1924] 
GRANT—A MONOGRAPH OF THE GENUS MIMULUS 209 
toothed, the upper with large teeth, mostly puberulent at the 
nodes; pedicels slender, shorter than the leaves; calyx campanu- 
late to funnelform, 1-1.2 em. long, teeth deltoid-acute, 2-3 mm. 
long, subequal, ciliate; corolla bilabiate, 3 em. long, funnelform, 
yellow, throat ampliate, exserted, about twice as long as the 
calyx, lobes subequal, rounded, 8-10 mm. long; stamens and 
style included, glabrous, filaments thin, flattened; capsule oblong, 
dehiscent to the base, placentae adherent; seeds broadly oval, 
longitudinally wrinkled. 
Distribution: wet places in Japan. 
Specimens examined: 
Japan: Togakushi-san, Province Shinano, 12 June, 1894, without 
name of collector (U. S.) ; Suttsu, Prov. Oshima, 19 July, 1888, 
Tokubuchi (Phil.); Sapporo, 22 June, 1884, Tokubuchi (G); 
Mori, 4 June, 1885, Pére Fourie 327 (M). 
This species is closely related to M. dentatus and M. nepalensis 
but differs from them in its closely sessile and 5—7-nerved leaves. 
38. M. dentatus Nutt. ex Benth. in DC. Prodr. 10: 372. 
1846; Gray in Bot. Calif. 1: 567. 1876; уп. Fl. N. Am. ed. 2, 2!: 
Suppl. 447.. 1886; Greene in Bull. Calif. Acad. Sci. 1: 109. 
1885; Howell, Fl. Northwest Am. 519. 1901; Piper, Contr. 
U. S. Nat. Herb. 11: 509. 1906. 
Perennial from running rootstocks and with pubescent stolons 
above ground, rooting at the nodes; stem simple, erect, 1.5-3.5 
dm. high, sparsely villous; leaves broadly ovate, 2-7 cm. long, 
1.2-3.5 mm. wide, acute, tapering to a short petiole, sparingly 
pubescent, coarsely and saliently dentate on the upper half, 
often tinged with red; pedicels slender, pubescent, shorter than 
the leaves; calyx campanulate, 1.1-1.5 em. long, sparsely villous 
along the acutely angled ribs, teeth triangular-acuminate, 4-6 
mm. long, ciliate, subequal, throat oblique; corolla 3.5-4.5 cm. 
long, golden-yellow, tube short, included, constricted at the apex, 
t almost as broad as long, ventrieose, spotted with brown 
9n the lower side, lobes rounded, 6-12 mm. long, usually erect, 
Sometimes emarginate, sinuses broad; stamens included, fila- 
ments glabrous, anthers villous; style and stigma glabrous, 
included, stigma-lips rounded, equal, fimbriate; capsule oblong, 
included, placentae adherent; seeds oval, favose-pitted. 
