OF ARTS AND SCIENCES. 261 



to linear-oblong, obtuse, entire or rarely sparingly toothed, 2 to 4 lines 

 long, sometimes slightly ciliate at base, the cauline few (2 to 4), 

 oblong-ovate : flowers small, white, the sepals oblong, herbaceous : 

 pods linear-oblong, 2 or 3 lines long, obtusish, pubescent, ascending 

 on short pedicels ; stigma sessile or nearly so. — On Mt. Dana, at 

 12,000 feet altitude ( W. H. Brewer, 1863); White Mountains, Mono 

 County, at 13,000 feet (IF. H. ShocMey, July, 1886). 



Cheirantiius occidentalis. Annual, low (6 inches high or 

 less), erect, simple or branching from the base : leaves linear- or nar- 

 rowly oblanceolate : flowers lemon or orange-color, 6 lines long : pods 

 2 to 3i inches long by H lines broad, beaked by a style 2 lines long, 

 ascending on pedicels about 3 lines long : seeds narrowly winged. — 

 Erysimum asperum, var. (?) pumilum, Watson, Bot. King's Expl. 24. 

 In Washington Territory (Wallawalla, Lyall ; Klickitat County, 

 Suksdorf), Oregon (Wasco County, Suksdorf), and northern Nevada 

 (near Carson City, Watsoii). Resembling dwarf states of Erysimum 

 pumilum, to which it has been referred in the want of fruiting speci- 

 mens, which are first collected by Mr. W. C. Suksdorf. 



Caulanthus Lemmoni. A stout branching annual, 1 or 2 feet 

 high, glaucous and glabrous or sparingly hispid with spreading simple 

 or branched hairs : cauline leaves broadly auriculate-clasping, lanceo- 

 late, acuminate, entire, or the lower somewhat oblanceolate and 

 toothed : racemes open, elongated, the streptanthoid flowers (sepals 

 more or less brownish purple) spreading or reflexed on usually hispid 

 pedicels : petals undulate, 6 or 8 lines long, the blade not broader than 

 the claw, white veined with brown : pods subterete with nerved valves, 

 2-J- to 5 inches long by 1 J lines broad, ascending ; style very variable in 

 length ; stigmas divaricate. — Near Cholame, northeastern part of San 

 Luis Obispo County, Calif. (J. G. and »S. A. Lemmon, June, 1887). 



Silene Luisana. Perennial, glandular-pubescent throughout, a 

 foot high : leaves very narrowly linear, 2 inches long or less : pedun- 

 cles 1-2-flowered, equalling the floral leaves : calyx narrowly cylin- 

 drical, 6 or 7 lines long, the teeth oblong-ovate, membranously 

 margined and ciliate ; petals white (?), 9 lines long, the oblong blade 

 bifid to the middle, with or without small lateral teeth, the claw nar- 

 rowly auriculate, and the narrowly oblong appendages acute and more 

 or less lacerately toothed ; filaments naked : capsule subcylindric, upon 

 a stipe \\ lines long, the small flattened seeds tuberculate, scarcely 

 crested. — Nearest to S. verecunda. On rocks near San Luis Obispo 

 (J. G. and S. A. Lemmon, n. 4557, June, 1887) ; also near Tolon, in 

 Monterey County (T. S. Brandegee, 1886). 



