west to the Pacific ! Y. Pennsylvania to Kentucky !—May-July.—Stems at
length 1-4 feet long, commonly prostrate, and often rooting; the, earliest
flowering ones erect; usually hairy below, but often nearly smooth. Leaves
with the petioles more or less pilose. Peduncles 1-3 inches long. Flowers
middle sized (m specimens from Oregon smaller). Carpels in a globose head,
margined, sub orbicular, pointed with a short beak, which is nearly straight
or somewhat incurved. A variable plant; the stem being procumbent or
erect; the flowers sometimes much smaller, sometimes larger than in R.
acns, and the leaves presenting much diversity of form and lobino- — Pursh’s
specimen of this plant in Lambert’s herbarium is labelled in the hand-writing
of De Candolle.
29. R. hispidus (Michx.) : stem erect, branching and, with the petioles,
very pilose with stiff spreading hairs ; leaves trifoliolate or 3-parted; segments
oval, acute, lacimate ; pedicels with the pubescence appressed; calyx
appressed ; carpels smooth, pointed with a very short style.—DC. prodr. 1.
P' 33 > Michx.! f t 1. p. 321; Ell. sk. 2. p. 62. R. Belvisii, DC. 1. c. R.
Pennsylvanicus, Pursh ! ft. 2. p. 393.
Shady rich soils, often in very wet places, New Jersey ! to S Carolina '
and west to Oregon. May-July.—Stem 14-2 feet high, widely branching,
rather naked above. Leave’s very hairy, often divided nearly to the base
into many acute segments. Flowers as large as in R. acris.
30. R . Occident alls (Nutt.! mss.): “ hirsute with shining spreading hairs;
leaves trifid or 3-parted; segments cuneate and trifid, or incisely toothed the
lateral ones often subdivided; the uppermost leaves trifid, with linear acute
segments; stem divaricate, many-flowered; sepals reflexed, half as long as
tfle elliptical-oblong petals ; carpels smooth, much eompressed, with the revolute
style nearly their own length.”—R. recurvatus, Bong. < veg Sitcha
%n acad. St. Petersb. (6 ser.) 2. p. 123. (excl. syn.) ; Hook ' A
Bor.-Am. 1. p. 20. (in part.) J '
Plains of the Oregon River, near woods, Nutiall ! Dr. Scouler ! : Sitcha
Bongard! Root composed of fasciculate fibres. Stem slender, about a
toot high, somewhat branching, rather naked, densely clothed with shining-
brown hairs. Leaves scarcely more than an inch in length and breadth
Flowers when expanded 8-10 lines in diameter. Carpels slightly hairy margined
; the beak, when mature, so much recurved as to be revolute.—Nearly
related to R. lanuginosus of Europe, but differs in its slender naked stems
smaller leaves and flowers, narrow petals, &c.—We refer to this species r ’
recurvatus of Hooker, in part, because we have specimens under that name
trom Dr. Scouler, collected in Oregon. 32
31. R. Pennsylvanicus (Linn.): stem and petioles pilose-hispid with
spreading, hairs; leaves ternate, villous, with the hairs appressed; lower ones
on long petioles, the leaflets petiolulate; lobes lanceolate, incised; calyx re-
flexed, longer than the small petals; heads oblong or somewhat cylindrical •
carpels pomted with a .very short straight style.—DC. prodr 1 p 40 • E ll
f - h j - 63 -,Hook. f t Bor.-Am 1. p. 19. R. Canadensis,'/«™. ic.rar.
1 .1. 165. R. hispidus, P u r sh ! f t 2. p. 395. •> i
Wet places, Maine ! Michigan! New-York! to Georgia. British America
west to the Pacific June-Aug.—Whole plant hispidly pilose. Stem stout
and erect, 1-2 feet high, branching. Flowers very small
32. R. recurvatus (Poir.): erect; stem and petioles clothed with spreading
somewhat stiff hairs; leaves 3-parted, villous with appressed hairs or
nearly glabrous; segments broadly oval incisely toothed, thé lateral ones
2-lobed; calyx reflexed; petals narrowly oblong, shorter than the sepals
(sometimes abortive); heads ovate-globose; carpels with a short hooked style
-P a i r . diet. 6. p 123-, Pursh, f t 2 . p . 394; DC.p ro d r.l. p. 3 9 ; Deless.
ic. 1. t. 41; Ell. sk. 2. p. 63; Hook.! f t Bor-Am. 1. p. 20. (in part.)
