DESClUrXlON OF srEClES— LEGUMlNOSiE. 301 



I^ «• K •■•••'"« s i J c s ! a r a c Bi i o i d «> s , Lesqx. 



I'hito LIX, Fi^s. l:!, 11. 



CarpolMes arachioUUs, Lesqx., Annual Kepoi t, l^T-J, \>. 103. 



Capsules or siliqucs alternate and sessile, on flexnons, tliiek, wooily pedicels; ohovate, rounded to 

 a short acumen, mostly enlarged on tho lower side, bossed under tlie point as inclosiuf; a round seed, 

 regularly striated with narrow ridges, t'enerally teudins in a curve from the borders to the point, 

 obscurely and transversely wrinkled. 



These capsules, or pods, are turned upwartl iu the upper jtart of (lie 

 branches, horizontal or pending in the lower part, two and a iialf centimeters 

 long, one centimeter broad in the middle, flattened by compression, but gen- 

 erally convex or inflated near the point, as from the presfMice of an inside, 

 ]i\r"e. round seed: narrowed in curving to a very short, broad, petiole. The 

 relation of these racemes of fructification is as yet uncertain; they seem to 

 belong to the Lcguminosa; especially resembling branches bearing frmts ot 

 our Arachis hypogaa, Linn., the Ground-nuts of the South. But they do not 

 bear at the basc^ any trace of remains of the calyx or receptacle, which, in 

 the species of this family, is scarcely absent except perhaps in the fructifi- 

 cations of some Sclerolobium, Cenostigma, etc. I'ig. 14, left side, has the 

 l)edicel attenuated and elongated as i)art of a broken tendril. 



Habitat. — Evanston, Wyoming; in a l)lock of iron-stone taken out from 

 the mines. No leaves or any other vegetable remains were recognizable 

 but these. The fruits appear of a hard, woody consistence. 



INCERTiE SEDIS. 



PHYLLITES, St. 

 Pliyllitos Sapiiidiforiii is, sp. nov. 



Plate XXIX, Figs. 6, 7. 



Leaves small, linear, subfalcate, entire, narrowed to an inequilateral base, pointed or acuminate; 

 lateral nerves close, parallel, camptodrorae, separated by short ti^rliary ones. 



These two fragments of leaves, mixed upon tiie same specimens with 

 those of Ficus nrenacca, cannot be referable to this species, though they have 

 some characters iu common: tho thick consistence, the entire borders, and 

 the inequilateral base. The upper part of these leaves is destroyed; they 

 seem to be acuminate and somewhat turned to one side, like leaves of 

 Sapimlus. They are also related to this genus by their nervation. The 

 relation is, however, distant, not more definite than with some Leguminosui : 

 Cassia, Podogonium, etc. 



Habitat. — Green River group, Wyoming {Dr. F. V. Hayden). 



