162 Rhodora [SEPTEMBER 
Another variant of Ranunculus Cymbalaria which does not seem to 
have been recognized is the pubescent extreme of the small-flowered 
plant. In all accounts, R. Cymbalaria is described as glabrous, and 
in the more saline habitats it certainly is so; but in the interior regions 
it is quite as often pilose on the petioles or peduncles and this pubes- 
cent form is sometimes found on fresh soils near the coast. 
The smallest extreme of the glabrous Ranunculus Cymbalaria, 
Hooker's var. alpinus,! “ minor, foliis apice tridentatis, scapo unifloro " 
seems to be merely a dwarfed extreme such as can be found in unfavor- 
able habitats nearly throughout the range. 
The two noteworthy variants above discussed may be called 
RANUNCULUS CyMBALARIA Pursh, forma hebecaulis, n. f., petiolis 
pedunculisque plus minusve pilosis; floribus 6-9 mm. latis.— In 
apparently less alkaline habitats than the glabrous plant. QurBEC: 
moist hollows in gravelly beach, Carleton, July 21, 1904, Collins & 
Fernald. Princk EDWARD IsrtAND: wet mossy spots with Eriophorum 
angustifolium, Smilacina trifolia, etc., near Cape Wolf, July 3, 1914, 
Fernald & St. John. Hupson Bav recion: Burke. ONTARIO: shore 
of Georgian Bay, Collingwood, August 28, 1908, N. Tripp. MINNE- 
sora: Willmar, Kandiyohi Co., July, 1892, W. D. Frost. Norru 
Dakora: wet prairies, Leeds, June 6 and July 10, 1898, J. Lunell. 
Kansas: Syracuse, Hamilton Co., alt. 3500 ft., July 13, 1893, C. H. 
Thompson, no. 108. Texas: along waters, Canyor, August 7, 1903, 
J. Reverchon, no. 3702. Manitoba: Lake Winnipeg Valley, 1857, 
Bourgeau. ALBERTA: Banff, alt. 4500 ft., June 11, 1906, Butters & 
Rosendahl, no. 1339 (ryper in Gray Herb.). Ipamo: around springs, 
alt. 3500 ft., Squaw Butte, Boise Co., August 18, 1911, J. A. Clark, 
no. 268. 
R. CYMBALARIA, var. saximontanus, n. nom. R. tridentatus HBK., 
var. major HBK., Nov. Gen. et Sp. Pl. v. 42 (1821), not R. Cymbalaria, 
var. major Hook. f. & Thomson, Fl. Ind. i. 30 (1855). Very fleshy, 
rather large: petioles and peduncles more or less pilose: blades orbicular, 
ovate or oblong, 1-3.5 cm. long: peduncles 3-20 em. long, 1-6-flowered, 
usually pilose: flower 1-2 cm. broad: sepals and petals 4-9 mm. long: 
stamens commonly in 3-5 rows; anthers ellipsoid: head of young carpels 
3.5-11 mm. long in anthesis; fruiting head 7-12 mm. long: achenes 
mostly pale, faintly or prominently ribbed, commonly rounded at 
base.— Arid districts of the Rocky Mountain region from Saskatche- 
wan to south-central Mexico, west into Washington, Oregon and 
California.— SASKATCHEWAN: Bourgeau. MoNTANA: West Gallatin 
River, June 9, 1883, Scribner, no. 4a; Brick Glade, Belgrade, May 31, 
1901, E. J. Moore. Wyoming: wet flats, Laramie, July 19, 1900, A. 
Nelson, no, 7629; wet places about the springs, Mammoth Hot Springs, 
! Hook. Fl, Bor,-Am, i. 11 (1829), 
