Hab. Shores of Lake Huron. Dr. Richardson. Drummond.—Mode of growth and general aspect of
R. pamassiasfolius ; the leaves being of nearly the same shape, undivided, on long petioles, so that they rise
much above the very short stem and flowers. The foliage, too, is very large in proportion to the size of the
plant; yet when we come to compare this species with the preceding one, we shall find that there are many
essential characters in common, and that it is probably only a variety of it. There are several specimens,
however, in the collection, and there is no variation among them.
10. B. cardiophyllus; pubescenti-hirsutus, foliis radicalibus rotundato-cordatis basi
sub->profimde emarginatis integris multifidisque, caulinis palmato-multifidis laciniis lineari-
bus inciso-crenatis, calyce patente corolla dimidio breviore, fructibus oblongis. (Tab. V. B.
Fig. 1, Pericarp :—magnified.)
Totaplmta magis minusve pubescenti-hirsuta. Caulis fere pedalis, erectus, strictus, subrobustus. Folia
radicalia 3 vel 4, longe petiolata, rotundato-cordata, basi subprofunde emarginata, integra, crenata vel multipartita,
laciniis linearibus subintegiis: caulina fere sessilia, multipartita. Flores majusculi, aurei. Calyx
membranaceus, subcoloratus, patens, corolla duplo brevior. Petala late ovalia, concava, obtusissima.
Fructus oblongus. Cariopsides numerosse, subrotundse, parvae, compressse, stylo uncinato longiusculo terminate.
Hab. From Canada to lat. 55°. In the .central prairie and limestone districts. Dr. Richardson. Drummond.
Alpine prairies in the Rooky Mountains. Drummond.—Of all this tribe, the present individual is the
tallest, stoutest, and has the largest flower. Its radical leaves axe more deeply emarginate at the base than
any other; yet I dare not positively pronounce it a good species. It may be considered as holding nearly the
same relationship with R. ovalis, as R. affmis Aoes with auricomus.
I have more than once, and that in unison with the ideas of my valued friend Mr. Amott, had the intention
of describing the whole of the last four species as different states of R. auricomus: but I felt that I
should make myself better understood, and create less confusion, by considering them species, or, if the
reader pleases, subspecies, than by enumerating them as varieties. When seen growing by Mr. Drummond,
in their respective localities, they appeared to him to be truly distinct; but, at the same time, there are
gradations which seem to unite the whole. They all agree in general habit, in the fasciculato-fibrous roots,
erect stems, deeply divided cauline leaves or bractese, in the somewhat coloured thin membranaceous erecto-
patent, at length reflexed sepals, and in the shape and structure of the carpels: they vary in the divided or
entire root-leaves, in the comparative lengths of the petals, and in the rounded or elongated heads of fruit.
To some of these species or varieties, the R. cassubicus approaches very nearly; but it has a more
straggling habit, and the root-leaves are more reniform, the heads of capsules rounded, or nearly so, and with
fewer carpels. Many of these are probably included in the numerous varieties of R. auricomus of Schlecht-
endal, who considers it certain that the R. cassubicus Should be united with that plant. One other plant of
this groupe yet remains to be described, namely the
11. B. abortivus ; foliis radicalibus cordato-subreniformibus late ovatisve obtusis crena-
tis integris vel trisectis, caulinis plerumque tripartitis segmentis lineari-lanceolatis integris
vel incisis, calyce colorato reflexo, fructus capitulo oblongo rotundato.
a. petalis linearibus calyce vix longioribus.—R. abortivus. Linn.—Pursh, FI. Am. v. 2.
p . 392. Bigel. FI. Bost. ed. 2. p. 225. Elliott, Carol, v. 2. p. 58. Be Cand. Prodr. v. 1.
p. 34. Schlecht. Animadv. Sect. 2. p. 10.—R. nitidus. Walt. FI. Carol, p . 159;^ (according
to De Cand., though Elliott refers that to B. scderatns ;) not of Muhl. and EUiott.
Pursh, FI. Am. v. 2. p. 392.
/&. petalis calyce pilosciusculo duplo longioribus.
Hab. a. and 0. Canada; and to lat. 57°: central limestone and prairie districts, and eastern declivities
of the Rooky Mountains. Dr. Richardson. Drummond. Mrs. Percival. Mr. Todd, Newfoundland Mr
Cormach. Allied to some states of R. affinis, and R. ovalis; or, as ScUeehtendal well observes “'inter
R. aur,commit and R. scderatum media, ah utroque autem toto raelo divcrsa.” It is distinguished from the
foregoing species by its more delicate and membranaceous feature, by the constantly redeaed calyx the
smaller and narrower-petal.1 of a pale yellow eolonr. Heads of pericarps globose, or but slightly elongated.
