Vhysiiriu. CKUCIKKILK. 47 



* * * Stouter and often tall, inosthj biennial or perennial : 2^cdiceh terete. 

 +■ Annual : petals small or usually none : stamens 2 : style none or very short. 



8. L. intermedium, <^Irny. Erect and braiicliing, witli tho habit of L. Virgini- 

 cum, ^ to U leet lii},'li, piiberulcnt or glabrous: lower loaves 1 to 2 inches long, 

 toothed or piiinatilid, the upper often entire or but sparingly toothed, oblanceolate 

 or linear : petals wanting in the western form : pods smooth or rarely puberulent, 

 rounded, 1 to 1 ^ lines })road, very shortly winged Avith somewliat divergent obtuse 

 teeth : pedicels spreading, 2 lines long. — PI. Wright, ii. If). 



The more common .species east of the Sierra Nevada, widely distributed through the interior, 

 ranging from the Columhia Valley to Hudson's Bay and soutliward to Texas, New Mexico, and 

 S. California. The typical form of Texas and New Mexico has rather small petals. 



+- +- Biennial or jyerennial : petals conspicuous : stamens G : style exceeding the wings. 



9. L. montanum, Nutt. Biennial, puberulent or pubescent or nearly glabrous, 

 1^ feet high or less: loaves ])iniiatitid, the oblong to lanceolate segments usually 

 inoro or le.ss divided, especially on the upper side ; uppermost loaves with few seg- 

 mcMita or linear and ontiro : jiolals twice as long as tho 8(;pals : pods a lino broad, 

 ovate, narrowly winged above with short acutish toi^th. — Torr. k Gmy, Fl. i. IIG; 

 Watson, Rot. King Exp. 29. 



In dry valleys and on hillsidrs from the "Snake Couiitiy " (Tolvtir) through Nevada to 

 Sonora, New Moxicn, and Colorado, Anderson's specimens from near Carson City are perennial 

 and npi>ionfh tlio next. 



10. L. alyssoides, ^^ray. Pul)ernlent or often glabrous and glaucous, from a 

 perennial root, diflusoly l)ranchcd, | to 1 foot higli : leaves linear, 2 to 3 inches 

 long, the lowest sparingly lobed with linear segments : flowers large : pods from 

 narrowly oblong or linear becoming ovate, 1 to H lines broad, shortly winged 

 above with acutish teeth. — V\. Fendl. 10. 



In alkaline soils, from N. Nevada and Colorado to Northern Mexico. 



11. L. Fremontii, Watson. Perennial with a somewhat woody base, diffusely 

 branched, glabrous and glaucous, 1 to 1 ^ feet high : loaves linear, 1 to 3 inches 

 long, entire or sparingly lobed : racemes rather short and few-flowered, terminal and 

 lateral : ])od3 rounded, abruptly cuneate at base, 2 to 4 linos broad, slightly emar- 

 ginate with short very obtuse teeth. — Hot. King l']\\>. 30, t. 1. 



In dry desprts; Mohave Hivor (/'Vrnio)i/) ; Northwcstnrn Nevada ( /FaAio)!, />j/n«07i) ; S. Utah 

 {Parry) ; S. Colorado, llnthrock. 



26. PHYSARIA, Nutt. 



Pod didymous, with a short narrow partition ; cells inflated, nearly globular, 

 membranaceous, nerveless, several-seeded. Seeds not winged ; cotyledons accum- 

 bent. — Low and stellately cancscent perennials ; leaves mostly entire ; the flowei-s 

 yellow. 



Three species are known, cnnfinod to the interior of the continent, with tlic habit of f'esicaria, 

 to which they ate referred by Benthnm and Hooker. 



1. P. didymocarpa, Hray. Decumbent, difTiisoly branched: radical leaves' 

 ])roa(lly spatulato, occiisionally lyrate ; the cauline oblanceolate, mostly entire: flowers 

 showy ; racemes short : pods 2 to fi lines in diametor, deeply emarginate above and 

 below, tho cells \isually appniximiito, sometimes diverg(>nt ; the ]>arlition only 1 to 

 1^ lines long. — Gen. 111. i. 1G2 ; AVat.son, Hot. King lv\p. 20. Vesicaria didymo- 

 carpa, Hook. Fl. i. 49, t. 16. 



On the eastern side of the Sierra Nevada in the mountains to Colorado and northwaixl to Brit- 

 ish America. 



