OF ARTS AND SCIENCES. 277 



good allied species, but it may be only a more caulescent form of C 

 Cotyledon, a species very well named from the character of its foliage. 



C. Leana, Porter, narrow-leaved and paniculately many-flowered, 

 is now known from British Columbia down to the vicinity of Shasta 

 in California ; unless two nearly related species are concerned.* 



The fact that all these species have basilar circumscissile dehiscence 

 of the capsule was made known to me by Professor Henderson and 

 the Brothers Howell. 



2. Seeds conspicuously strophiolate ; the testa granulate. 



C. TwEEDYi, Gray. Habit of G. Cotyledon; caudex and root very 

 thick : leaves obovate, fleshy, 2 to 4 inches long, an inch or two wide, 

 rather shorter than the 1-3-flowered fruiting scapes : sepals and bracts 

 entire and glandless, the former orbicular : petals an inch long : sta- 

 mens 10 or 11 : capsule 20-30-seeded, 3-valved from the base upward : 

 seeds with a large and loose orbicular and squamiform arillus rather 

 than strophiole ! — Wenaichee Mountains, Washington Territory ; al- 

 pine, Tweedy and Brandegee. 



Of the EuCALANDRiNiA section we have the following species ; all 

 annuals. 



C. CAULESCENS, HBK., the undoubted type of the genus, S. Ameri- 

 can, Mexican, and extending into Arizona and to the Columbia River. 

 C. micrantha, Schlecht., is evidently a small-petalled form of it. The 

 seeds of this species are as obviously carunculate as are most species 

 of Tcdlnum. Var. Menziesii, the Talinum ( Calandrinia) Menziesii, 

 Hook. Fl. i. 223, t. 70, very common on our western coast, I take to 

 be only a variety of C. caulescens, with louger-pedicelled and larger 

 4-11-androus flowers; but the extreme forms seem to be different 

 enough. Some of them approach the Chilian G. pilosiuscula. 



C. Breweri, Watson, Bot. Calif, i. 74, differing mainly in the larger 

 flowers on longer and soon refracted pedicels, and much exserted nar- 

 row capsule, is confirmed by a specimen gathered by Mr. Orcutt in 

 Lower California. 



C. MARiTiMA, Nutt., a depressed species, with most of the leaves 

 rosulate at the root, and an obtuse ovoid capsule, has conspicuously 

 strophiolate seeds. 



* The plant of tlie mountains of Oregon and Washington Terr. (coll. by Lyall 

 as far north as lat. 49) is distinguislied by Mr. Thomas Howell as C. Columbiana, 

 because of its broader and less terete leaves, not glaucous, and flowering stems 

 less scapiform, these after comparatively transient flowering disarticulating from 

 the stock. 



