2 LEAFLETS. 



species. Everywhere in California and northward the devia- 

 tions from the type seem best treated as marked varieties, or 

 sub-species ; but in Arizona, and southward in Mexico, all the 

 forms have quadrangular stems, as well as a different type of 

 foliage ; with also some other definitely specific characters. 



M. CARDiNALiS, var. GRiSEUS. Stems very stout, but weak 

 and decumbent, much branched, grayish-hoary throughout, 

 but especially as to stem, branches and peduncles, with a vil- 

 lous and somewhat viscid pubescence : leaves broadly oval, 

 closely sessile, sparsely dentate with coarse triangular teeth, 

 the intervals between these teeth denticulate. 



On stream banks of Santa Catalina Island, off the coast of 

 California, May, 1896, Blanche Trask. 



M. CARDINALIS, var. RiGENS. Stems rather slender, per- 

 fectly terete, rigidly upright from roots not very obviously 

 perennial : leaves numerous, ascending, not large, closely 

 evenly and sharply dentate ; peduncles rigid, of twice the 

 length of the leaves : calyx rather short, its tube marked with 

 fine red-purple dots. 



Neighborhood of San Bernardino, in arid southern Califor- 

 • nia ; collected by S. B. Parish, July, 1896 ; in U. S. Herb, 

 under his number 4189. It is in marked contrast with the far 

 northern plant of cool mountain shades in a number of par- 

 ticulars. 



M. CARDINALIS, var. EXSUL. Stems long, stout, decum- 

 bent or reclining, terete, densely leafy; leaves small for the 

 plant, widely spreading, oval above a spatulate base, sessile, 

 auricled-clasping, rather obtuse, not dentate, only lightly ser- 

 rate-toothed, both faces softly viscid-pubescent : calyx short, 

 its teeth deltoid and shortly acuminate : tube of corolla not 

 exserted. 



Inhabits the hot and arid island of Cedros off the coast of 

 Mexico. Coll. Edw. Palmer, March, 1889, n. 681 as in U. S. 

 Herb. 



M. vERBENACEus. Stems not stout, obtusely 4-angled, 

 decumbent, 10 to 16 inches high, simple, densely leafy. 



