Latiiyrus. LEGUMINOS/E. 275 



Shady phcps, and alona streams, Canada to the Western part of Geortria! 

 Western Louisiana, Dr. Leavenworlh ! 0. Georgia, JJr. IJoyhiu! y. Sas- 

 katchawan, {/hchardson, Dnunmmid) to the shore of Lake Superior, Dr. 

 Houirhton! and Illinois, ex Nnttall : also N. W. Coast and California, ex 

 Honker, f,. Bushy woods of the Oregon, NuUall! June-July.— Stem ahout 

 3-4-angled and striate, 2-3 feet high. Petioles channelled above. Lealhts 

 in o. & Y- about li-2 inches long; in fi. larger, somewliat conspicuously reti- 

 culate-veined above when old. Flowers smaller than in the two preceding 

 species, racemose, crowded. Lateral segments of the calyx triangular-lan- 

 ceolate, a little shorter than the somewhat narrower lower segrnent; the 

 upper ones broadly triangular and extremely short.— A widely diffused spe- 

 cies, if we are correct in joining with it the L. decaphyllus of Hooker, &t , 

 readily distinguished by its very small stipules, These are however a little 

 variable in the ordinary form, even in the same specimen ; the upper ones 

 being often larger and broader. 



■j^b. L. ochroleucus (Hook.) : glabrous, pale and a little glaucous ; stem slen- 

 der; leaflets about 3 pairs, broadly oval or ovate; stipules semicordate; 

 smaller than the leaflets, entire or obtusely toothed below ; peduncles 7-10- 

 flovvered, shorter than the leaves; calyx somewhat truncate above ; the up- 

 per segments broadly triangular, scarcely half the length of the oblong lateral 

 ones; the lower lanceolate and a little longest ; corolla yellowish-white ; le- 

 gumes linear-oblong, compressed, glabrous.— //oo/r..' fi. Bor.-Am. L p. 159 ; 

 (h'ay ! in ann. lye. New-York, 1. p. 225. L. glaucifolius, Beck, bot. p. 90. 

 L. piriformis, Richards. .' in app. Frankl. journ. ed. 2. p. 28. 



Shady hill-sides and banks of streams &c., from the Arctic circle. Dr. 

 Richax'dson! (Bear Lake) to the Western and Northern part of New- 

 York! and New Jersey! June-July. — A smaller and more delicate plant 

 than tiie preceding, straggling or somewhat climbing. Leaflets 1-li inch 

 in length, thin and membranaceous. Stipules either rounded at the base, or 

 with a^n acute angle, somewhat variable in size ; the lower ones considerably 

 smaller than the leaflets ; the uppermost often nearly their size, particularly 

 in the subarctic forms. In the latter, also, the peduncles are nearly as long 

 as the leaves. Segments of the calyx minutely hairy on the margin. Flow- 

 ers about as large as in L. venosus. 



-7^ 6. L. myrtifolius (Muhl.) : dabrous ; stem slender, acutely quadrangular 

 and often slightly winged ; leaflets 2-3 pairs, oval-elliptical or oblong, obtuse 

 at each end ; stipules ovate-semisagittate, smaller than the leaflets, nearly 

 entire ; peduncles 3-6-flowered, longer than the leaves ; upper segments of 

 the calyx broad and shortest, the others triangular-lanceolate; corolla pale 

 purple '(the wings and keel whitish); legumes (immature) oblong-Hnear, 

 compressed, glabrous.— M'i/i/. in Willd. sp. 3. p. 1091 ; Pursh, f. 2. p. 471 ; 

 DC. prodr. 2. p. 371 ; Hook. I. c. L. stipulaceus, Le Conte ! in cat. pi. 

 New- York, p. 92; DC. I. c; Hook. I. c. 



Banks of rivers, &c., Canada ! Vermont ! to New- York ! and Pennsylva- 

 nia. July -Aug.— More or less climbing. Stem 2-4 feet long. Flowers the 

 size of the preceding.— We have drawn up the character from the ordinary 

 and well-marked forms of this species; but we have varieties which so nearly 

 approach to L. palustris that we arc unable to point out any certain and con- 

 stant mark of distinction. The leaflets are ordinarily an mch and a half in 

 length and about half an inch wide, veiny, and rather rigid. The stipules 

 are'extremely variable in size, being sometimes half the size of the leaflets, 

 but often (especially the lowermost) very smaU : their base is sometimes 

 rounded and sometimes acute. We have not seen the ripe fruit. 



S-1.L. palustri-f (h'mn.): mostlv glabrous ; stems somcAvhat erect, winged; 

 leaflets 3 pairs, oblong-lanceolate,' obtusish, mucronate. rather rigid ; stipules 

 very small, lanceolate, semisagittate, acuminate, the deflexed lobe also acurai- 



