94 CALIFORNIA ACADEMY OF SCIENCES. 



fleshy, linear-oblong, acuminate; rays 8 — 10, light yellow; 

 akenes glabrous. 



Mrs. R. M. Austin, Modoc County, Cal. July, 1884. A 

 rather handsome species, in some respects intermediate be- 

 tween S. Whippleanus and S. eurycephalus, less lloccose than 

 the latter, the outline of the leaf very different, and much 

 like that of S. Glevelandi. The peculiar cutting of the mar- 

 gin is distinctive. 



DIPIACUS. 



t 



Calyx tubular, 5-angled, 5-toothed, upper lip of corolla 2- 

 lobed, lower 3-lobed, the lobes spreading, marginate or va- 

 riously toothed or cleft. Fertile s-tamens 4. Stigma bila- 

 mellar. Capsule linear-oblong, closely invested by the calyx 

 and wholly included within it, firm-coriaceous, with a woody 

 tubercular enlargement at the apex, incompletely dehiscent, 

 opening by the upper suture only, from base to near the 

 apex, the valves spreading into a boat-shaped open pod: 

 placentae distinct, borne on the middle of the valves. Seeds 

 small, very numerous. — Californian shrubs with glutinous 

 exudation, and a dendroid-branching pubescence, with fre- 

 quently some flat, stellate hairs intermixed. Flowers 

 short-pedicelled, solitary in the axils, large, red, orange 

 or buff.— Nutt. in Taylor, Ann. Nat. Hist. I: 137. Endl. 

 Gen. 681. Benth. DC Prod. X, 368. Mimulus § Diplacus. 

 Benth & Hook. Gen. II. 946; Gray, Bot. Cal. I. 565, & Syn. 

 Fl. 275. 



A genus quite distinct from Mimulus by its separated pla- 

 centa, the imperfect dehiscence of its folliculiform capsules, 

 its shrubby habit, and branching pubescence. The species 

 of Nuttall are here provisionally restored, in expectation that 

 a more thorough examination of the corollas (in the form of 

 which it is believed good specific characters are lurking) 

 will establish the correctness of the judgment of the author 

 of the genus, who had the advantage of a familiar knowledge 

 of the floral characters, which cannot, in this and allied 

 genera, be gained in mere herbarium studies. 