0. Nelsonii (D C .): lobes of the leaves appoximate; pedicels approximate;
pubescence of the pedicels appressed. Hook. 1. c.
v. stem and leaves nearly glabrous. Hook.l. c. ,.
c5. stem and petioles retrorsely and hispidly pilose with reddish hairs ; pedicels
very short; petals often* abortive.
Shady rich soils, Labrador to Georgia! $. Oregon River, Dr. Scouler !
0. Unalaschka. y. Oregon and Canada. May-June.—About a foot high.
Leaves 2-3 inches in diameter, phe outline pentangular, all of them petiolate;
lobes dilated, coarsely toothed and incised. Flowers few, very small, on
short peduncles. Sepals oblong. Petals always shorter than the sepals, and
often scarcely half their length, pale yellow. Scale very conspicuous, cuneate,
bidentate at the summit. Carpels much compressed; the beak very slender,
33. R. Carolinianus (D C .): stem erect,- with a few slender branches,
hairy, the hairs on the lower part somewhat spreading, above appressed;
radical leaves cordate, 3-lobed or 3-parted; lobes ovate, subincised or cre-
nately toothed; cauline ones 3-parted, with the lobes linear-lanceolate and
nearly entire; sepals shorter than the oblong-obovate petals ; carpels few, conspicuously
margined, with the beak .broad and nearly straight. D C. syst.
1. p. 292. R. palmatus, Ell. sk. 2. p. 61. R. lanuginosus, Pursh, f t 2. p.
.294? . •
Pine-barren swamps, South Carolina, Elliott. West Florida, Dr. Chapman!
April-May.—Stem 12-18 inches high, slender, the upper part producing
several long 1-flowered branches. Leaves scarcely more than an
inch in length and breath; lobes rhombic-ovate, obtusely toothed. Flowers
about half an inch in diameter. Carpels 5-8, large, the margin almost
winged.--—A very distinct species, allied to R. occidentalis, Nutt.; but easily
distinguished by the short nearly straight beaks of the carpels.
34. R. tomentosus (Poir.): stem ascending, very villous with spreading
hairs, 1-2-flowered; leaves.tomentose, petiolate, 3-cleft; the upper ones sessile
ovate, undivided ; calyx very villous, somewhat reflexed. D C. Poir.
diet. 6. p. 127 ; DC. syst. 1. p. 292; Ell. sk. 2. p. 264; Pursh, f t 2. p. 394.
In South Carolina, Rose—Root fibrous-fasciculate. Stem short, ascending
at the summit, densely clothed with soft spreading hairs. Leaves
3-cleft; segments 3-lobed, ovate, dentate, with the pubescence appressed.
Petals obovate, a little longer than the calyx. DC.—De Candolle remarks
of this obscure species that it resembles R. pubescens and R. Marilandicus.
He refers to it R. tomentosus of Pursh, whose specimen in Lambert’s herbarium
is too imperfect for comparison. He also refers R. lanuginosus of
Pursh both to R. tomentosus and R. Carolinianus, noting it,-in the.latter instance,
with the mark (!) ; but we did not observe any Purshian specimens
of that species in Lambert’s herbarium. Is R. tomentosus, Poir. a variety
of R.repens ?
35. R. tenellus (Nutt.! mss.): “ leaves.somewhat bairy on the upper side,
the radical ones on long petioles, cordate, 3-5-cleft; the divisions 2-3-cleft,
acute; those of the stem 3-parted or entire; stem slender and somewhat
spreading, smooth; flowers minute; carpels much compressed, smooth, with
a minute curved style.’ , ■ ■'
“ Shady woods of the Oregon and Wahlamet Rivers,” Nuttall /—Stem 14
-2 feet high, nearly naked, almost filiform. Leaves an inch lopg.—Flowers
as large as m R. sceleratus. Sepals hairy. Petals obovate, a little larger
than the sepals. Peduncles much elongated in fruit. Carpels 6- 8, suborbicu-
lar ; the style slender and- vdry short.
36. R. fascicularis (Muhl): plant clothed with an appressed silky pubescence;
stem short, erect or spreading; leaves pinnately divided; segments.