[Ver. 11 
128 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
M. ringens f. Peckii House in Bull. N. Y. State Mus. 1921: 17. 
923 
Perennial by stoloniferous rootstocks, produced late in the 
season, the whole plant glabrous; stem 4-13 dm. high, simple or 
branched, 4-angled, the angles sometimes slightly winged; 
leaves thin, oblong or oblong-lanceolate, 2.5-10 cm. long, .5-3 
cm. wide, acute or obtuse, serrate, rarely entire, tapering to a 
broad, often auriculate-clasping sessile base, or rarely some of 
the leaves with a short, broad-margined petiole, occasionally 
with smaller leaves fascicled in the axils; pedicels stout, 2-3.5 cm. 
long, mostly shorter than the subtending leaves; calyx tubular, 
becoming broadly oblong in fruit, 1.4-1.7 cm. long, strongly 
angled, teeth slender, subulate or aristate, about one-fourth as 
long as the tube, sinuses broad, ciliate; corolla 2.5-3.5 cm. long, 
blue, rarely pink or white, tube exserted, slightly funnelform, 
throat nearly closed, upper lip erect, strongly reflexed, lower lip 
longer and spreading, the margins often erose; upper pair of 
stamens slightly exserted; style exserted, stigma bilamellate, 
with broad, rounded, equal lips; capsule included, broadly oblong; 
seeds oblong, papillate. 
. Distribution: common in wet places from Canada to Florida, 
west to North Dakota, and south to Texas. 
Specimens examined: 
Ontario: Ashdod, 24 July, 1893, Fowler (M); Farm Point, Ga- 
tineau River, Quebec, 20 Aug., 1911, Macoun 80936 (Cornell); 
wet places, Lincoln Co., 29 July, 1897, McCalla 457 (Cornell). 
Maine: river intervale, Orono, Penobscot Co., 29 July, 1895, 
Fernald 364 (M). | à 
New Hampshire: Hanover, 15 July, 1910, Barss (Оге.); Laconia, 
1892, Carter (Cornell). 
Vermont: Barnet, Caledonia Co., 28 July, 1884, Blanchard (М). 
Massachusetts: between South Sudbury and Frami ‚2 
Aug., 1903, Greenman 2112 (М); brookside, Granville, 20 Sept-, 
1913, Seymour 25 (M); meadows, Scituate, 19 Aug., 1870. 
Morong 66 (M); border of stream, Adams, 24 Aug., 1901, Day 
9 (R. Mt.). 
Connecticut: Middletown, Sept., 1835, Buckley (M). 
New York: Keene Valley, Essex Co., 1 Aug., 1891, Schrenk (M); 
