290 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Ser. 



and 5 mm. long. Calyx glandular, subequally cleft before and behind, with 

 the divisions twice as long as the tube, surpassing the corolla, each with two 

 narrow, linear lobes 5-6 mm. long, extending below the throat of the in- 

 conspicuous corolla. Corolla 7 mm. long, the lower lip longer than the 

 galea, the three lobes thin, ovate-orbicular, obtuse, 2 mm. wide, somewhat 

 saccate below ; galea with the middle portion of thicker texture than the 

 membranous sides, three-toothed at apex. Stamens with the upper pair of 

 anthers exserted, the lower included, each distinctly two-celled, clothed 

 with a few long hairs at base. Pistil capitate, .5 mm. in diameter, exserted; 

 ovary lanceolate. Fruit and seeds unknown as the plants were too young. 



This is an alpine species found only above timber line. 

 It is related to the group formerly included under Ortho- 

 caj'ptiSf section Castilleioides, but differs from all other 

 species in the peculiar corolla, it being the only species 

 described with the galea shorter than the lower lip. 



Collected by the author on Harrison's Pass, above East 

 Lake, July 9, 1899. 



There are either one or two other low, alpine species in 

 the same region which seem to be related to C. pallida 

 Kunth, but the material is too scanty for satisfactory deter- 

 mination. 

 ^ 9. Mimulus bioletti, sp. nov. 



Annual, branching diffusely, chiefly from the base, about 2 dm. high, 

 glandular-villous throughout, except the corolla. Leaves near the root 

 spatulate; cauline leaves rhombic obovate to lanceolate, thin, tapering to a 

 broad petiole, or sessile, sparingly serrulate or entire, 2-4 cm. long, 2-15 mm. 

 broad. Flowers axillary, on slender, upward-spreading peduncles, almost as 

 long as the internodes, generally shorter than the subtending leaves. Calyx 

 tubular, 8 mm. long when in flower, 12 mm. in fruit, often purplish-dotted 

 below the middle, plicately carinate-angled, the ribs rugose, rounded; divi- 

 sions deltoid, with the margins involute, the obtusely pointed apex spreading 

 outwardly. Corolla as long again as the calyx, with ampliate throat and 

 scarcely two-lipped border, crimson, the upper lip with a yellow blotch dotted 

 with crimson in the throat; limb 12-15 mm. across, with divisions rounded, 

 crenulate, or entire. Stamens and style included; the former four in two 

 sets, each united by the anthers, one set longer than the others; anthers 

 ciliate, explanate, one above the other; stigma bilammelar, cuneate in out- 

 line. Capsule included in the rigid calyx-tube, obtusely four-ribbed, opening 

 at the sides from the base up; placenta free, except at the top; seeds numer- 

 ous, minute. 



This belongs to section Eumimulus Gray, and is most 

 closely related to M. falmeri Gray. It differs chiefly in 

 the larger flowers and different calyx. 



