palmatifid, with 
3—7 divisions. Receptacle villous. Pis never entirely 
without hairs. Type of R. aconitifolius . . 11 
— Stem 5—10 cm, 1-fld. Caul. 1. undiv. or, when there are 
two, the lower one 2—3-fid. Receptacle glabr. Pis entirely 
glabr. Type of R. alpestris ..... 12 
11. Stem with spreading branches. Ls div. to the petiole; 
lobes simply acute, those of the upper caul, ls toothed. 
— Damp places and brook-margins, especially in the 
mount, and subalp.*5 . . . aconitifolius L. 39. 
*) The following still require final examination: R. radians Rev. (tri- 
phyllus Wallr. ?) which has the large broad pets of H. aquatilis, but the rather 
shorter peduucle and deeply div. floating ls of R. trichophyllus. V. (Lavigny!) — 
R. Godroni Gren. with the smaller fls appears to be an heterophyllus form 
of paucistamineus. See N. Beitr. Ill, 1. 
