498 MINNESOTA BOTANICAL STUDIES. 
4 to 7, bright yellow, 2 to 3 lines long, exceeding the sepals; 
stamens many: akenes flattened somewhat; beak minute, sharp. 
Coast of Arctic America, Newfoundland; near ponds and lakes, 
New Jersey to California: Greenland, Europe, Asia. 
Var. Gormani n. var. 
LF. Gormant GREENE, Pitt. 3: g1. 1896. 
Like the type, but with leaves broadly ovate or deltoid-ovate, 
acute, few-toothed, 6 to 8 lines long. Near Crater lake, south- 
ern Oregon. 
go. R. Unalaschensis Bess. ex Ledeb. Fl. Ross. 1: 32. 
1841. 
fe. Flammula var. intermedius Hook. Fl. 1: 11. 1829. 
fe. reptans var. intermedius Torr. & Gray, Fl. 1: 16. 
1838. 
fe. Flammula var. Unalaschensis LEDEB. ex Regel, Bull. 
soc! Nat. (Mosc. 34%: pt. 2's) 41/1868. 
fe. repians var. strigulosus FREYN, Deutsch. Bot. Monats. 
Sct iss | Son: 
FR. intermedius HELLER, Bull. Torr. Club, 25: 280. 
1898. Not Poir. nor Eaton. j 
This differs from /?. repéans in its more robust habit, longer 
peduncles, leaves larger, sometimes being 3 to 5 inches long 
and 2 to 6 lines wide. Newfoundland past the Great Lakes to 
Oregon and California, northward. Europe. Asia. 
g1. R. microlonchus GREENE, Erythea, 4: 122. 1896. 
Allied to At. veptans, often more hairy; stem slender, some- 
what ascending, 1-few-flowered : radical leaves in a tuft, shaped 
as in that species or a little broader; stem leaves few, short 
petioled to subsessile: flowers 4 lines broad; petals 5 to 8, ob- 
tuse; sepals spreading: akenes as in that species but with a 
short, stout, blunt beak: head of fruit depressed-globose. 
Northern Idaho. 
92. R. trachyspermus ENcELM. ex Gray Pl. Lindh. 1: 3. 
1850. 
fe. trachyspermus var. angustifolius ENGELM. 1. c. 
Annual: plant glabrous, % to 2 feet high, sometimes rooting 
at the lower nodes: leaves slender-petioled, oblong to linear 
lanceolate, entire or denticulate, bases often tapering ; petioles 
of stem leaves expanded near the bases: peduncles rather short ; 
