SCEOPHULAEINEiE. 277 



4. M. gnttatus, DC. An Alaskan species, whose type is in the 

 Sierra Nevada, and eastward. We have but some remarkable varieties, 

 or subspecies. Var. graudis. Perennial, stout and fistulous, 2—5 ft. 

 high; stems terete, mostly simple above the decumbent and somewhat 

 proliferous base: leaves orbicular to round-ovate, 1—3 in. long, the 

 radical petiolate and sometimes lyrate by a few pinnse along the petiole; 

 floral reduced and connate-clasping: raceme pubescent, often faintly 

 musky, not rarely 1V£ ft. long: peduncles slender, I in. long or more: 

 calyx ventricose-campanulate; teeth broadly triangular, the upper one 

 largest: corolla 1—13^ in. long, strongly bilabiate, light yellow, the 

 throat with many small red dots. Var. insignis. Apparently annual, 

 simple or branching, 1—2 ft. high: calyx dotted with red, and large 

 corolla with very large dark red spots on the palate and limb. — The first 

 variety a conspicuous perennial of stream banks and some boggy places 

 among the hills near, the Bay. The second is of Napa and Sonoma 

 counties, and the most beautiful Mimulus in our flora. April — July. 



5. M. glareosus, Greene. Annual, slender, diffuse,' the branches 

 10 — 12 in. long, these and the leaves relrorsely pubescent and slimy: 

 leaves round-ovate, ?4 in. long, on slender petioles, irregularly toothed 

 and slightly lobed, usually with a band of purple spots across the base: 

 pedicels very slender, far exceeding the leaves: calyx-teeth very unequal, 

 the uppermost one much the largest: corolla % — % m - l° n g> strongly 

 bilabiate, yellow, with many purple dots. — Gravelly margins of mountain 

 streams about Mt. St. Helena. July — Sept. 



6. M. arvensis, Greene. Annual, erect, 1— 2, 1 .,' ft. high, stem some- 

 what 4-angled, sparingly leafy, loosely racemose from the middle: lower 

 leaves long-petioled, roundish, coarsely toothed, hastate, and the whole 

 becoming lyrate by the accession of several pairs of small leaflets belpw 

 the main blade: floral leaves so/l-uillous beneath, the plant otherwise 

 glabrous: calyx 3 — 4 lines long, campanulale, purple-dotted, the orifice 

 commonly almost truncate and toothed rather than lobed and unequal, 

 in fr. twice as large: capsule 2 — 3 lines long, compressed. — Plentiful in 

 low fields. April — June; 



7. M. uiisutus, Greene. Annual, erect, % — 1% ft. high, puberulent 

 or nearly glabrous: stem quadrangular and winded, flowering from the 

 base: leaves, ovate to reniform-cordate, acute, coarsely toothed or lobed; 

 the upper floral reduced to bracts; peduncles ascending, short: calyx 

 broad-campanulate, the teeth or lobes very unequal; the upper one in 

 maturity thrice the length of the others; the lower pair bent upwards 

 and lying across and enfolding the other three: corolla comparatively 

 small (% i n ' l° n g)) UMe surpassing the calyx, yellow, with a large dark-red 

 blotch on the lower lip.— Common about springy places in the hills 

 almost everywhere, but especially in Marin Co. April, May. 



