OF ARTS AND SCIENCES. 367 



lines long: seeds strongly tuberculate on the back, not crested. — On 

 a peak south of Rucker Valley, Arizona; J. G. Lemmon, 1881. 

 Allied to S. Thnrheri. 



AuENARiA PUsiLLA. A dwarf slender annual, an inch or two 

 high, resembling A. Californica in its habit and short thick bluntish 

 leaves, but the narrower lanceolate sepals acute or acuminate and 

 obscurely 1-nerved, and the petals wanting or very small : capsule 

 oblong-ovate, as long as the sepals: seeds turgid, smooth. — Collected 

 on the plains about Yreka, California, by Rev. E. L. Greene, in April, 

 187G; at White Salmon, Washington Territory, by W. N. Suksdorf, 

 in 1880; and at The Dalles, Oregon, by J. & T. J. Howell, 1882. 

 Greene's specimens were referred to A. Californica in Uot. Calif. 

 2. 435. 



AuKNAHiA MACRADENiA. Perennial, with a branched woody root- 

 stock, the herbaceous stems a foot high, glabrous throughout excepting 

 the slightly ciliate base of the riiiid linear-subulate pungent leaves, 

 which are i to 2 inches long: flowers large, on slender often elongated 

 pedicels ; sepals somewhat fleshy, with scarious margins, ovate, acute, 

 nerveless, 2 or 3 lines long; petals greenish-white, entire, exserted : 

 stamens included, the filaments opposite to the sepals with a pair of 

 large yellowish glands adnate to the base: stigmas subcapitate: capsule 

 ovate-globose, 1^ lines long. — Near the Mohave River (41 Palmer, 

 1876), and in the mountains bordering the Mohave Desert (S. B. & 

 W. F. Parish, May, 1882). Remarkable among the allied perennial 

 species for the large glands of the staminiferous disk. 



Lepigonum gracile. Annual, slender, glabrous, 2 to 4 inches 

 high: leaves very narrow, 3 to 12 lines long; stipules deltoid: pedicels 

 ascending, 2 to 4 lines long: sepals fleshy, short, obtuse, h to nearly 

 1 line long: petals none: capsule ovate, equalling or a little exceed- 

 ing the calyx : seeds triangular-pyriform, strongly rough-tuberculate, 

 not margined. — Common on sandy lands near Dallas, Texas (J. 

 Reverchon), and in dried ponds on mesa land near Wilmington and 

 Compton, Los Angeles County, California (Rev. J. C. Nevin). It is 

 nearly allied to the European L. segetale, and also to L. Mcxicaniim, 

 from which it differs especially in its smaller calyx and capsules, and 

 more angular and rougher seeds. 



Malvastrum Rugelii. Woody-stemmed, erect and branching 

 (2 or 3 feet high or more), rather sparingly pubescent with straight 

 appressed forked hairs : leaves ovate to oblong-ovate, abruptly nar- 

 rowed at base, acutish, acutely serrate, i to 1| inches long, exceeding 

 the petioles : flowers nearly sessile, solitary or few in the upper axils 



