324 LEGUMINOSiE. H osackia.
California, Douglas.—If Size and habit of H. bicolor, but the flowers larg-
er‘ Young leaves and calyces pubescent. Stipules only observable in very
young leaves. Benth. 1
§ 2. Umbels many-(rarely 1-3-) flowered: corolla much longer than the
ca ly x : vexillum on a rather long and slender claw whichis distant from
those o f the other petals : keel obtuse: legume rather terete, incurved,
rostrate with the upper and attenuated portion. Herbaceous or suffru-
ticose plants: leavespinnately 5-7- (rarely 3-) foliolate: stipules minute,
blackish, gland-like.—Drepanolobus, Nutt.
9. H. decumbens (Benth.) : herbaceous, softly pubescent, decumbent;
leaflets 4-5, alternate, oval-cuneate, or rhombic-ovate, mostly acute; peduncles
scarcely longer than the leaves; bracts 1-3-foliolate; legume pubescent
carinate.— Benth. ! in bot. reg. 1. c., $ in Linn, trans. 1. c. ; Hook.! il. Bor.-
Am. l.p . 34. Drepanolobus decumbens, Nutt.! mss. ■
P. glabriuscula: leaves smaller, verdigris-green when dry. Hook. & Am
bot. Beechey, l.p . 137.
Dry open woods on the Oregon, particularly about Fort Vancouver Nut-
ln.ll! Douglas, Scouler! 0. California, Beechey. June.—If Stems 1-2
feet long, forming wide tufts. Leaflets half an inch long, sometimes distant.
Stipules resembling very minute spines, deciduous. Umbels numerous 5- 8-
flowered. Teeth of the calyx as long as the tube. Corolla yellow. Legume
about 2-seededj falcate, the beak longer than the seed-bearing portion.
10. II. tomentosa (Hook. & Arn.): herbaceous, caneseently tomentose
decumbent; leaflets 4-6, obovate, mostly obtuse ; peduncles very short-
bracts 1-foliolate; teeth of the calyx shorter than the tube.—Hook. & Arn.
bot. Beechey, 1. p. 137 ; Benth. ! in Linn, trans. 1. c. Drepanolobus lanatu»
Nutt.! mss. ’
Dry hills in the shade, near Monterey, California, Nutt a ll! Douglas!—
2f Stem and young leaves very woolly and white. Branches spreading
on the ground forming a large patch. Leaflets half an inch long. Um-
bels on the upper part of the stem nearly sessile; lower ones on peduncles
half an inch or more in length. Flowers much smaller than in the preceding
species, yellow, with red wings, &
11. H. micranthus (Nutt.): “ herbaceous, pubescent (particularly the
young shoots), prostrate; leaflets 4-6, euneate or obovate, obtuse; umbels
almost sessile, few-flowered, without bracts, Nutt.! mss. (under Drenano-
lobus.) '
. Near Monterey, California. March-April, Nuttall!— @ Stems spreading
on the ground. Leaves smaller and more rounded than in the preceding
species. Umbels _3-6-flowered ; ,the flpwers minute, yellow. Teeth of
the ealyx short. Vexillum shorter^ than .the keel. Legume pubescent with
a very long involute point. 12
12. H. cytisoides (Benth.): suffruticose, spmewhat'pubescent, decumbent;
branches angular; leaflets 3—6, cuneate-oblong; petioles very short; umbels
many-flowered, on short peduncles; bracts of 1-3 minute leaflets; teeth of
the calyx subulate, recurved .— Benth.! 1. c. Drepanolobus cytisoides, Nutt. f
mss.
0. rubescens: calyx whitish pubescent ; umbels 10-15-flowered; flowers
red mixe.d with yellow; bracts l-fpliolate.—Drepanolobus rubescens, Nutt. !
mss.
