[Vor. 11 
138 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
KEY то THE SPECIES 
A. Calyx-teeth equal; style exserted. 
a. Corolla-tube little longer than the calyx.................. 6. M. cardinalis 
b. Corolla-tube much longer than the calyx. 
а. Pedicels shorter than the leaves; stems mostly prostrate. .7. M. rupestris 
B. Pedicels longer than the leaves; stems erect.......... 8. M. verbenaceus 
B. Calyx-teeth unequal; style included. ..... 9. M. Nelsonii 
6. M. cardinalis Dougl. in Benth. Scroph. Ind. 28. 1835; 
Benth. in DC. Prodr. 10: 370. 1846; D. Don in Brit. Flower 
Gard. 4: pl. 858. 1836; Gray in Proc. Am. Acad. 11: 98. 1876; 
Bot. Calif. 1:566. 1876;Syn. Fl. №. Am. 21: 276. 1878, and ed. 
2, 1886; Greene in Bull. Calif. Acad. Sci. 1: 108. 1885; Manual 
Bay Region, 276. 1894; Conzatti & Smith, Fl. Sin. Mex. 117. 
1897; Jepson, Fl. W. Mid. Calif. 405. 1901, and ed. 2, 378. 
1911; Howell, Fl. Northwest Am. 519. 1901; Eastwood, Fl. 
South Fork King's River, Sierra Club Publ. 27: 64. 1902; 
Abrams, Fl Los Angeles, 365. 1904, and ed. 2, 336. 1917; 
Hall, Yosemite Fl. 222. 1912. 
Erythranthe cardinalis Spach, Hist. Nat. Veg. Phaner. 9: 313. 
1840. 
Diplacus cardinalis Grónland in Rev. Hort. IV. 6:137. 1857. 
M. cardinalis var. rigens Greene, Leafl. Bot. Obs. & Crit. 2: 
2. 1909. 
M. cardinalis var. griseus Greene, Leafl. Bot. Obs. & Crit. 2: 
2. 1909. 
M. cardinalis var. exsul Greene, Leafl. Bot. Obs. & Crit. 2: 2. 
1909. 
А freely branching perennial, villous throughout and more or 
less viscid; stems 2.5-3 dm. long, from a running rootstock, 
hollow, erect and more or less rigid to weak and somewhat pro- 
cumbent, or occasionally climbing over low shrubs; leaves obovate 
or oblong, 2-11 em. long, 1-4 em. wide, sessile by а broad base, 
auriculate, yellowish-green, frequently almost hoary, 3-5-nerv ed 
from the base, thin, margins regularly or irregularly serrate, 
teeth salient and often with a smaller tooth between the in- 
dentations; pedicels stout, longer than the leaves; calyx tubular 
or oblong-prismatic, 1.8-2.5 em. long, often finely dotted with 
red, the ribs more or less tinged with red, teeth 4-5 mm. long, 
