Ranunculus Ranunculus, Ten. Ranunculus Ranunculus, Willd.

10. R. brutius Ten. View in CoL , Prodr. FI. Nap. 1: lxi (1811).

Patentpubescent perennial 30-50 cm, with shortly creeping stock. Basal leaves large, pentagonal-reniform in outline, 3-partite or pedately 5-partite; segments often stipitate, 2- to 3-fid and strongly serrate; cauline leaves resembling the basal but smaller and sessile. Filaments glabrous. Achenes compressed, keeled; beak about as long as the achene, slender, curved. Italy, Greece, Turkey-in-Europe. G r It Tu. R. crimaeus Juz. , Not. Syst. (Leningrad) 22: 5 (1950) from Krym, appears to be closely related to 10, from which it is said to differ in its more dissected leaves and the shorter beak of the achene.

(d) Pedicel terete; sepals patent; receptacle pubescent.

(i) Achenes sharply keeled. (11-22). R. montanus group. Glabrous or pubescent perennials 5-50 cm. Rhizome often with fibres and sometimes with hairs. Basal leaves 3- to 5(-7)-lobed; segments obovate, dentate; cauline leaves deeply 3-to 5-lobed with narrower,usually entire segments. Flowers 1—3(—5), 20-40 mm in diameter. Achenes 2-5-3-5 mm, compressed, keeled; beak 0-5-2-5 mm, hooked. There are a number of closely related species in the mountains of C., E. & S. Europe. The following key may help with their identification. Literature: E. Landolt, Ber. Schweiz. Bot. Ges. 64: 9-83 (1954) and 66: 92-117 (1956). 1 All leaves glabrous or nearly so 2 Stems glabrescent at base; beak as long as achene (Corse)

15. clethraphilus 2 Stems pubescent at base; beak not more than | as long as achene 3 Segments of cauline leaves linear (Alps, N.W. Balkan peninsula, Jura, Pyrenees) 14. carinthiacus 3 Segments of cauline leaves linear-lanceolate or wider 4 Beak as long as achene (Alps, Jura, Schwarzwald)

16. montanus 4 Beak of achene very short (Carpathians, E. Balkan peninsula) 17. pseudomontanus 1 Leaves pubescent, except occasionally the first basal ones 5 Beak very short, appressed to achene; receptacle pubescent at insertion of stamens; segments of cauline leaves linear

(widespread) 21. oreophilus 5 Beak J - j as long as achene; receptacle usually glabrous at insertion of stamens or, if pubescent, segments of cauline leaves not linear 6 Apex of rhizome with numerous 3-4 mm long hairs; cauline leaves often semi-amplexicaul (Pyrenees) 11. gouanii 6 Rhizome glabrous or rarely with few short hairs, sometimes with fibres 7 Hairs of sepals over 2 mm; beak at least | as long as achene

(S.W. Alps, Spain) 22. aduncus 7 Hairs of sepals less than 2 mm; beak usually less than | as long as achene 8 Segments of cauline leaves linear (or, if lanceolate, widest near the base)

9 Beak of achene slender; lateral segments of basal leaves divided for c. | their length (Alps) 20. grenicranus

9 Beak of achene rather stout and rigid, lateral segments of basal leaves usually divided for more than | their length

10 (Pyrenees) 12. ruscinonensis

10 (Appennini and Balkan peninsula) 13. sartorianus 8 Segments of cauline leaves not linear, widest near the middle

11 Leaves sparsely pubescent; beak of achene slender

(Alps, Jura, Schwarzwald) 16. montanus

11 Leaves rather densely pubescent; beak of achene stout,

rigid

12 Receptacle usually pubescent at insertion of stamens

(Balkan peninsula) 18. croaticus

12 Receptacle glabrous at insertion of stamens (N.E.

Italy) 19. venetus

11. R. gouanii Willd. View in CoL , Sp. Pl. 2 (2): 1322 (1800).

Pubescent. Rhizome with 3-4 mm long hairs at apex, usually with fibres. Cauline leaves usually semi-amplexicaul. Sepals rather densely pubescent. Honey-leaves 10-25 mm. Beak at least | as long as achene, rigid. 2« =16. • Pyrenees. G a Hs.