Nama. HYDROPHYLLACE^E. 173 



family). --Dwarf stemless perennials, or possibly biennials (W. N. American), 

 soft-pubescent ; with entire spatulate or oblong leaves, on mostly elongated mar- 

 gined petioles, crowning the caudex or rootstock ; and from their axils sending 

 forth naked one-flowered peduncles, equalling or shorter than the leaves. Parts 

 of the flower occasionally in sixes or sevens. Corolla purplish or nearly white ; 

 the tube and the base of the subulate filaments more or less hairy or hirsute ; the 

 lobes often slightly'unequal. Disk none. Base of the calyx obscurely adnate to 

 the broad base of the conical-ovate ovary, which tapers into the rather stout style : 

 stigmas minute. Ovary 1-celled ; the narrow placentae projecting more or less on 

 incomplete half-dissepiments : ovules 20 or more to each placenta. Capsule 

 loculicidal, 15-20-seeded. Seeds pretty large, with a somewhat fleshy minutely 

 reticulated testa. -- A genus of doubtful affinity, but most probably Hydrophyl- 

 laceous. -- Watsou, Bot. King, 281 ; Gray, Proc. Am. Acad. x. 330, & Bot. Calif, 

 i. 516; Benth. & Hook. Gen. ii. 829. 



H. Californicus, Watson. Leaves copious in a rosulate radical tuft : corolla some- 

 what oblong-campanulate ; the lobes shorter than the tube. Bot. King, 281, t. 30. Ourisia 

 Californica, Benth. PI. Hartw. 327. Hesperochiron latifolius, Kellogg in Proc. Calif. Acad. v. 

 44, a large form. Hills and meadows, Sierra Nevada, California, from the Yosemite north- 

 ward to Washington Terr., and east to the mountains of Utah. Leaves an inch or two 

 long, besides the petiole, into which the blade abruptly contracts or gradually tapers. 

 Corolla from nearly half to three-fourths of an inch long in the largest specimens ; the 

 lobes oblong. Here belongs Nicotiana nana, Lindl. Bot. Reg. t. 833. 



H. pumilus, T. C. Porter. Leaves fewer, crowning the rather slender rootstock: 

 corolla nearly rotate ; its lobes longer than the tube, which is densely bearded within. 

 Hayden, Geol. Rep. 1872, 768 ; Gray, Proc. Am. Acad. x. 330. Vtllarsia pumila, Dougl. ; 

 Griseb. in Hook. Fl. ii. 70, t. 157. Springy and marshy ground, mountains of Idaho to 

 Oregon, Douylas, Geijer, Hayden, &c. Also Plumas Co., California, Mrs. Austin. 



11. LEMM6NIA, Gray. (Named after John Gill Lemmon, the discoverer, 

 a most ardent and successful explorer of E. Californian and Nevadan botany.) 

 Proc. Am. Acad. xii. 162. Single species. 



L. Californica, Gray, 1. c. Small and depressed winter-annual, canescently pubescent, 

 and the calyx white-villous : stem branched from the base, divergently and repeatedly 

 dichotomous : leaves alternate, rosulate at base, and crowded at the summit of the branches ; 

 entire, spatulate and tapering into a short petiole, nearly veinless, 3 to 5 lines long : flow- 

 ers sessile, solitary in the lower forks, cymose-glomerate at the leafy extremity of the 

 branches : sepals very narrowly linear, not widening upward, in fruit 2 lines long and 

 exceeding the short-oval refuse capsule : corolla apparently white, a line long, not surpass- 

 ing the calyx, moderately 5-lobed : styles shorter or not longer than the ovary : placente or 

 half-dissepiments narrow, adhering to the valves : seeds half a line long, somewhat rugose- 

 foveolate in the manner of Conanthus. Desert region of San Bernardino Co., California, 

 about the sources of the Mohave River, May, 1876, J. G. Lemmon. 



12. NAMA, L. (Nam*., a stream or spring, in allusion to supposed place of 

 growth of the original species.) Chiefly low herbs, some few suffrutescent or 

 woody-based (N. & S. American and one Hawaian), of various habit; the corolla 

 purple, bluish, or white ; the stamens sometimes equally, oftener unequally adnate 

 to the base or lower part of the tube. (Besides the following there are several 

 species in the bordering parts of Mexico.) Gray, Proc. Am. Acad. v. 337, 

 viii. 282, x. 330, & Bot. Calif, i. 517, 621. 



1. Low annuals, merely pubescent or hairy : leaves entire : flowers terminal 

 or lateral, or in the forks of the stem. 



