566 SCROPHULARIACE^E. Mmulus. 



dentate to nearly entire (1 to 4 inches long), the margins inclined to be revolute : 

 peduncles in the axils of the leaves, either a little or much shorter than the narrow 

 prismatic calyx : corolla 1| to 2 inches long, in the typical form buff or salmon- 

 color ; the lobes either erose-toothed or emarginate. ^7- Jacq. Hort. Schoenb. iii. 364. 

 M. aurantiacus, Curt. Bot. Mag. t. 354. Diplacus glutinosus & latifolius, Nutt. in 

 Ann. & Mag. Nat. Hist. i. 137. D. stellatus, Kellogg, Proc. Calif. Acad. ii. 18. 

 A common and very polymorphous species, which runs into the following principal 

 but indefinite varieties. 



Var. puniceus, with red or scarlet flowers on mostly slender peduncles : lobes 

 of the corolla simply obcordate or emarginate, or sometimes irregularly toothed : 

 calyx glabrous. Diplacus punicens, Nutt. 1. c. ; Hook. Bot. Mag. t. 3655. D. 

 glutinosus, var. puniceus, Benth. in DC. 



Var. linearis, with red-brown or salmon-colored flowers on very short pedun- 

 cles : calyx commonly pubescent : leaves linear and with nearly entire soon revolute 

 margins, more rigid. M. linearis, Benth. Scroph. Ind. 27. Diplacus leptanthus, 

 Nutt. 1. c. 



Var. brachypus, with salmon-colored flowers of pretty large size (fully 2 inches 

 long), on very short peduncles : calyx viscid-pubescent or villous : leaves linear- 

 lanceolate, entire or nearly so. Diplacus longiflorus, Nutt. 1. c. 



Diy and rocky banks, &c., common from San Diego to San Francisco Bay ; common and very 

 ornamental in cultivation, especially r.s a green-house plant : flowering almost through the year. 

 Even in the wild state it exhibits a great diversity of colors ; but it seems impossible to distin- 

 guish the forms as species. The last variety collected by Coulter (No. 639), near Santa Barbara 

 by Nuttall, and a form of it, connecting with ordinary M. ylutinosus, in San Luis Obispo Co., 

 by Brewer. 



4. Corolla, with short and included proper tube : calyx ivitli plaited-carinate salient 

 angles, 5-toothed, the strong nerve traversing the teeth : style glabrous : stigma 

 %-lipped, the lips ovate or rmmdish and equal : placentoe remaining united in 

 the axis of the capsule, or dividing merely at top (in M. rubellus sometimes 

 completely) ; the thin and often membranaceous valves tardily separating from 

 the axis : annual or perennial herbs. MIMULUS proper. 



* Large-flowered: corolla 1^ to 2 indies long, red or rose-color, with cylindrical tube 

 and throat longer than the limb : calyx oblong-prismatic ; the short teeth nearly 

 equal : anthers hairy or nearly glabrous in the same species : peduncles elongated : 

 seeds with a loose dull epidermis wrinkled lengthwise : leaves several-nerved from the 

 base : root perennial. 



1 2. M. cardinalis, Dougl. Villous with viscid hairs : leaves ovate and the 

 upper often connate, the lower commonly obovate-lanceolate, all erosely dentate : 

 corolla scarlet, with tube hardly exceeding the calyx ; the limb remarkably oblique, 

 the upper lip nearly erect with the lobes turned back, the lower reflexed : stamens 

 projecting. Lindl. in Hort. Trans, ii. 70, t. 3 ; Brit. Fl. Gard. ser. 2, t. 358 ; 

 Hook. Bot. Mag. t. 3560. 



Common along water-courses throughout the State and in Oregon ; much prized in cultivation. 

 Capsule oblong, thin-chartaceous when dry ; the valves tardily separating from the placenta- 

 bearing axis. 



13. M. Lewisii, Pursh. More slender than the foregoing, greener, minutely 

 somewhat viscid-pubescent : leaves from oblong-ovate to lanceolate, merely denticu- 

 late : corolla rose-red or paler (the throat spotted with yellow) ; its tube longer than 

 the calyx ; the roundish lobes all spreading : stamens included. Pursh, Fl. ii. 

 427, t. 20. M. roseus, Dougl. in Bot. Eeg. t. 1591; Hook. Bot. Mag. t. 3353; Brit. 

 Fl. Gard. ser. 2, t. 210. 



Shady or damp places and along streams, throughout the Sierra Nevada and in the northern 

 part of the State, extending through Oregon and to the Rocky Mountains. Capsule as in the 

 preceding. 



