116 UNITED STATES AND MEXICAN BOUNDARY. 
near Cruces; Bigelow. Gila valley ; Schott. Napa county, California; Thurber. ` бап Luis 
Obispo; Parry. The capsule of this species accords with the generic character, as given by 
Bentham, &c., except that the m«mbranaceous valves scarcely, if at all, separate from the undi- 
vided placenta, but remain coherent by means of the thin and short partitions. 
MIMULUS GLABRATUS, H. В. K. Nov. Gen. & Spec. 2, p. 370; Benth. l. c. Copper Mines and 
Mimbres, New Mexico; Bigelow; Wright., (1842,) Же. Ojo Francisco and Tucson, Sonora ; 
Parry & Capt. S. K. Smith. "Texas; Wright & Lindheimer. This appears to vary as much 
in size and aspect, and to have nearly as large à geographical range as M. luteus; and M. 
Jamesii is pretty plainly no more than a smaller flowered and almost entire-leaved northern 
form of it. 
MIMULUS BREVIPES, Benth. Scroph. Ind. 2, adnot., & in DC. Prodr. 10, p. 369. Near San Diego, 
California, May; Zhurber, Parry, etc. Chiefly narrow-leaved forms, the same as Coulter's No. 
640. Bentham indicates it as perennial, but our Douglasian specimens show an annual root ; 
so do those of Thurber. The capsule of this species is ovoid-lanceolate, rather firm and chartace- 
ous in texture, loculicidal and splitting through the axis, separating the two placentz, which 
remain adnate to the valves, just as in Diplacus. Through M. rubellus, etc., there is a regular 
gradation as to the dehiscence between this and the Mimuli with a thin and membranaceous 
capsule, and a fleshy placenta, which shows no disposition to split. 
MIMULUS CARDINALIS, Dougl.; Benth. 1. c. Near San Diego, and in the mountains westward, 
California; Parry. The valves of the capsule with the partitions in this species tardily separate 
from the axis, from which the two placente are pretty widely separated, being projected far 
into the cells. 
MIMULUS RUBELLUS, (sp. nov.): tenellus, erectus, e radice annua ramosus, ЕЕГ puberataa ; 
foliis а anguste oblongis lanceolatisve trinervibus fere integerrimis basi angustatis sessilibus ; 
pedunculis folium plerisque superantibus ; calycis oblongi dentibus brevibus aequalibus, ore 
aequali; corolle purpurez tubo haud exserto.—Wet ravines of the Organ mountains and 
Copper Mines, April; Bigelow, Wright, (1483,) and Hueco mountains; Thurber, (135.) Plant 
2 to 6 inches high. Leaves З to 8 lines long, the uppermost acutish. Calyx perfectly equal at 
the summit, even in fruit, 3 lines long, narrow. Tube of the corolla yellowish, the limb 12 
line long, pink or purple. The valves of the capsule are pretty thin and delicate; but the 
placenta splits at the summit in dehiscence, or is bipartible, one half remaining adnate to each 
valve. 
Mimutus (DrPLAcus, Nutt.) GruTrNosus, Wendl. Obs., p. 51. San Francisco, Monterey, and 
San Diego, California. In various forms, and both with red and yellow flowers. Several 
annual Mimuli being dehiscent through the placenta in the same way as the present plant, there 
appears to be no ground for viewing Diplacus as anything more than a marked section of 
Mimulus, distinguished by its shrubby habit, glutinous foliage, and narrow pods of a firm 
texture. 
EuNANUS Fremonti, Benth. in DC. Prodr. 10, p. 374? Dry gravelly places near Monterey, 
May; Parry. Only a single and miserable Specimen was gathered. It seems likely to be а 
state of E. Frémonti, or possibly of Douglasii, with a remarkably abbreviated corolla. 
HznPESTIS CHAMAEDRIOIDES, H. В, К. Nov. Gen. & Spec. 2, р. 369. Santa Cruz, and Sierra 
Verde, Sonora; Wright, (1484,) Schott. Also a variety with simpler and less spreading stems, 
and obscurely toothed leaves (H. nigrescens, Engelm. & Gray, Pl. Lindh. No. 140:) between 
the Pecos and the Limpio; Wright, (443,) and Rock Creek ; Bigelow. 
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