432 
BOTANY. 
§ EUSILENE. Calyx lO-nerved, veinless or the nerves anastomosing. 
* Inflorescence more or less compoundly divaricate, the branches equal or slightly unequal, (in a few 
foreign species one of the pair reduced to a simple pedicel,) or in some perennial species the stem 
1-2-flowered. (Dichasiosilene.) , 
(rt.) Perennial, dwarf, 1-flowered ; calyx campannlate. (Xanoailene.) 
3. S. ACAXJLis, L. See page 36. 
(b.) Perennial; inflorescence veiy compound ; calyx obconic. (Brachiantlia^.) 
4. S. MENZlEsn, Hook. See page 36. 
(c.) Annual; opposite branches equal or nearly so ; calyx glabrous or rarely ghindiilar-pubescent, in 
fruit contracted at top. (Leiocalycinw.) 
5. S. ANTIRRHIXA, L. See page 36. 
» * Perennial ; inflorescence a simple or compound raceme, the branches short and few-flowered, or 
elongated and again racemose or cymose or verticillastrous. {BotryosUene.) 
(a.) Flowers in simple racemes, the branches short, 1-flowered or the lower 3-7-flowered ; pedicels 
bibracteolate at base ; petals emarginate. (Clilorantlue.) 
6. S. Drummondii, Hook. See page 37, under Lyclmis. As there stated no specimens are found in 
our herbariums other than with 4-5 pistils and 4-5 teeth to the capsule. Bourgeau's specimens from the 
Saskatchewan are similar. This species, under Dr. Eohrback's limitations, is strictly a Viscaria. 
(h.) Flowers in simple or- compound verticillastrous racemes; pedicels bibracteolate at base. 
{Otitew.) 
7. S. Bridgesi, Rohr. Roughish-pubescent, subviscid-glandular above; stem simple, erect; leaves 
long-lanceolate, acute ; bracts and bractlets ovate, acute, densely ciliate ; flowers in a simple verticillas- 
trous raceme, the pedicels equaling the oblong dilating calyx ; calyx-teeth long, obtuse, ciliate ; petals 
white, long-linear, bifid with very narrow lobes, the claws ciliolate at base and with the filaments much 
exserted; capsule ovate-globose, 3-4 times exceeding the stipe; seed large, channeled on the back.— Cali- 
fornia. 
(c.) Flowers in a subcompound raceme ; claws and filaments wooUy-ciliate. {Lasiostemones.) 
8. S. ixcoMPT.v, Gray. {S. Engelmanm,'RohT.) Densely roughish-pubescent, glandular above ; stems 
sxtrcading, leafy; leaves oval-lanceolate or oblong, acute ; pedicels shorter than the subnodding flower; 
« ulyx-ti-etb lanceolate, acute, ciliate, the tube cylindric, becoming ovoid ; petals vrhitish, the limb small, 
liivi^av-ohlong, scarcely broader than the obtusely auricled claw, bifid, the segments emarginate or 2-lobed, 
the appendages subulate ; capsule ovate, very short-stipitate.— California. Dr. Gray's name seems to be 
the older. 
9. S. SCOUI.ERI, Hook. Stem erect ; leaves lanceolate or linear-lanceolate, acute ; racemes narrow, 
few-flowered ; flowers erect or nodding, longer or shorter than the pedicels ; calyx oblong-clavate, some- 
wliat dilating, the teeth broad-lanceolate, acutish, slightly ciliate ; petals white or pinkish, bifid, the 
lol)(>s ()bl(uig, emarginate, the appendages obtuse ; auricles of the claw acute ; capsule ovate-oblong, 3-4 
linn s longer than the stipe. — Rocky Mts., from British America to New Mexico ; Washington Territory. 
(d.) Flowers in a loose compound raceme ; claws and filaments glabrous. {Nutantes and Italicaj.) 
10. S. STELIATA, Ait. From Canada to Georgia and west to Hlinois and the Indian Territory. 
11. S. OVATA, Pursh. Stout, 2-4° high; leaves in pairs, large; calyx tubular; petals gash-fimbri- 
ate. — Georgia and Carolina. 
HOSACKIA. 
Follow ing Dr. Gray's Synopsis, Proc. Acad. Fhil., Dec. 1863, pp. 346-352. 
ij 1. SYRMATIUM, Vogel. Legume small, 1-4-seeded, subulate or attenuate, often torose, incurved. 
Ket'l not attenuate tipward, mostly obtuse ; claws slightly exserted or included, that of the 
vexillum souiewliat apart. Perennial herbs or somewhat shrubby, {H. micraniha annual,) with 
very short .3-7-foliolate leaves and black glandular stipules ; flowers in sessile or short-peduncled 
umbels, small, yellow or whitish, often turning reddish. 
* Mostly shrubby, with rigid slender branches, glabrous or silky puberulent becoming glabrate ; 
leaflets 3, sometimes 5, small, thick, somewhat evergreen. Californian. 
