ADDITIONS AND CORRECTIONS TO VOL. L 43 j 



4 a . C. bellidifolia, Linn. Alpine, dwarf and tufted, 2 or 3 inches high, gla- 

 brous : leaves mostly radical, ovate, entire, 2 to 5 lines long, on slender petioles : 

 pods (1 to 5) erect, narrowly linear, 8 to 12 lines long, beaked by the very short 

 stout style. Fl. Dan. i, t. 20 ; Torr. & Gray, Fl. i. 84. 



On Lassen's Peak, at 10-11,000 feet altitude, Mrs. R. M. Austin. Also on the higher moun- 

 tains of New England, in Arctic America, and northern Europe. 



Page 31. 6. ARABIS. 



3*. A. canescens, Nutt. Densely and finely stellate-pubescent, 2 to 6 inches 

 high, tufted : leaves narrowly linear-oblanceolate to broadly spatulate, or the cauline 

 oblong and clasping : pods glabrous, 1 to 1 % inches long and a line wide, acute and 

 tipped by a thick nearly sessile stigma, more or less spreading or reflexed on short 

 pedicels. A. pubenda, Nutt. ; Hook. Icon. t. 359. 



Var. (1) stylosa. Pubescence sometimes more villous-stellate and wanting above : 

 pods narrower, ascending, attenuate into a short rather slender style. 



Lassen's Peak (Lemmon), and the higher mountains of Eastern Nevada and "Wyoming ; the 

 variety in Plumas County (Mrs. Austin), and East Humboldt Mountains, Nevada, Watson, n. 70. 



7. A. Holbcellii, Hornem., and 8. A. arcuata, Gray, are reported from the 

 mountains of San Diego County, D. Cleveland. 



Page 33. 7. STBEPTANTHUS. 



2. S. tortuosus, Kell. Humboldt County, V. Rattan. A form occurs with the 

 more strict and scarcely branched s fo rn nearly covered with round-cordate clasping 

 leaves ; Lemmon, A. Gray. 



Page 37. 10. THELYPODIUM. 



3". T. Cooperi. Annual, glabrous and glaucous : stem erect, flexuous, branch- 

 ing, a foot or two high : leaves oblong-lanceolate, auricled and clasping, entire, rather 

 thick, the lower 2 inches long : flowers small (2 or 3 lines), on very short pedicels, 

 the petals scarcely exceeding the sepals : pods remote, 9 to 18 lines long, strongly 

 reflexed, stout, subterete, without stipe, beaked by the short style. 



On the Mohave River, Cooper, Palmer. Partially described after T. fiavescens. 



4. T. brachycarpum, Torr. Meadows, on Shasta Eiver, abundant (Greene] ; 

 meadows, Owens Valley (Dr. W. Matthews), "with the odor and taste of cabbage." 



4". T. ambiguum, Watson. Biennial, stout, erect, 3 to 5 feet high, glabrous 

 and glaucous, branching : leaves sessile, broadly auricled at base, the lower oblauceo- 

 late and coarsely sinuate-toothed or -lobed, 6 to 8 inches long, the cauline entire, 

 ovate- to oblong-lanceolate or lanceolate : raceme loose : petals reddish purple, 5 or 6 

 lines long, exceeding the spreading pedicels ; sepals short : stamens included : pods 

 3 inches long, very narrow, terete, recurved-spreading ; stipe nearly 2 lines long. 

 Proc. Amer. Acad. xiv. 290. 



Northern Arizona (Newbcrry, Pi timer) to Northern Nevada (Reagan's Valley, Watson), and to 

 be expected in the dry valleys of Northeastern California. 



Page 42. 17. NASTURTIUM. 



3 a . N. obttisum, Nutt. Annual, glabrous or nearly so : stems much branched, 

 diffusely spreading or at first prostrate, a foot long or less : leaves pinnately divided 

 or pai'ted, often lyrate, the oblong-roundish divisions obtusely toothed or repand : 

 flowers minute, short-pedicellcd : fruiting racemes elongated : pods ovate to linear- 

 oblong, 1| to 3 lines long, exceeding the pedicels, straight or nearly so, abruptly 

 beaked by the short style. Watson, Bot. King Exp. 15. 



San Luis Obispo (Palmer) ; on the South Fork of Kern River (Rolhrock), and eastward. 



