a 
CaLTua. 1. RANUNCULACE. 143 
peduncles. The lobes of the root leaves are also rounded rather than acute at 
apex. May, Jn. § 
10. R. Fascrcutaéris. Muhl. Early Crowfoot. 
St. erect, branched; Ivs. pubescent, ternate, the middle segments deeply 3- 
cleft, lateral ones remotely 3-lobed; cad. villous, spreading, shorter than the 
petals.—Rocky woods and hills, Penn. to Wiscon. N. to Can. Root a fascicle 
of fleshy fibres. Radical leaves on petioles 3—8’ long, so divided as to appear 
almost pinnate; upper leaves 3-parted, nearly sessile. Flowers large. Petals 
yellow, cuneate-obovate, with a scale at base as broad as the transparent claw. 
Apr. May. 
11. R. Pennsytvanicus. (R. hispidus. Ph.) Bristly Crowfoot. 
St. erect, and with the petioles covered with stiff, spreading hairs ; Jws. vil- 
lous, ternate, /fts. subpetiolate, deeply 3-lobed, incisely serrate; cal. reflexed, 
rather longer than the roundish petals; carpels tipped with a short, straight 
style—A very hairy species, in wet grounds, Can. and U. 8. Stem 1}—3i 
high. Leaves 2—3’ diam.; leafiets strongly veined and with spreading seg- 
ments. Flowers numerous,small, bright yellow. Fruit in dense oblong orcy- 
lindrical heads. Jn.—Aug. 
12. R. repens. (R. intermedius. Eaton. R. Clintonii. Beck.) 
St. branching from the base, prostrate, radicating at the joints; Jvs. trifo- 
liate, /fts. petiolate, cuneiform, 3-lobed, cut-dentate ; ped. furrowed; cal. spreading ; 
carpels with a broad, not recurved point.—In moist or shady places, Can. and 
U.S. Stems 1—3 or 4f long, generally nairy at base, the early flowering 
branches erect. Petioles hairy, long. Leaves hairy on the veins, dark green. 
Flowers middle size, bright yellow. Petals often emarginate. May—Jl. 
B. linearilobus. DC. St. very long, floriferous; lobes of lus. very narrow. 
y- Marilandicus. T. & G. St. and petioles densely hirsute with soft hairs ; 
ifts. distinctly petiolulate. 
13. R. Pursun. Richardson. Floating Crowfoot. 
Floating; st. long; submerged ivs. cleft into numerous capillary segments, 
emersed ones reniform, 3—5-parted, the lobes variously divided; sep. reflexed, 
half as long asthe petals; carpels smooth, with a short, straight, ensiform style; 
Ads. globose.—Ponds, sluggish streams, and muddy places, Can., U.S. Stem 
1—2f or more in length, fistulous. Leaves pentangular in outline, 3—1}’ 
diam., those below most finely divided; petioles 4—2’ in length. Flowers 
bright yellow, emerging on forked, striate peduncles. May, Jn. 
&. (RK. fluviatilis. Bw. R. lacustris. Beck.) Lws. all capillaceous-multi- 
fid; fis. as large as in R. acris. 
14. R. aquarinis. @. capillaceus. River Crowfoot. 
Sé. floating ; submersed lvs. filiformly dissected ; pet. obovate, larger than the 
calyx, white; carpels transversely rugose.—Ponds and sluggish streams, Arctic 
Am. to 8. Car. W. to Rocky Mts. The whole plant is submerged: except the 
flowers, and perhaps a few of the upper leaves. Stem 1—2f or more in length, 
slender, weak, round, smooth, jointed. Leaves divided dichotomously into 
numerous, hair-like segments, in outline roundish and }—1/diam. Peduncles 
thick, 1—14/ long. Flowers smaller than in R. acris. Petals rather narrow, 
white, except the yellow claws. Jl. Aug. 
Observation.—Several of the above mentioned species are double-flowered in cultivation, as Nos. 8, 9, 
and 12. Of foreign species, R. Asiaticus, the garden Ranunculus, with large double flowers varying to 
every hue, and R. aconitifolius, with white double flowers, are sometimes, but not generally, found in 
our gardens. . 
6 CALTHA. 
Gr. kadaSos, a goblet ; the yellow calyx may well be compared to a golden cup. 
Calyx colored, of 5 orbicular sepals, resembling petals ; corolla 0; 
stamens 00, shorter than the sepals; follicles 5—10, oblong, com- 
pressed, erect, many-seeded—% Aguatic and very glabrous. 
C. patustris. Marsh Marigold. Cowslips. 
St. erect; dvs. cordate, suborbicular, crenate—Wet meadows, Can.to Car. 
W. to Oregon. Root large, branching. Stem abcut If high, hollow. round, 
Bo 
ad 
