118 CALIFORNIA ACADEMY OF SCIENCES. 



branches a few inches to a foot long: leaves ovate, the lower 

 subcordate, on petioles either equaling or much shorter than 

 the sharply toothed lamina: pedicels an inch or more long, 

 mostly surpassing the leaves: calyx campanulate, the teeth 

 short-triangular, nearly equal: corolla 3 — 6 lines long, from 

 light to deep yellow, sometimes with copper-colored throat. 

 Lindl. Bot. Keg. t. 1225; Benth. in DC. Prod. 1. c. Gray, 

 1. c. M. peduncularis, Dougl. in Benth. Scroph. Ind. 29. 

 Cupraria pusilla, Torr. in Ann. Lye. N. Y. I. 36. 



In moist places from the Rocky Mountains to the Pacific; 

 quite variable, but always known by the albuminous exuda- 

 tion found in no other species of this group but frequent in 

 those of the next. 



h — t- Perennials: corollas yellow, subregular, except in the 

 first species. 



M. Jamesii Torr. & Gray. 



Glabrous, diffuse and creeping: leaves roundish or reni- 

 form, denticulate or nearly entire, all but the uppermost on 

 short, margined petioles: calyx campanulate, 3 lines long: 

 corolla pale yellow, 3 — 6 lines long. — Benth. in DC 1. c. 

 371. (with var. Fremontii.) ; Gray, Man. Ed. 2, 287. M. gla- 

 l>ratus, Gray in Bot. Mex. Bound- partly, not of HBK. 



From Minnesota and Wisconsin to New Mexico and Ari- 

 zona, growing in springs or springy places ; stems rooting at 

 the joints whether in mud or resting on the surface of clear 

 spring water. The species has not been found so far west 

 as California. 



Var. Texensis, Gray. 



Larger; leaves more ovate, seldom subcordate, sometimes 

 laciniately toothed, the uppermost often reduced and the 

 flowers appearing racemose. — Syn. Fi. 277. M. glabratus, of 

 Bot. Mex. Bound, mainly. 



Texas; collected by Wright, Lindheimer and others. 



M. moschatus, Dou^l. 



Villous, slimy and strongly musk-scented: stems spread- 



