406 SCROPHULAEIACE^. 



oblong, 3 to 6 lines long; pedicels nearly 1 to IJ in. long; calyx 3 

 lines long, in flower cylindric, broadening in age; teeth short, equal, 

 triangular; corolla crimson, little bilabiate, 6 lines long or rather less. 

 First known from Tehachapi and since discovered at localities 

 southward. Known in western middle California only from a fruit- 

 ing specimen collected on Ben Lomond (Santa Cruz Co.), Mrs. K. 

 Brandegee, Apr. 28, 1890. 



11. M. rubellus Gray. Dwarf annual, 1 to IJ in. high; stem 

 filiform, solitary from the rosulate tuft of radical leaves, or with one 

 or two smaller stems, all naked below the somewhat corymbose 

 inflorescence of two or three flowers; leaves ovate, 2 to 2J lines long; 

 calyx 2 lines long J as long as the funnelform corolla; corolla yellow, 

 only slightly irregular. 



On triturated rock amidst chaparral, La Jota Plateau, Howell 

 Mountain, May 8, 1893; collected in western middle California only 

 by the author; not uncommon in the Sierra Nevada, but usually 

 much larger. 



12. M. latidens Greene. Annual, glabrous, slender, erect and 

 simple, or commonly with several ascending branches from the base, 

 the internodes below the inflorescence very long; leaves sessile, ovate 

 to ovate-lanceolate, remotely denticulate or entire, J to 1 in. long; 

 pedicels surpassing, often much surpassing the leaves, or the upper- 

 most leaves reduced to bracts and the inflorescence subracemose; 

 flowering calyx cylindric, 3 lines long or less; fruiting calyx ovate- 

 campanulate; corolla nearly white or slightly yellowish, little 

 exserted, the narrow limb almost regular; capsule oblong. — (M. 

 inconspicuous Gray var. latidens Gray.) 



Low wet fields: Sacramento Valley; Napa Valley; Antioch. 

 Apr.-May. Basal leaves often subrosulate and petiolate. Herbage 

 son:ietimes slightly viscid-puberulent. 



13. M. Langsdorffii Donn var. guttatus. Annual, or perhaps 

 sometimes perennial by the production of stolon-like stems at base; 

 stems simple or sometimes branching, one to several from the base, 

 about 1 to 2 ft. high; herbage glabrous or slightly pubescent; leaves 

 more or less elliptical, thinnish, irregularly serrate or dentate, the 

 lower petioled, the upper sessile; petioles mostly shorter than the 

 blades; flowers in a terminal raceme; pedicels shorter than or equal- 

 ing the fiower; calyx in anthesis 3 to 5 lines long, in fruit somewhat 

 longer and nearly or quite twice as broad; upper tooth of calyx the 

 longer, often disposed to be approximate or connivent in age; corolla 

 yellow, with purple or brown dots in throat, f to 1 in. long. — (JI. 

 guttatus DC. M. luteus of Bot. Cal., etc.) 



Sierra Nevada Mountains and high North Coast Ranges. Calyx 

 often nodding in fruit, or borne on a pedicel recurving at apex. 

 June-Aug. The type of M. LangsdorflS was collected on Unalaska, 

 one of the Aleutian Islands. Forms of this species, in addition to 

 the variety above described, abound in all parts of California and are 

 highly interesting, exhibiting as they do great diversity within a 