Near St. Barbara, California, Nuttall! Douglas ! 0. Near St. Diego, Nut-
iaill ! Stern much branched. Leaflets rather thick, often somewhat acute,
$vtth a feU shpxt oppressed hairs on both surfaces. Stipules rather conspicuous,
resembling tubercles. Umbels 5-10-flowered, the flowers about 4 lines
long, yellow. Teeth of the calyx almost aristate, rather more than hail me
length of the tube.
13. H.prostratus(Nutt.): “ suffruticose, nearly glabrous,prostrate; branches
terete; leaflets 5-7, oblong, obtuse; peduncles longer than the leaves,
often elongated; umbels many-flowered; bracts 1-foliolate; calyx much
shorter than the corolla, the teeth scarcely one-third the length of the tube;
legume with a very long subulate point. Nutt.! mss. (under Drepanolobus.)
“ Plains near the sea; St. Diego, and St. Barbara, California. April.—
Branches numerous, spreading, 2-3 feet long. Flowers as large as in the
preceding species, yellow, the tip of the vexillum and wings red. Legume
nearly glabrous.” Nuttall.
14. ' H. juncea (Benth.): “ suffruticose, glabrous; branches angular and
erect; leaflets 3-5, oblong, obtuse; peduncles very short, 3-5-flowered, without
bracts; calyx somewhat prismatic, with very short pointless teeth.—
Benth. 1. c. Drepanolobus junceus,” Nutt. ! mss.
Dry hill sides near the sea, St. Barbara, California, Nuttall! Douglas.—
Somewhat sempervirent; the branches very numerous and greenish. Leaflets
thick, about \ of an inch long. Stipules hard and persistent, resembling
tubercles. Calyx glabrous, the teeth triangular, scarcely one-sixth the length
of the tube. . Corolla yellow.
15. H. crassifolia (Nutt.) : “ suffruticose, decumbent, nearly glabrous ;
branches angular; leaflets 3-4, oblong or cuneate-oblong, obtuse, thick; umbels
nearly sessile, 5-7-flowered; bracts none; teeth of the calyx about one-
fourth the length of the tube; legume with a very long subulate point.”
Nutt.! mss. (under Drepanolobus.) ■
“ With the preceding—Young shoots pubescent. Flowers of various
shades of y ellow, sometimes nearly red.” Nuttall.
16. H. scoparia (Nutt.): “ suffruticose, erect, much branched, nearly glabrous;
branches terete; leaflets 3-4, linear-oblong, somewhat acute; umbels
sessile, 5-7-flowered; bracts none; teeth of the calyx subulate, about one-
third the length of the tube; legume with a very long subulate point.” Nutt. !
mss. (under Drepanolobus.)
“ With the preceding. March-April.—Stems 3-4 feet high, the upper part
o f the branches loaded with flowers. Leaves somewhat sempervirent: leaflets
4-5 lines long. Glandular stipules conspicuous and persistent. Corolla yellow,
often tinged with red.—Used in California for making brooms.”— Nuitall.
17. H sericea (Benth.) : densely silky-tomentose ; leaflets usually 3; peduncles
very short, 1-3-flowered, without bracts. Benth. 1. c.
California, Douglas.—Near H. cytisoides, but very distinct. Leaves larger,
nearly sessile. Flowers rather larger. Wings slightly but constantly adherent
to the keel. Benth.—Perhaps not of this section, and only referred here
on account of Bentham’s observation, that it is near H. cytisoides.
j 3. Peduncles umbellately 1-3-flowered: corolla longer than the ca lyx:
vexillum on a short narrow claw, which is approximated to those o f the
other petals: keel somewhat rostrate: legume straight, somewhat compressed,
not attenuated above. Mostly annuals : leaves pinnately 5-7-
foliolate, with minute gland-like stipules.—M ic r o l o t u s , Benth. (partly),
Nutt. mss.
18. H. parviflora (Benth.) : erect, nearly glabrous, branched from the
base ; leaflets' 4-6, oblong and obovate, alternate; peduncles 1-flowered ;
bracts 3-foliolate ; calyx one-third the length of the corolla; teeth linear-sub