BUTTERCUP FAMILY 



541 



flowers 6 to 12 lines broad; sepals not reflexed; petals much longer than the 

 sepals, brilliant gold; achenes flattened, keel-margined all around, 1 line long, 

 bearing a short stout somewhat curved beak which is bent or hooked at tip. 

 European species, sparingly naturalized in marshes along the north coast. 



Locs. Berkeley, Jepson 9197 (in 

 lawns), 8323a; Bear Valley, Marin Co., 

 Jepson 8292 (= var. villosus Lamotte, 

 the hairs wide-spreading) ; Humboldt 

 Bay. 



Refs. RANUNCULUS REPENS L. Sp. PI. 

 55-i (1753), type European; Fern. Khod. 

 21:169 (1919). 



15. R. macounii Britt. Peren- 

 nial ; stems stoutish, trailing or re- 

 clining, rarely rooting at the nodes, 

 1 to iy 2 feet long; general aspect 

 similar to R. orthorhynchus ; stems 

 and petioles hispidly hirsute with 

 spreading hairs; leaves 3-foliolate, 

 incisely 3-cleft, with laciniate and 

 sharply toothed segments; flowers 

 relatively insignificant (4 to 5 lines 

 broad) ; petals little surpassing the 

 early deciduous sepals; heads of 

 achenes large, dense, globular or 

 somewhat oval ; achenes somewhat 

 flattened, carinate-margined all 

 around, 1 to l 1 /^ lines long, with a 

 short-lanceolate straight] sh beak 1/2 

 line long. 



Nevada to Oregon and British Columbia, entering California in Modoc Co. 

 East to the Atlantic. 



Locs. Devils Garden, Goose Lake, Austin $ Bruce. Truckee Valley, w. Nev., Doten. 



Eefs. RANUNCULUS MACOUNII Britt. Trans. N. Y. Aead. ScL 12:3 (1892). B. hispidus 

 Hook. Fl. Bor. Am. 1:19 (1829), type loc. British America. 



16. R. bloomeri Wats. (Fig. 108.) Stems erect or ascending, 5 to 18 inches 

 high, from a cluster of thick-fibrous or even slender-fusiform perennial roots; 

 herbage somewhat succulent, glabrous or a little hairy, especially on the leaf 

 bases; basal leaves 3 foliolate (or a few T simple), on petioles 6 to 14 inches long; 

 leaflets (as well as the simple blades) ovate to roundish, obtuse to cordate at 

 base, coarsely dentate, sparsely incised, or 3-lobed s usually petiolulate, % to 2 

 inches long; flowers few and large, 1 to li/2 inches broad; petals 5, emarginate 

 at apex, the greenish area at base conspicuous and the nectar-gland large ; acheues 

 turgid, li/2 lines long, tipped with a slender subulate beak as long. 



Low fields near the coast from San Mateo Co. to Contra Costa and Mendocino 

 cos. Feb. -Apr. 



Locs. San Mateo. Eastwood; Hillsboro, Inez Smith; Mission Hills, San Francisco, T. 

 Brandegee; Oakland, Drew; Happy Valley, Contra Costa Co., Gardner; Olema, Jepson 4040; 

 Rutherford, Jepson; Calistoga, C. F. Baker 1995; Healdsburg, Alice King; Long Valley, 

 Bolander 4729. 



Refs. RANUNCULUS BLOOMERI Wats. Bot, Cal. 2:426 (1880), type loc. near San Francisco, 

 H. G. Bloomer; Jepson, FL W. Mid. Cal. 200 (1901). 



Fig. 107. RANUNCULUS REPENS L. a, flowering 

 branchlet and basal leaf; b, head of achenes. 



x y 2 . 



