i 



Mimulus. SCROPHULARIACE^E. 563 



the axis, or separating and borne by the half-partitions on the middle of the valves. 

 Seeds very numerous, small, oval or oblong, mostly with a close smooth coat, often 

 apiculate at each end. Herbs, or one peculiar species shrubby ; with opposite 

 simple leaves, arid axillary flowers on simple peduncles, wholly destitute of bractlets, 

 sometimes becoming racemose by the diminution of the upper leaves to bracts ; the 

 flowers various in color, commonly handsome, usually appearing in long succession. 

 Gray, Proc. Am. Acad. xi. 95. Mimulus, Diplacus (Nutt.), & Eunanus (Be nth.), 

 with Herpestis Mimuloides, Benth. in DC. Prodr. x. 368. 



A genus, as here maintained, of 40 or 50 species, far the greater number Pacific-North 

 American, a few extending to extra-tropical South America, one or two Asiatic, Australian, or 

 even South African. Several species, chiefly indigenous to California, are prized in ornamental 

 cultivation. 



In this and related genera, the lips of the stigma close with a quick movement upon receiving 

 pollen or being otherwise touched. 



1. Corolla with a long filiform tube, very much exserted beyond the narrow pris- 

 matic oblique calyx : stamens strongly didynamous ; the anthers approximate 

 in pairs, forming crosses : style pubescent above : stigma variable : capsule 

 cartilaginous, filling the calyx or its lower part, gibbous at base, sulcate at the 

 septiferous sutures, very tardily dehiscent ; the valves bearing the, placentae : 

 dwarf Californian annuals, in the earlier stage the (purple or variegated] 

 corolla much longer than all the rest of the plant : leaves entire or obscurely 

 few-toothed. (ENOE, Gray. 



M. LATIFOLIUS, Gray in Proc. Am. Acad. 1. c., a species recently discovered by Dr. Palmer on 

 Guadalupe Island, Lower California, accords with this section except in having a shorter and 

 barely exserted tube to the corolla (which otherwise is nearly that of M. Douglasii) : so that this 

 section might as well be merged in Eunanus, to which Bentham referred it ; but the very long aud 

 slender tube of the corolla in the two following species is very characteristic. 



1. M. Douglasii, Gray. Leaves ovate or oblong, 3-5-nerved at base, mostly 

 contracted abruptly into a short petiole : calyx soon very gibbous at base on the 

 upper side : lower lip of the corolla very much shorter than the ample erect upper 

 one, sometimes almost wanting : capsule linear or linear-oblong, nearly terete but 

 strongly 4-sulcate, gibbous or somewhat inflexed at the very base : seeds oval, 

 apiculate at both ends. M. nanus, var. subunifiorus, Hook. & Arn. Bot. Beechey, 

 378. Eunanus Douglasii, Benth. in DC. Prodr. x. 374. 



Gravelly hills and banks, rather common through nearly the whole length of the State. Stems 

 at first flowering half an inch or less, soon rising" to a span in height. Later flowers distinctly 

 peduncled. Calyx about half an inch long ; its orifice very oblique and the teeth short and 

 obtuse. Corolla with tube an inch to an inch and a half long ; the funnelform dilated throat 

 about 3 lines long, deeper pink or purple or spotted, with some yellow below ; the broad and 

 2-cleft upper lip as long as the throat. Stigma in some specimens with a long and lanceolate 

 upper lip and a very short and obtuse lower one, or with two broad and unequal connate lips, or 

 eccentrically disk-shaped, or sometimes with very broad and equal connate lips and appearing 

 saucer-shaped or centrally peltate when expanded, in the manner of the next section : the 

 differences unaccompanied by other distinctions. Capsule 3 to 5 lines long. Seeds hardly half a 

 line long. 



2. M. tricolor, Lindl. Leaves from oblong to linear, with narrowed base sessile 

 or nearly so, obscurely nerved : calyx hardly gibbous at base, ampler toward the 

 very oblique orifice, and the teeth longer : lower lip of the corolla about the length 

 of the upper ; the 5 lobes somewhat similar : capsule somewhat compressed, short- 

 oval or ovate, very obtuse, the anterior and posterior edges acute : seeds obovate, 

 oblique. Jour. Hort. Soc. iv. 222, June, 1849. Eunanus Coulteri, Gray ex Benth. 

 PI. Hartw. 329,. Aug., 1849. 



Var. angustatus, Gray. Leaves small and narrow : tube of corolla (2 inches 

 long) very slender. Eunanus Coulteri, var. angustatus, Gray, Proc. Am. Acad. 

 vii. 381. 



