superioribus valde abbreviates, (corollis purpureis,) leguminibus—?.—Pursh, FI. Am.
v. 2 .p . 471. .
TTaw. Banks of the Saskatchawan; abundant. Dr. Richardson; Drummond. Bushy places in North-
West America. Douglas.—I doubted whether I might not refer this plant to the L. venosus of Muhl. in
Willd., since it is described as being similar to L. pisiformis, “ except in the stipules being much smaller:”
but then their shape is different, the leaflets are described as much broader, and the whole plant as
glabrous. Again, the L. polymorphus of Nuttall accords, in some respects; but it is said to be glabrous.
In regard to its being the L. decaphylkts of Pursh, I can only say that the short description of that author,
unsatisfactory as it is, agrees with it, except that the number of flowers upon a peduncle is greatly more
than three or four. Still I have been very unwilling to swell unnecessarily the number of species of a genus
already too much encumbered with questionable ones. The present individual is large and straggling; many
of its leaflets two and a half to three inches long. Stems square, striated, and, as well as the whole plant,
sensibly downy. Calyx thickly downy. The stipules, however, afford the most essential character by which
this may at once be distinguished from the preceding. They are small, lanceolate, sagittate, the lobe so long and
so deflexed that in general the stipule appears to be lanceolate, acuminate at both extremities, and attached
by the margin at the middle. In the present, and all the foregoing broad-leaved species, the style is nearly
linear, slightly dilated upwards, the lower margin a little recurved, just where it unites with the germen,
the rest plane, compressed, with the down occupying a considerable length of the upper and plane surface.
4. L. stipulaeeus ; glaberrimus, caule acute tetragono (vix alato), foliolis 3-jugis ellipticis
mucronatis, stipulis ovato-semisagittatis acuminatis magnis, pedunculis 4—6-floris folio
longioribus, leguminibus (immaturis) linearibus acuminatis compressis glabris.—“ Le Conte
in Cat. PL New York,p. 92.” De Cand. Prodr. v. 2. p. 371.
Hab. Upper Canada. Mr. Goldie. Lake Huron. Dr. Todd.—In foliage, this is intermediate between
the preceding broad-leaved species, and the following narrow-leaved one; in the stipules, between L.
ochroleucus, and L. decaphyUus; and it is possible it may be included in the L. polymorphus ot Nuttall.
The stipules are not half the size of those of L. ochroleucus, while they are thrice the size of, and greatly
broader than, those of the L. decaphyUus. I have received the same plant, without a name, both from
Philadelphia and New York; but I have no specimen from the British Possessions, save from the
localities above-mentioned. The plant well accords with the L. stipulaeeus of Le Conte, only that its stem
is rather acutely 4-angular, than winged, as it is in the following species.—I am still unacquainted with any
North-American Laihyri which will entirely agree with the L. venosus or L. myrtifolius, both of Muhl., in
Willd. Sp. PI., and I introduce them here upon the authority of Mr. Douglas. All the North American
Laihyri have their leaves very, and almost equally, veiny.
5. L . venosus; caulibus tetragonis non alatis, foliis multijugis, foliolis ovatis obtusis
suboppositis mucronatis glabris, cirrhis trifidis, stipulis semisagittato-ovatis, pedunculis
multifloris folio brevioribus* leguminibus—? DC.—Muhl. in WUld. Sp. PI. v. 3. p. 1092.
Pursh, FI. Am. y. 2. p. 471. Nutt. Gen. v. 2. p. 96. De Cand. Prodr. v. 2. p. 371.
Hab. Common throughout the great chain of lakes in Upper Canada: plentiful on the Red River and
the River Winipeg. Douglas.
6. L . myrtifolius i caule debili flexuoso tetragono non alato, foliis 2-3-jugis, foliolis
oblongo-lanceolatis obtusiusculis mucronatis rigidiusculis glabris venoso-striatis, cirrhis
trifidis, stipulis semisagittato-lanceolatis acuminatis margine scabris, pedunculis 3-4-floris
folio longioribus, leguminibus^—? DC.—Muhl. in Willd. Sp. PI. v. 3. p. 1091. Pursh, FI.
Am. v. 2. p. 471. Nutt. Gen. v. 2. p. 96. De Cand. Prodr. v. 2. p. 371.
