260 CALIFORNIA ACADEMY OF SCIENCES. 



and until recently the only specimens in our herbarium 

 were those collected by Joseph Clark, of Mendocino County, 

 for whom he named it. His description was read at the 

 meeting of the Academy of June 4, 1877, but as the society 

 published nothing from 1876 to 1884, the manuscript, with 

 a colored drawing showing the flowering plant of the nat- 

 ural size as well as the dissected parts, remained in the 

 herbarium with the specimens. Some curious errors in his 

 drawing and description having been adopted by the author 

 of 31. angustatiis, require correction. — The calyx is some- 

 what funnelform, the tube, after flowering, contracting 

 above the short ovate capsule; orifice oblique; the upright 

 obtuse teeth about a third as long as the tube. The seeds, 

 like those of 31. tricolor, are regularly reticulated on the sur- 

 face. The capsule is 1-2 lines in length, ovate, pointed, only 

 slightly indurated at the anterior and posterior sutures, and 

 very slightly sulcate at the lateral ones. The dehiscence 

 is circumscissile at the largest part near the base, the pla- 

 centae separating very tardily if at all. 1 have not yet 

 been able to determine whether they break off at the base 

 or, remaining attached to it, break away from the septifer- 

 ous sutures. This seems a very anomalous capsule for 

 a 3Iimulus, yet the species is so closely related to tricolor 

 that it was for a long time included under it as a variet}^ 

 and careful examination shows that it is but a modifica- 

 tion of the ordinary formation in Emianus as well as in 

 Diplaciis. It can readily be observed in the latter, the 

 opened capsule soon falling from the base, which retains its 

 portion of the septum. 



M. ATEOPUEPUEEUS Kell . (M. Kelloggii CiWYAn.) and 31. 

 latifolius are both dehiscent in the ordinary manner of Euna- 

 oms — completely by the posterior suture, and the valves so 

 firmly coherent in front that if separated by violence the 

 capsule tears irregularly and not along the suture. The 

 last species, in flowering specimens brought by Walter E. 



