50 Rhodora [Marcu 
macranthus, is frequent in rich gravelly thickets along the coast from 
the lower St. Lawrence and western Newfoundland to York County, 
Maine, extending up the St. Lawrence system to Michigan; and, 
like var. pilosus, it reappears on the Pacific coast from Oregon to 
Alaska, crossing thence to eastern Asia, where it occurs at least in 
Amur, Manchuria, and Japan. In Germany an extreme of L. palus- 
tris has been reported under the name var. pilosus as “selten,” but 
judging from the illustration given by Reichenbach the plant which 
reaches Germany is nearer the broad-leaved plant here under dis- 
cussion, and, as far as the writer can find, this plant has no name 
except that given it by Mr. White under L. myrtifolius. 
The conclusions reached in this study may be summarized in the 
following synopsis. 
* Plant comparatively stout, the winged or sometimes wingless stem 5 
(rarely only 3)-12 dm. high, excluding the wings 1.5-3 mm. in diameter below 
the lowest peduncle: the middle leaves with 2-5 pairs of elliptic to lanceolate 
or oblanceolate leaflets 3-8.5 em. long and 7-23 mm. wide: peduncles 3-5 
(rarely 8) flowered: flowers 1.5-2.5 cm. long. 
L. PALUSTRIS L. Stems, leaves, etc., glabrous.— Sp. Pl. 733 (1753). 
— Lower St. Lawrence River, Quebec, to Manitoba, south to York 
County, Maine, Lake Champlain, Vermont, northern and western 
New York, northern Ohio, Illinois, and Wisconsin; Oregon; also 
Eurasia. The following eastern specimens are considered typical. 
QueEBEC: St. Lawrence River, below Quebec, July 9, 1905, J. R. 
Churchill. Marne: Van Buren, 1881, Kate Furbish; gravelly shore 
of Aroostook River, Fort Fairfield, Sept. 9, 1896, and Masardis, 
Sept. 8, 1897, Fernald; river-thicket, Presque Isle, July 14, 1902, 
Williams, Collins and Fernald; margin of Meduxnekeag River, 
Houlton, Aug. 12, 1909, Fernald, no. 1956; low thicket back of Wells 
Beach, July 22, 1898, Kate Furbish, July 23, 1898, Fernald; Ogunquit 
Beach, Wells, June, 1898, Kate Furbish. Vermont: Garden Island, 
Lake Champlain, June 7, 1881, E. & C. E. Faxon; lake shore, North 
Hero, August 20, 1904, E. Brainerd. New York: Niagara Falls, 
1821, Torr. & Gray Fl. Onto: Huron River, Erie County, May 31, 
1895, E. L. Moseley. Wisconsin: Milwaukee, Lapham. ILLINOIS: 
Chicago, Babcock. Onrarto: Michipicoten River, Loring. MANI- 
TOBA: Brandon, July 18, 1896, J. Macoun, no. 12,528. 
Var. macranthus (T. G. White) n. comb. Similar, but stem, 
leaves, calyces and pods finely pubescent.— L. palustris y, Torr. € 
Gray, Fl. i. 276 (1838). L. myrtifolius macranthus T. G. White, Bull. 
Torr. Bot. Cl. xxi. 448 (1894). L. palustris, var. pilosus of various 
authors, not Ledeb.— Lower St. Lawrence River, Quebec, and west- 
ern Newfoundland to York County, Maine, west chiefly along the 
