!
siliculis glaberrimis orbicularibus compressis reticulatis emarginato-bilobis lobis sub-
divaricatis acutis, stigmate sessili.— Torr. et Gr. Fl. l . p . 116.
A much branched and spreading annual, with long slender racemes of fruit, and recurved compressed
])edicels. The pouch is very similar in form to that of Lepidium bipinnatifidum, but broader at the base,
and with the lobes longer and slightly diverging. The leaves and general aspect of the plant are very different
in the two.
4. 'L.leiocarpum; glabriusculum, caulibus procumbentibus, foliis pinnatifidis, fructus
racemis laxis, pedicellis latis planis patenti-reflexis, siliculis glaberrimis nitidis orbicii-
laribus compresso-planis marginibus subincurvis apice emarginatis, stigmate sessili.
Habit of the preceding, but less slender. The leaves are more pinnatifid ; the pedicels broader and flatter ;
the siliculæ rather larger, very glossy, destitute of reticulation ; the margin a little curved upwards ¡ the apex
with only a minute notch.
1. T hysanoc arpus elegans {Fisch. et Mey.) ; calyce petalis vix duplo breviori, siliculis
orbiculari-ovalibus membranaceo-alatis alis foraminibus plurimis pertusis apice emarginatis,
stylo exserto sinus duplo su p e ran te .—a. siliculis glabris.—T . elegans. Fisch. et
Mey. in In d . S em.9 H o r t Pe tro p .p . 51. Torr. et Gr. Fl. 1. p . 118 fi. siliculæ disco
tomentoso.
A most beautiful species, very different from the original T. curvipes. Our specimens have all a woolly
disk to the siliculæ, in which particular alone it differs from T. elegans, Fischer et Meyer, and is probably
the same as the same authors notice from California, as discovered by M. Deppe, differing only in the longer
style. The present variety is 1 D o 2 feet high, lower leaves slightly pinnatifid and hairy, upper ones glabrous,
entire, sagittate at the base, racemes of fruit 8-10 inches long, Siliculæ of a most elegant structure, margined
with a broad somewhat crenated wing, in which is a range of rather large oblong perforations all round tlie
woolly disk.
2. T . curvipes. Hook. FL Bor. Am. v. 1. p . 69. t. 18, / . A. Torr. et Gr. Fl. 1. p . 118.
—fi. siliculæ disco pubescente.
The var. fi. alone is in this collection, differing in no respect from the original T. curvipes, except in the
downy fruit.
3. T . pidchellus. Fisch. et Mey. In d . Sem. Hort. Petrop. 1835. p. 50. Torr. et Gr. Fl.
1. p . 1 18.—a. silicula n u d a ,—fi. siliculæ disco tomentoso.
These two states of the plant are mixed together, as if gathered in the same locality, and I see no reason
to consider them other than varieties of the same species. The species is chiefly distinguished from T . cur-
vipes by the much longer style, and the scarcely notched apex of the silicula.
4. T .p u s illu s ; pubescenti-hirtus ramosus, siliculis orbicularibus vix alatis pilis p atentibus
u ncinatis utrinque tectis, floribus apetalis. Hook. Ic . PL I. t. 43. Torr. et Gr. FL I.
p . 119.
A very minute plant. The flowering specimens probably do not equal an inch in height, but the inflorescence
runs out into slender racemes, 3 or 4 inches long, bearing siliculæ to the very base. These are scarcely so
large as flax-seed, orbicular, compressed, and not distinctly winged, but clothed all over with spreading uncinate
white hairs.
O r d . V I. C A P P A R ID E Æ . Juss.
1. Cleome lutea. Hooh. F l. Bor. Am . l . p . 70. t. 25. Torr. et Gr. Fl. l . p . 122.
H a b . Snake Country. Between Burnt River and Malheur River. {Tolmie.')
O r d . v i i . V IO L A R IEÆ . DC .
1. V. Muhlenhergiana. Ging.—Hook. FL Bor. Am. 1. p. 78. Torr. el Gr. FL p. 140.
H a b . Snake Country ; at Hans Forks.
2. V . proemorsa. Douglas in Bot. Reg. t. 1254. Hook. FL Bor. Am. I . p . 80. Torr. et
G r .F l . l . p . 14.
3. Y . pedunculata ; caule brevi, stigmate capitato u trin q u e piloso, foliis cordato-rhom-
beis basi subabrupte in petiolum longum attenuatis subpuberulis obtuse crenatis, stipulis
parvis lanceolatis integris, pedunculis elongatis, sepalis lanceolatis acuminatis, petalis
ovato-lanceolatis calcare brevissimo. Torr. el Gr. F L 1. p . 141.
With the exception of the different shape of the leaves, this seems scarcely different from V. Nuttallu,
Ph. and Hook. Fl. Bor. Am. 1. p. 79. t. 26 ; and we had marked it as a broad leaved var. of that species, till
we saw our friends Messrs Torrey and Gray had described it as a new species j whose opinion, in this case,
we are willing to adopt. The flowers are large, handsome, golden colour.
4. V. chrysantha ; subacaulis, stigmate capitato u trin q u e subpiloso, foliis bipinnatifidis
jun io rib u s hirsutis laciniis linearibus integris v. subpinnatifidis, stipulis ovato-lanceolatis
membranaceis integris, pedúnculo elongato, sepalis lanceolatis ciliatis, petalis obovatis
subuniformibus, calcare brevissimo. Hook. Ic. PL t. 49. Torr. et Gr. FL l . p . 143.
One of the most distinct of all the species of this extensive genus. The roof, if it may be so called, seems
to be a congeries of subterranean filiform stems, agglutinated together j the portion of the stem above
ground being very short. Leaves bi- sometimes even tripinnatifid, very unlike those of any other Viola.
Flowers large, golden yellow, the two upper petals with a brown cloud on the outside, the lower with a very
short spur, and a few dark lines above the base. Anthers slightly combined.
5. V. ocellata ; glabra, stigmate globoso-clavato, caulibus erectis elongatis gracilibus,
foliis longe petiolatis cordato-subacuminatis crenatis, stipulis lanceolatis ciliatis, ped u n culis
folio brevioribus, sepalis linearibus, petalis obovatis basi a ttenuatis lateralibus supra
basin barbatis, calcare brevissimo.— Torr. et Gr. FL l . p . 142.
Too near, I am afraid, to V. Canadensis. It is, however, a glabrous plant, very slender. The leaves
are narrower, the flowers smaller, the upper petals deep purple, the two lateral ones with a purplish spot
above the beard, the rest of the flower nearly white.
O r d . V I I I . C A R Y O PH Y L L A C EÆ . Juss.
1. Arenaria rubra. L .— Hook. FL Bor. Am. I. p . 98.— Spergola rubra. Torr. et Gr.
Fl. i . p . 175,
2. A. verna. L .— Hook. FL Bor. Am. 1. p . 99. Torr. et Gr. I. p . 161.—S. p arce pilosa
glandulosa, capsula majore.