OF THE WASATCH REGION 25 



1. D. blcolor Nutt. Stem erect from a cluster of thickened, 

 fusiform roots. Leaves round in outline, twice palmately- 

 parted; the ultimate segments narrow. Flowers few, rather 

 large, the lateral petals about % inch long, indigo-blue; upper 

 petals white or pale-yellow with blue veins. Pedicels longer 

 than the flowers and fruit. Inflorescence not glandular. Dry 

 hills. May-June. 



2. D. Nelsonii Greene. Stem erect, puberulent but not viscid 

 above, from a cluster of tuberous roots. Leaves firm; the 

 basal ones pedatelj'-divided into linear segments, the long 

 petioles sheathing the stem; the upper short petioled, less di- 

 vided. Flowers few, dark-blue; the lateral petals about % 

 inch long, somewhat pubescent; the lower petals 2-cleft, with 

 a tuft of hairs near the middle. Dry hills. May-June. 



5. RANUNCULUS. Buttercup; Crowfoot. 



Annual or perennial herbs with basal or alternate stem- 

 leaves and solitary or corymbed yellow flowers. Sepals 5, 

 deciduous. Petals 5 or more, each with a nectiferous pit at 

 base inside. Carpels numerous; capitate or spicate; ripening 

 into achenes. 



Achenes spiny 1. R. arveiisis 



Achenes not spiny. 



Achenes longitudinally nerved; stolon- 



iferous 2. R. Cymbalaria 



Achenes not nerved. 

 Plant glabrous. 



Stem hollow, about a foot high. ... 3. R. sceleratds 

 Stem solid, much less than a foot 



high 4. R. digitatus 



Plant rough-hairy 5. R. Macouiiil 



1. R. arvensis L. Corn Crowfoot; Hunger Weed. Erect, 8-18 

 inches high; glabrous or sparingly pubescent. Leaves alternate, 

 the lower ones petioled, broadly wedge-shaped and 3-toothed, 

 or larger and deeply divided; the upper ones sessile. Flowers 

 rather small (% inch across), pale yellow. Achenes 4-8. Along 

 roadsides; introduced. June. 



2. R. Cymbalaria Pursh. (Oxygraphis Cymbalaria (Pursh) 

 Prantl.; Halerpestes Cymbalaria (Pursh) Greene). Strawberry 

 Buttercup. Low. glaucous, spreading by runners. Leaves 

 mostly basal, slender-petioled, subcordate with crenate mar- 

 gins. Head of fruit oblong, longer than petals. Along ditches 

 and around cold springs. April-October. 



3. R. scelerntus eremogenes (Greene). A stout, coarse 

 annual, 8-15 inches high, at length becoming much-branched. 

 Leaves basal or alternate; all 3-parted or divided to near the 

 base. (This distinguishes the variety from the type, in which 

 the divisions do not extend more than halfway to the base.) 

 Carpels in ovoid or cylindric heads, soon falling off. In mud 

 of ponds and around cold springs. June-August. 



4. R. dlgitatus Hook. (R. Jovis A. Nels.) Stem 2-3 Inches 

 high, very glabrous. Roots thickened. Leaves few, digitately- 

 lobed. Flowers 2-3, terminal, the sepals reflexed. Achenes 

 tipped by the Recurved style. In moist soil on hillsides. March- 

 July, 7.000-9,000 ft. 



