447 
South Carolina to Florida, west to Arkansas and Texas. 
Original locality: Cooper River, St. John’s Parish, S. C. 
Resembles ZL. angulatus L. of Southern Europe, but that 
species has more nearly linear leaflets and smaller stipules. 
2. Latuyrus pratensis L. Sp. Pl. 733 (175 3). 
Massachusetts and New York, naturalized from Europe. 
Original locality: European. 
3. Laruyrus patustris L. Sp. Pl. 733 (185 3). 
Lathyrus Lanszwertii Kell. Proc. Cal. Acad. 2: 150, jig. 44 
(1863). 
Lathyrus occidentalis Nutt. = L. palustris var. 8, T. & G. FI. N. 
A. 1: 276 (1838). ' 
New York and New England westward through the Northern 
States and Canada to Alaska. 
_ Original locality: European. - 
A species of Northern Europe, Asia and North America; 
characterized from various allied species, especially ZL. myrtifolius 
_ Muhl., with which it has been confused by American authors, by 
(1) the prominently winged stem, the wings often as broad or 
broader than the stem; (2) the longer narrower more coriaceous 
dark green foliage; (3) the more lanceolate acutely semi-sagittate 
stipules; (4) the few flowered raceme.* 
4. Latayrus Watsont White. 
| Lathyrus venosus Muhl. vars. y and ¢ Torr. Pac. R. R. Rept. 4: 
76 (185 7). : 
Lathyrus venosus var. Californicus S. Wats. Proc. Am. Acad. 
11: 133,(1876), not L. Calfornicus Dougl. ! 
Lathyrus Californicus S. Wats. Proc. Am. Acad. 20: 363 (1885). 
Perennial, rather lax, velvety pubescent throughout ; stem very 
Stout, flexous, quadrangular, usually strongly winged, striate, 
ranching, 1-2 m. high; stipules semi-sagittate, dilated and often | 
Coarsely toothed at base, long acuminate, the upper mostly nar- 
;oWer, %4-1 as long as the leaflets; pedicels often channeled ; 
leaflets “8_r2 sub-alternate, ovate-oblong to linear-lanceolate, 1-5 
cm. long, obtuse to acuminate, rather thick, paler beneath, densely 
Soft pubescent on both surfaces, as is also the rachis; tendrils 
* Note distinction of characters of Z. palustris and L. myrtifolius by Alefeld; ee 
ts Botanische Zeitung 18: 161 (May 4, 1860). 5 pie ae 2 
