ADDITIONS AND CUUUKCTlONS TO VOL. I. 43^ 



4». C. bellidifolia, l>iiiTi. Alpine, dwarf and tnftod, 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. — ¥1 Dan. i, t. 20 ; Torr. & Gray, Fl. i. 84. 



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

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



rage 31. 6. ARABIS. 



_ 3". A. canescens, Nutt. Densely and finely stellate-pubescent, 2 to G 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 refiexed on short 

 pedicels. — A. pitherula, Nutt. ; Hook. Icon. t. 359. 



Var. (?) stylosa. Pubescence sometimes more villous-stcllate and wanting above : 

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



Lassen's Vaxk {Lrmv\on), mxkX the higher mountains of Eastern Nevada and Wyoming; the 

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



7. A. Holboellii, liomem., and 8. A. arcuata, Gray, are reported from tho 

 mountains of ISan Diego Gounty, D. Cleveland. 



Page 33. 7. STREPTANTHUS. 



2. S. tOrtUOSUS, Kell. Humboldt Gounty, V. Rattan. A form occurs with the 

 more strict and scarcely branched s*"m nearly covered with round-cordate clasping 

 leaves; Lemmon, J. Gray. 



Page 37. 10. THELYPODIUM. 



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

 ing, a foot or tvt'o high ; leaves oblongdanceolate, 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 tlie sepals: ])ods remote, 9 to 18 lines long, strongly 

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



On the Mohave Piver, dwpcr. Palmer. Partially described aft<'r T. jlavrsrms. 



4. T. brachycarpum, Torr. ]\readows, on Shasta iJiver, a])undant (Greene) ; 

 meadows, Owens VaUey (Dr. W. lUafthews), "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 oblanceo- 

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

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

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

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

 Proc. Araer. Acad. xiv. 290. 



Northern Arizona {A'rirbrrri/, Pulmrr) to Noitliern Nevada (Reagan's Valley, IJ'atson), and to 

 be e.xpected in the dry valleys of Northeastern ('alifoinia. 



Page 42. 17. NASTURTIUM. 



3". N. obtusum, Nutt. Annual, glabrous or nearly so : stems much branched, 

 diffusely si)reading or at first prostrate, a foot long or less : leaves pinnately divided 

 or parted, often lyrate, the oblong-roundish divisions obtusely toothed or repand : 

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

 oblong, H to 3 lines long, exceeding the iiedicols, straight or nearly so, abruptly 

 beaked by the short style. — Watson, l')ot. King Kxp. If). 



San Luis Obispo {Pahncy) ; on the .South Fork of Kern Piver (Rnlhrock-), ami eastward. 



