448 
BOTAKY. 
lets oblong and atteniiate at base ; stipules entire or 3-parted ; flowers in dense beads, sborter tbau tlie 
laciniate bracts; accessory lobes lanceolate-subulate, sborter tban tbe broadly-cuneiform petals.— 
Oregon. 
4. H. BoLANDERi, Gray. Proc. Amer. Acad. 7. 338. Low, ctespitose (?) or prostrate from a woody- 
tufted eandex ; leaves villous-boary witb a soft dense pubescence ; leaflets palmately 3-5-cleft ; stipules 
narrow-linear, entire ; flowering stems 3-5' long ; cymes small, dense ; calyx deeply 5-cleft, tbo accessory 
lobes oblong, about balf-sborter than tbe broader true ones ; petals obovate, scarcely unguiculate ; fila- 
ments lanceobite.— Clear Lake, California, (Bolander.) 
* * Leaflets narrow, lobed or deeply incised, the lobes or segments linear ; stipules laciniate or pec- 
tinate ; accessory calyx-lobes linear or subulate ; cymes at length perfect, many-flowered. 
5. H. FUSCA, Lindl. Subviscid-pubescent, 2-3° higb : leaves at lengtb glabrate ; leaflets cuneate-ob- 
long, incised; accessory lobes linear, mucb sborter and smaller than the triangular-lanceolate true ones; 
petals narrowly cuneate, obcordate. — Oregon, (Douglas.) 
6. H. COXGESTA, Hook. Villous-bearded, nearly glabrous above, l-20bigb; lea tiets narrow ; cune- 
ate, iiR-is. d cliicfly at apex ; accessory lobes lanceolate, mucb sborter and smaller tban the triangular 
truii ones ; petals broadly obovate or rounded, with a narrow claw.— S. Oregon ; K. California. 
7. 11. teni ii.oha, Gray. Villous-canescent ; leaflets 3-4''' long, cuneate in outline, deeply palmately 
4-8-par';ed, tbe middle sinus often the deepest, the lobes linear; accessory calyx-segments linear, about 
e<;iialiii<; the lanceolate true ones; petals 3" long, narrowly oblong-spatulate, not imguiculate, emargi- 
nate ; tilaments lanceolate.— St. Kosa Creek, California. 
IVESIA. 
* Flowers yellow, crowded at tbe top of tbe scape ; stamens 5-10 ; leaves mostly radical. 
1. I. GORDOXI, T. & G. Mostly viscid-pubescent, 3-8' higb ; calyx turbinate ; stamens 5 ; receptacle 
long-villous. See page 90. 
2. I. LYCopomoiDES, Gray. Dwarf, l|-3' high, nearly glabrous; leaves 1' long, caispitose-crowded 
upon tbe thick caudex, tbe quasi-verticillate pinna? densely crowded, tbe very small leaflets 5-7-divided, 
tbe oliovnte-ronndfd segments rather thick, imbricated around the racbis ; scape capitately 3-5-floW' 
ered; stamens 5, (sometimes 10-15;) receptacle long-villous, (but less so, and calyx more shallow ;) 
carpels 5-Ki.— .Mt. I):uia and Boav Mt., California ; alpine. 
3. I. rv.;.\r.i::A, Gray. Witb the habit of the last, but minutely glandular; leaflets less crowded, the 
oblong segments bristle-tipped; bracts and calyx sparingly hirsute ; stamens 10; receptacle short-hairy 
in the shallow calyx ; carpels 7-15.— Sierras of California ; alpine. 
Flowers white, with 15-20 stamens; stems slender, more leafy ; cymes panicled ; leaves white- 
woolly or glabrous, often terete with the imbricated leaflets ; filaments very slender. 
4. I. PiCKERiXGir, Torr. White-woolly, 1^ high ; leaves at first terete, the leaflets at lengtb slightly 
spreading, .l-o-parted or cut, the segments oblong ; pedicels shorter than the calyx, which is obconic- 
campanulate in fruit ; accessory calyx-lobes ovate-lanceolate ; stamens 20, in 3 rows ; anthers mucron- 
ulate ; carpels 4-6.— California or Oregon, (Wilkes.) 
5. I. KixGir, S. Watson. Resembling the last ; glalu-ous and glaucous, excepting tbe subpubescent 
calyx and elongated pedicels. See page 91. 
6. I. SAN-Tor.ixoi[>ES, Gray. Proc. Amer. Acad. 6. 531, and 7. 339. A span to 18' high, white-woolly ; 
leaves tcr.'t,'. the vt-ry small 3-5-parted leaflets very closely imbricated upon the racbis, the segments 
oval, obtuse ; cyme at l.^ngth cfriise, very much branched, the branchlets and pedicels (3-6' long) capil- 
lary ; calyx-tul)(> cup-sluii.c(l, twice longer tban its lobes, the accessory segments small, ovate ; flowers 
8m;ill, scarcely :'. l,!-..a,l, the lu tals orbicular, sessile ; stamens 15, one before each true calyx-lobe and 
two before eacli petal; lilameuts capillary, equaling tbe calyx; anthers didymons, not apiculate ; carpel 
solitary upon tbo very woolly receptacle, subreniform-globose, utricular, filling the connivent fruiting 
calyx. — Sierras of California. 
* * * Somewbat anomalous and diverse species. 
7. L rX(,t irt-LATA. Gray. Proc. Amer. Acad.7.?^3'J. Loosely villous, about 1° higb; leaflets very 
numerous, 2-3 ' long, qn.isi-veiticillate, lax, mostly twice-2-parted, tbe segments linear; stipules spar- 
ingly laciniate or entire; tiowers clustered in short-pednncled cymes, tbe pedicels very short ; calyx 3'/ 
long, deeply cleft, the accessory Inhes linear, nearly equaling the very acute triangular-lanceolate true 
ones: petals 2" long, broad-cuiieate Avith long slender claws ; stamens about 1.5, tbe filaments filiform- 
subulate; carpels 5-8; receptacle sparingly villous.— Yosemite Valley. 
8. I. TRiDEXTATA, Gray. Proc. Amer. Acad. 7. 338. (HorMia, Torr.) Tery softly villous ; stems 
