somewhat longer than the nearly equal calyx-segments, a little shorter than
the slightly exserted stamens ; styles filiform, at length exserted.—Pursh !
fl. 1. p. 188 ; DC. 1. c. H. reniformis, Raf. tried, flora, l. c. ?
High mountains of Virginia and N. Carolina, Pursh! May-June.—
Resembles the preceding species; hut the flowers are rather smaller.
Calyx-segments short, obtuse. Limb of the petals undulate towards the
apex, very broadly spatulate or somewhat rhomboid.—We are not aware
that this species has been collected by any botanist except Pursh, (one of
whose specimens is preserved in the herbarium of the late Prof. Barton, and
another very poor one in that of Mr. Lambert), and perhaps Rafinesque.
8. H. Richardsonii (R. Brown): scape naked, hairy and scabrous; leaves
roundish-cordate, with a deep sinus, somewhat 7-lobed, incised and crenate,
ciliate, nearly glabrous above; the veins beneath and petioles hairy; panicle
thyrsoid or racemiform, narrow; bracts lanceolate, laciniate-fimbriate; limb
of the calyx unequal, oblique ; petals cuneate-obovate or spatulate, ciliolate,
scarcely exceeding the calyx-segments, nearly the length of the stamens;
styles filiform-subulate, included.—R. B r .! in Richards, appx. Frankl.
joum. p. 53, t. 29 ; DC. L c .; Torr.! in ann. lyc. New York, 2. p. 204 ;
Hook.! fl. Bor.-Am. 1. p. 237.
Rocky banks of rivers, from lat. 54° to 64°, Richardson ! and west to the
Rocky Mountains, Drummond ! Also on the prairies of the Missouri, Dr.
James !—Lobes of the leaves short and obtuse ; the obtuse teeth mucronate
with a short bristle. Scape 12-18 inches high. Flowers greenish, larger
than in H. pubescens. Petals somewhat unequal.—In the beautiful figure
cited above, the styles are wrongly represented as united below, the bracts
are not well given, and the plant is represented as perfectly glabrous.
The specimens of Drummond and those of Dr. James are precisely alike,
but have the scape and petioles quite hirsute.
§ 3. Filaments and styles terry short, subulate, included: calyx campanulate;
the lobes erect and somewhat unequal: petals minute and often fugacious,
or none: flowers usually large, glomerate or spicate. — H olochloa,
Nutt. mss.
9. H. cylindrica (Dougl.): scape elongated, wholly naked; the lower
portion, with the petioles and veins of the leaves beneath, very villous
or hirsute with spreading fulvous hairs; leaves roundish-cordate, glabrous
above, 5-7-lobed ; the lobes obtuse, crenate with mucronate teeth ; panicle
spicate, cylindrical; bracts scarious, laciniate-fimbriate; petals minute or
none; stamens shorter than the rather unequal segments of the calyx;
styles short.—Dougl. in Hook. fl. Bor.-Am. 1. p. 237 ; Lindl. bot. reg. t.
1924. Holochloa elata & cylindrica, Nutt. J mss.
Oregon, on woody hills and the steep banks of streams, Douglas, Nut-
tall ! May-June.—Leaves small; the crenatures mucronate with a very
short bristle; the margin very minutely hispidly ciliate. Scape 2-3 feet
high, very glandular above. Flowers rather smaller than in H. Richardsonii,
on very short pedicels, forming a compact slightly compound spike
3-4 inches long. Bracts lanceolate, the margin ciliate or laciniately fringed.
Calyx glandular and scabrous, cleft to the middle. Petals mere filiform
rudiments, or none. We find commonly one very small spatulate petal,
with glandular margins, like those of H. Richardsonii but much smaller, and
one or two minute rudiments. The seeds are hispid, as in other species of
the genus.—Mr. Nuttall proposes to separate this and the allied species as a
distinct genus, but their close relationship with both H. Richardsonii and the
succeeding section, forbids their separation except as a division or subgenus.
10. H. glabella: “ slightly pulverulent-pubescent, destitute of hirsute
hairs; scape naked, the flowers in a conglomerate spike; leaves somewhat
elliptical-cordate, obtuse, slightly lobed and very obtusely crenate, minutely
hirsute-ciliate, the teeth apiculate.” Nutt.—Holochloa glabra, Nutt, mss.;
not Heuchera glabra, Willd.
Rocky Mountains towards Oregon; in rocky places.—Allied apparently
'to Heuchera cylindrica, but without hirsute hairs; the plant almost glabrous;
the leaves longer than broad, somewhat truncate at the base, with a small
sinus, the crenatures apiculate with hairs.” Nuttall.—We have not seen
this species ; it is apparently more allied to the following.
11. H. ovalifolia (Nutt.! mss. under Holochloa): “ minutely and somewhat
glandularly pubescent throughout; scapes naked, slender; leaves
roundish-oval, not cordate, often slightly cuneiform at the base, doubly
crenate or crenately incised ; flowers few, in a nearly simple spike ; petals
none ; segments of the calyx ovate, the two upper longer.”
Blue Mountains, Oregon, on rocks, Nuttall!—Somewhat caespitose. Scapes
about a span high; the plant wholly destitute of villous hairs. Leaves
about an inch in length, crenately incised and crenate, the teeth very obtuse
and often slightly apiculate, minutely viscid-pubescent on both sides.—We
have only seen it in fruit.
12. H. bracteata (Seringe): small, nearly glabrous; scape leafless; leaves
forming a radical cluster, roundish-subcordate, incisely lobed, glabrous ; the
lobes short, crenately-toothed, subciliate; the teeth setaceously mucronate ;
panicle glomerate; bracts lanceolate; flowers small; petals linear-spatulate,
very narrow, and, with the stamens, about the length of slightly unequal
erect segments of the calyx; styles subulate-filiform, somewhat included.—
Seringe, in DC. 1. c. Tiarella? bracteata, Torr.! in ann. lyc. New York,
2. p. 204.
On the Rocky Mountains in about lat. 41°, Dr. James !—Caudex thick
and somewhat ligneous. Leaves scarcely more than half an inch in diameter,
cordate or-truncate at the base, coriaceous. Scape 3-6 inches high,
slender, naked, or with 2 or 3 entire or laciniate bracts toward the summit.
Flowers in a spicate somewhat compound raceme about an inch long,
crowded. Calyx glandularly puberulent, campanulate, deeply cleft; the
segments slightly obovate. Petals filiform towards the base, somewhat
persistent; one or two often wanting.—This remarkable alpine species,
much the smallest of the genus, agrees with Holochloa, Nutt, in the structure
of its flowers, which, however, are only about half the size of those of
Heuchera Americana.
§ 4. Filaments and styles subulate, very short: calyx obconic at the base,
rotate, equal: petals small, fugacious: flowers small: panicles narrow,
loose.—H eucherella.
13. H. parvifolia (Nutt.! mss.): scabrous-puberulent; scape naked; leaves
forming a small radical cluster, roundish-cordate, crenately 5—7-lobed, at
length glabrous, ciliate ; the lobes short and rounded; panicle racemose,
rather loose ; bracts small, laciniate-ciliate ; flowers very small; limb of the
calyx flat, dilated; petals minute, caducous; stamens shorter than the
lobes of the calyx ; styles very short, conical.
Rocky Mountains, Dr. James ! Blue Mountains of Oregon, Nuttall!—
Caudex somewhat ligneous, thick. Leaves an inch or more in diameter;
the lobes with one or two crenatures, not mucronate. Scape 8-12 inches
high: panicle brandling below. Calyx-tube obconic, adherent nearly to the