Nama, IIYDROPHYLLACE^E. 517 



H. PUMILUS, Porter ( Villarsia pumila, Dougl. ; Griseb. in Hook. Fl. ii. 70, t. 157), has fewer 

 leaves from a more slender rootstock, and a nearly rotate corolla with lobes longer than the tube, 

 this densely bearded within. It grows in springy or marshy ground, in the Rocky Mountains of 

 Idaho and Northern Utah (near Ogden, Haijdcn), &c. 



11. NAMA, Linn. 



Calyx deeply 4-parted. Corolla funnelform or somewhat salverform; the tube 

 destitute of internal appendages. Stamens often unequal, and unequally inserted, 

 included. Styles 2, distinct to the base : stigmas somewhat capitate. Capsule 

 thin, completely or incompletely 2-celled by the meeting or approximation in the 

 axis of the two thin and dilated placenta?, 2-valved ; the valves entire. Seeds usu- 

 ally numerous. Low herbs or suffrutescent plants ; with entire leaves, and purple, 

 bluish, or white flowers. Gray, Proc. Am. Acad. v. 337, viii. 282, & x. 330. 



The species are all American, excepting one. in the Sandwich Islands, most numerous near and 

 in Mexico. Of the seven known within the United States four inhabit California ; and a fifth, 

 N. stenocarpum, Gray, common on the southern border of Arizona (and well marked by its almost 

 linear capsule) may yet be found near the southeastern frontiers of our State. 



1. Annuals, pubescent or hirsute : flowers terminal and lateral or in the forks, short- 

 peduncled or sessile : seeds with a thin and translucent close coat. 



1. N. hispidum, Gray. A span to a foot high, repeatedly forked, hirsute or 

 hispid : leaves linear-spatulate, most of the upper ones sessile : flowers lateral and 

 solitary, or 3 to 5 in terminal and one-sided nearly bractless clusters: sepals narrow- 

 linear, hardly if at all broadened upward, shorter than the purple corolla : capsule 

 narrowly oblong, 30-40-seeded : seeds nearly smooth. 



Along the Rio Colorado (mostly a low form, witli soft pubescence, and occasionally 3 or 4 styles 

 and placentae!), thence east to Texas. 



2. N. demissum, Gray. Dwarf and depressed, commonly 2 or 3 inches high, 

 pubescent, hirsute, or sometimes rather hispid : leaves linear-spatulate, all or most 

 of them tapering into a petiole : flowers subsessile in the forks : sepals very narrow- 

 linear, not at all broader upward, usually much shorter than the bright purple or 

 "crimson" corolla: capsule short- oblong, 10 - 16-seeded. 



Interior desert region, from the Rio Colorado and the Mohave, through "W. Arizona, Nevada, 

 and Utah, to Washington Territory. Flowers showy, as in Conanthus, which it much resembles 

 (but that has the styles united into one) : corolla 4 or 5 or even 6 lines long : filaments very 

 unequally inserted, somewhat subulate. Seeds much larger and fewer than in the preceding. 



3. N. Coulteri, Gray. A span high, diffusely branched, hirsute-pubescent and 

 somewhat viscid : leaves short, oblong-spatulate, the lower tapering into a petiole : 

 flowers short-pedicelled in the forks : sepals with spatulate-dilated tips, not half the 

 length of the narrow funnelform corolla : capsule narrowly oblong, 50 - 60-seeded : 

 seeds obscurely wrinkled or pitted. 



No. 463 of the Californian collection of Coulter not since found ; perhaps really collected in 

 Arizona or Mexico. 



2. Suffruticose, silky-woolly : flowers clustered : ovary and styles hirsute. 



4. N. Lobbii, Gray. Depressed and procumbent, forming broad matted tufts ; 

 the older stems woody and rigid : leaves narrowly spatulate or linear, tapering to a 

 nearly sessile base, an inch or two long ; the younger ones white with the soft vil- 

 lous wool ; the older becoming naked and their margins revolute, more or less per- 

 sistent : flowers clustered in the upper axils and at the summit : sepals very slender, 

 more than half the length of the funnelform purple corolla (this half an inch long). 



On rocks, &c., not rare in the northern part of the Sierra Nevada, first collected by Lobb. 

 Fruit not yet seen. 