Hab. Near Fort-Erie, and on the banks of the Niagara to Queenstown. Douglas.
7. L. palustris; plerumque glaberrimus, caulibus erectiusculis alatis, foliolis 3-jugis
oblongo-lanceolatis obtusiusculis mucronatis rigidiusculis, stipulis parvis lanceolatis semi-
sagittatis loboque acuminato deflexo acuminatis, pedunculis 3-5-floris, leguminibus lato-
linearibus compressis acuminatis pubescentibus.—Linn. Sp. PI. p . 1034. Engl. Bot. t. 169.
Mick. Am. v. 2. p. 66. Pursh, FI. Am. v. 2. p . 471. Bigel. Fl. Bost. ed. 2. p . 269. De
Cand. Prodr. v. 2. p. 371.—ß. major.
Hab. Abundant throughout Canada, and as far north as the Saskatchawan. Lady Dalhmsie, Mr. Goldie,
Mr. Cleghorn, Mr. Todd.—ß. Straits of De Fuca, North-West America, in lat. 48°. Dr. Scouler.__This
species entirely agrees with our Europæan L. palustris. The stipules resemble those of L. decaphyUus.
T r i b . V. P h a s e o l e æ . Br. DC.
22. AMPHICARPÆA. Ell. DC.
Cal. campanulatus 4-dentatus basi ebracteolatus, dentibus æqualibus subulatis. Corolla
papilionacea, petalis oblongis, vexillo lato incumbente subsessili. Stam. diadelpha. Stylus
filiformis. Stigma capitatum. Ovarii stipes vaginula cylindrica vestitus. Legumen com-
pressum stipitatum 1-4-spermum.— Caules herbacei volubiles. Folia pinnata 1-juga cum
impari, foliolis ovatis glabris. Racemi axillares. Bracteæ bifloroe. Flores soepe apetali,
caulini steriles aut legumina radicalibus dissimilia gereutes, radicales soepius fertiles. DC.
1. A. monoica; racemis pendulis corollatis.— EU. Journ. Nat. Sc. Philad. v. 1. p . 373,
Carol, v. 2. p . 233. Nutt. Gen. v. 2. p . 113. De Cand. Prodr. v. 2. p . 383.—Glycine
monoica. Linn. Sp. PL p. 1023. Mich. Am. v. 2. p. 64. Pursh, Fl. Am. v. 2. p. 485.
Bigel. Fl. Bost. ed. 2. p. 276.
Hab. Upper Canada. Mrs. Percival. La Grande Chaudière. Pursh, MSS.
23. APIOS. Boerh.
Cal. campanulatus dentibus 4 obsoletis, 1 acuta sub carina elongato. Cor. papilionacea,
canna falcata lineari vexilli apicem reflectente. Stam. diadelpba. Omni stipes tabulé
vaginatas. Stigma emarginatum. ieÿMOTpolyspermumet (ex AreA) biloeidare, semini-
bus dissepimento interceptis.—Herba scandéns glabra. Radix tuberosa edulis. Folia im-
pari-pinnata. Racemi axillares. Flores fusco-purpurei odori. Bracteolæ calyci adpressæ
caducissimoe. DC.
I. A. tuberosa.—Moench, Ludg. 2. p . 53. Elliott, Carol, v. 2. p. 232. Pursh, Fl. Am. v.
2. p. 473. De Cand. Prodr. v. 2. p. 390.—Glycine Apios. Linn_Mich. Am. v. 2. p. 83.
Bigel. Fl. Bost. ed. 2. p. 277. Sims in Bot. Mag. t. 1198.
Hab. Canada, about Quebec. Lady Dalbousie, Mrs. Perdrai.
M. PHASEOLUS. Linn.
Cal. campanulatus bilabiatus, labio superiore bidentato, infer, tripartita. Cor. papilionacea,
carina cum stamimbus diadelphis styloque spiraliter conforta vel rarius incurva.
Omm stipes taro vagimilatas. Legumen compressum aut cylindricum bivalve intus isthmis
cellulosis subdistinctum polymoiphum. Semina hilo ovali-oblongo__Herbæ aut suffrutices
soepius volubiles. Folia pinnatodrifoliolata, foliolis basi stipeUatis. Racemi axillares.
Pedicelli soepius gemini, semper 1 -flori. DC.
von. i. y. x