2G BOTA]!fY. 
entire, lanceolate; the cauline ones sagittate, clasping; llowers in crowded 
racemes ; petals obovate, the claw exceeding the sepals, nearly white ; raceme 
elongated in fruit ; siliques spreading, subterete, more or less torulose, acumi- 
nate with the rather long style ; seeds emarginate, cotyledons often nearly 
incumbent. — Rarely erect, loosely branched, the branches usually weak and 
tlexuose ; leaves somewhat glaucous, radical ones 3-4' long, on slender petioles ; 
sepals green or colored; petals pale-pink or white ; sihques 1-2' long. Growing 
under bushes in the alkaline vnlleys of Nevada, and in Salt Lake Valley, 
Utah. May-July. (108.) 
Thelypodium Nuttallii. {Btreytanthus sagittaius, Nutt.) Leaves en- 
tire, the radical ovate, petioled, the cauline ones lanceolate, sagittate, clasping ; 
flowers loosely racemed ; petals ovate-oblong, the claw exceeding the sepals, 
purple; siliques spreading, subterete, more or less torulose, acuminate with the 
rather long style ; seeds emarginate, cotyledons nearly accumbent. — Very 
near to the last and growing in similar localities, but usually stouter and 
more erect, 3-5° high; radical leaves often 6-8' long, and half as broad; 
petals and calyx bright purple, or rarely nearly white; siliques 1-2' long; 
cotyledons nearly accumbent, and the seeds, therefore, rather flatter than is 
usual in the last. Collected by Nuttall in Southern Idaho, and since by Ives 
in Arizona. (109.) 
ThelypodiDxM brachycarpum, Torr. . Proc. Amer. Acad. 6. 520. Stem 
virgate ; cauline leaves rather numerous, oblong-lanceolate, sagittate, entire, 
erect ; raceme elongated, very narrow, spiciform ; pedicels shorter than the 
calyx ; sepals linear ; petals very narrowly linear ; anthers mucronate ; siliques 
i-l'long, the valves carinately 1-nerved. — The radical leaves, often wanting, 
are runcinate-pinnatifid, or sometimes nearly entire ; the cauhne occasionally 
sparingly toothed, appressed to the stem or spreading ; the stem often tall 
and stout, (1-5°,) and with much the habit of T, integrifoUuin, with which 
it was found hi the Truckee Valley. Collected by the Wilkes Exploring 
Expedition in California and by Brewer at Mono Lake. (110.) 
Thelypodium laciniatum, Endl. (Pachypodimn, Nutt.) Glabrous; leaves 
oblong-lanceolote, all petioled, sinuate-dentate, or laciniately pinnatifid, or 
(•()ars(dy and unequally toothed; flowers on spreading pedicels; petals linear, 
\\ivvv times as long as the calyx; stipe very short; sihques subterete, acumi- 
nate. — Stem erect, 2-5" high, sim})le or branched: leaves very variable, on 
slender petioles ; racenn^s virtrate, elonjiated ; flowers nearly white ; siliques 
