a a a ee ee ee 
: 
S hate coriaceous, "rather obtuse; spikes elongated, on short pe: 
“@ 313 a 
= 
the ovary. Silicle didymous: the carpels sieeaia, globose, one-seeded, 
(or rarely two- -seeded,) indehiscent, separating from the base of the persis- 
tent § subulate spinescent style: pericarp crustaceo-coriaceo Seed ovate, 
ewhat compressed ; testa membranaceous, the lining ‘much is 
and fle: y- Cotyledons incumbent, linear-oblong; radi¢le posite the 
lacent A smooth annual herb, Leaves ternately par am Tag 
petioles; the leaflets ovate or oblong, entire petiolu 
numerous axillary crowded short capitate racemes, small and ela - 
Oxystytis tuTEA. Torr. and Frém. 
On the Margoza river, at the foot of a sandy hill; only seen in one lacs, ; 
but abundant there. The specimens were collected on the 28th of April, 
and were in both flower and fruit. 
A rather stout plant; the stem erect, a foot or 15 inches high, simple or 
a little branching below, leafy. Leaflets 1—14 inch long, obtuse. a 
of flowers about half an inch in diameter, not elongating in fruit. Caly. 
shorter than the corolla; the sepals acute, yellowish, tipped with — - 
Petals about two lines long. Fruit consisting of two roundish in nt % 
carpels, which at maturity separate by a small base, leaving the "mdeeasad 
pointed style. The epicarp is thin nd slightly corrugated. 
This remarkable plant seems to connect Craeiforen with Ca paridacez. 
The clusters of old flower stalks, with their numerous crowded ou *, 
styles, present a singular PMPRREABES: 
THAMNOSMA. Tee: and Frém.—n. gen. 
Flowers hermaphrodite, (or polygamous?) Calyx 4-cleft. Corolla” e e 
petalled, much longer than the calyx ; the xstivation valvate. Stamens 8, 
in a double series, all fertile. Ovaries 2, sessile and connate at the summit 
of a stipe, each with 5 or 6 ovules in 2 series; styles united into one; 
= E stigma capitate. Capsules 2, sessile at the summit of the stipe, subglobose, 
A oe below, (one of them sometimes woah coriaceous, i -seeded. 9 
See é 
al 
curved, with a short beak, black an od 
inferior. Embryo curved ; cotyledons cane linear, incumbent 
THAMNOSMA MONTANA. . Torr and Frém. * 
A shrub of the height of one or two feet, branching from the pasiwvith 
3 Sapte, very small linear wedge-shaped leaves. The flowers are apparently 
rk purple, in loose terminal clusters. The whole plant hasa ipa aro- 
ots. 
“4 F Shatic odor, and every part of it is covered with little glandulat Al- 
though nearly allied to Xanthoxylum, we regard it as a peculit as Ft 
grows in the passes of the mountains, and on the Virgen river in Northern 
= The tee of it was already in fruit in the month of May. 
5 ODORATA. Torr. and Frém. : * 
Branches ee leaves ccnauatis spines stout, mostly i in pairs, straight; pin oe 
pair; leaflets 6—S pairs, oblong-linear, slightly ie: ol 
3 60 
5. 
Jone. a8, be calyx; stamens exserted ; legume § ir 
es aan cen 
nto | ) 
a 20 a high, with a very broad full head, and the lower 
g to the ground; the thorns sometimes more than an inch 
