520 SCROPHULARIACE^ MmOLUS 



stems slender, 6-12 inches long, usually decumbent or ascending: leaves 

 ovate, acute or acuminate, coarsely serrate-toothed, 1-3 inches long,8hort- 

 petioled: peduncles about equalling the leaves: calyx-teeth triangular- 

 subulate, half the length of the tube, nearly equal: corolla golden yellow, 

 an inch or more long, the ample throat jiurple-dotted and strongly bearded 

 to the base in two lines inside, the bilabiate limb an inch broad, its lobes 

 entire and ciliate : seeds ovate, acute, scrobiculate, reddish-brown. Along 

 streams in the Coast Mountains, Oregon to California. 



M. hirsutus. Herbage dark green, glabrous below, the inflorescence 

 hirsute, 'stems stoutisb, 1-2 feet high very numerous and cespitose : root 

 perennial by short basal stolons : leaves oblongor oval, obtuse, denticulate, 

 1-3 inches long, the lower ones short-petioled and often laciniately lobed 

 or lyrate : peduncles stout, often more than an inch long : calyx campanu- 

 late in flower, the teeth unequal, the upper one largest, the tube becoming 

 inflated in fruit, often purple-dotted or almost rod, the 2 lower teeth 

 incurving and closing the orifice : corolla bright yellow, an inch long, fun- 

 nelform ; lobes of the upper lip oblong, narrowed at the apex, recurved ; 

 tbe middle lobe of the Ipwer lip 5-6 lines broad, as broad or broader than 

 long, emarginate ; the ttiroat spotted with dark red on the lower side, the 

 pubescent lines reaching its base: stamens not exserted: stigmas fan- 

 shaped, erose-dentate and apiculate : capsule oblong, short stipitate. On 

 wet rocks in the Tualatin and Willamette rivers Oregon : beginning to flow- 

 er about the first of July, 



M. grandiflorns. Herbage pale green and glabrous up to the inflores- 

 cence which is sparsely hairy: stems often stout, 1-4 feet higii, usually 

 solitary or 2-4 together j, root perennial by basal stolons : leaves oblong to 

 ovate, most of them petioled, 1-5 inches long, coarsely toothed aud denticu- 

 late, the lower ones sublyrate : peduncles 1-1)4 inches long : calyx campanu- 

 late, about 8 lines long, its triangular acute teeth unequal, 2-3 lines long, 

 the tube slightly inflated in fruit and more or less spotted with red, the 2 

 lower teeth incurved and closing the orifice : corolla often nearly 2 inches 

 long, bright yellow, lobes of the upper lip oblong, rounded at the apex, erect 

 and slightly recurved, lateral lobes of the lower lip almost square, the 

 middle one broadly cuneate, as long or longer than broad, emarginate; the 

 throat spotted with dark red or brown, the pubescent lines extending to 

 it8_ base: stamens not exserted; stigmas fan-shaped, erose-dentate and 

 apiculate : capsule oblong, stipitate. Growing in wet places along streams, 

 western Oregon and 'Washington : beginning to flower early in May. 



M. Langsdorfli Sttns. ? Herbage light green, often marked with dark 

 brown: glabrous or the. inflorescence minutely pubescent: stems terete, 

 6-2() inches high, usualljf paniculately branched, erect or the base often 

 horizontal and rootingi-fof a few inches, thus perennial : leaves orbicular or 

 ovate, the blade 6-20 lines long, dentate or denticulate, usually sublyrate, 

 purple beneath, all petioled: floral bracts 2-6 lines long, connate-clasping: 

 pedicels slender, about an inch long: calyx campanulate, in flower about 

 4 lines long, often mottled with dark purple, at length much inflated, the 

 4 lower teeth incurved and closing the orifice: corolla yellow, 10-12 lines 

 long fuiinelform; lobes of the upper lip erect, oblong, 4-6 lines long: the 

 middle lobe of the lower lip broadly cordate, pendulous ; the throat usually 

 spotted with dark red, the pubescent lines running to the base : capsule 

 oblong, 3-4 lines long, on a stipe about a line long : seeds oblong. In wet 

 places, California to Alaska and the Rocky Mountains : flowering from 

 early spring until August. 



M. Scouleri Hook. Fl. ii, 100. Glabrous throughout: stems erect, 

 from a stoloniferous base, 1-2 feet high : leaves oblong-lanceolate, 1-2 

 inches long, obtuse or acutish, evenly callous-dentate, the lower tapering 

 into petioles : peduncles 1-2 inches long, much longer than the bracts : 