Carpels almost entirely glabrous, tipped with a very short style or macro—a very imperfect one indeed, as
described by De Candolle. From the United States, especially from the neighborhood ofBoston I p---- -
specimens Whose germens have a long and a stout recurved macro, yet in other respects precisely according
with our British North American R. abortivus. k x y %
12. R. sederatus; foliis glabris petiolatis tripartitis, radicalibus lobis trilobatis obtuse
submcisis, caulims lobis oblongo-linearibus integris, floralibus oblongis, calyce reflexo
glabro, carpelhs minimis in capitulum oblongum dispositis. Linn.—Engl. Bot. t. 681
Pursh, El. Am. v. 2. p. 392. Elliott, Carol, v. 2. p. 59. Bigel. FI. Bost. ed. 2. p. 225. De
» T V I S ? ' V' 1 1 34— Hecatonia palnstris. Lour. Coch.p. 371. De Cand. Spst. Veget.
Canada to lat. C7". Dr. Richardson. Douglas. Drummond
Almost entoely glabrous. Schlechtendal indeed mentions a pubescent variety. The species is constant in
the form of its radical leaves, cut and divided in a regular manner, in the very Icatystcm, the smTpaS
md m ■ H B P S B 5 J hcad °f numerous very small rounded carpels, which have scarcely any stole
and are furnished with.a distinct margin along the back. 3 3 ■
13. R.Purshu; fluitans, canle elongato, foliis submersis capillaceo-multifidis, emersis
. rcmfonmbns 3-5-partitis, lobis varie sectis, scpaUs reflexis corolla duplo brevioribas,
iructu subgloboso, stylo recto ensiformi. (Tab. VII. B.)
*• S °mDibus oapUWmultifidis, flore majore, canlc firtuloso.^B. multifldus
Pu™ \ m: y 2- P- 73fi- Bi9d - □ Bost- ed 2. p. 228. De Cand. Prodr. v. 1. p 34
—R. fluviatilis. Bigel. FI. Bost. ed. 1. p. 139. (nec alioruim.)
(Tlnftn. BbX ^ r PmaCe0"mUltifidiS’ natantib“S reni&rmibuS Pab“ ‘° -™ ltifid is.
f i f i r Z - T ’ vrr ^ ^m u ltip a r titis , superioribns reniformibus palmato-mnlhfidis.
(Tab. VII. B. Fig. 2 .)_B . Purshu, . — Rich. in FranM. 1st Joum. ed. 2. App. p, 23.
3. repens,-Mbs omnibus reuiformi-rotundatis palmato-tri-quinquefidis. (Tab! VII
W M i S K — B | c- K. Gmelini, De Cand, Prodr. v. 1. p. 35, (excl. syn.
m m f 1' d 'Dr f l Pr0dr■ 19 trindis, caunbus filiformibus declmatis. Gmel. FI. Spib-. v. 4. tR. a8n3u. nBcu. lus foliis dupUcaL
1 H | .CT ” “ throughout the eastern and prairie, districts, from Canada to near the Arctic Sea • never
i — 1 m l i * - — V - d in g over the snrihees of s p k a g n o im l 'g e n e r -
Shve 1 ^ 0 h i m,T j :7 W p00ls 0f water- in shady PlaMS- P- and y. Lakes and marnhes about
lake n , ’BC™b“ kn<i R°us° P°rt- Dr Richardson: and to the Rocky Mountains, Drummond. J Bear
Lake. Dr. Rmhardson. Bay of Bsehscholtz, on the western shore of extaeme Arctic America
This aquatic plant has a very similar habit with II. aguatilis, and, like it, varies exceedingly in the lemrth f
the stems and shape of its leaves, according to its situation In deep or i ’ T t S
a Z e i t tab ^ “ “ - ' f t 1 ^ “ “ of a P » « ^ Z r . mulMdus oi l 3
“ J ‘7 6Te;- 9 P1» 4 of Eorskal!,) Which is a more southern plant, 3 feet W
thicker in its iistuk.su stem than a goose^U, and clothed with none but long c a p ilk u Z mMtifid l e n Z