44 PLANT-E "WKIGHTIANJE. T. 



ovato-lanceolatis e basi ad apicem usque attenuatis acutis integerrimis scabrido-pube- 

 rulis ; pedunculis paucifloris folio brevioribus; bracteis bracteolisque subulatis mini- 

 mis deciduis ; pedicellis fiore aequilongis ; calyce profunde bilabiate, labio superiore 

 vix emarginato, dentibus lateralibus et infimo ovato-oblongis subsequalibus tubo pau- 

 lo brevioribus ; legumine compresso lato-lineari falcato pubescente ; seminibus com- 

 planatis leviter rugosis. — Mountain valley, thirty miles east of El Paso ; Sept. — 

 Plant in general aspect and foliage much resembling a slender narrow-leaved variety 

 of P. helvolus : but the leaves are more tapering and pointed ; the 2 - 3-flowered 

 peduncles are shorter than the leaf, and seldom longer than the common petiole; 

 and the pedicellate flowers are smaller than those of P. perennis. It belongs to the 

 section Drepanospron, having a flat and falcate legume, not much curved, two inches 

 long, a quarter of an inch wide, 8 - 9-seeded. Seeds oval, compressed, somewhat 

 shining, lightly rugose. The leaflets are from one to two inches long, varying from 

 ovate-lanceolate to lanceolate from a broad base. 



•]" P. PAUciFLORUs, Benth. Comm. Legum. Gen. p. 76. P. leiospermus, Torr. Sf 

 Gray, Fl. 1. p. 280; Grai/, PI. Fendl p. 30. Western Texas. — Without 

 doubt the P. leiospermus is the same as the earlier P. pauciflorus of Bentham, 

 which was overlooked in the Flo7-a of North America. P. diversifolius and P. hel- 

 volus have not woolly nor pubescent seeds, but they are furfuraceous with a meali- 

 ness that rubs off', leaving a smooth and shining testa. 



X Rhtnchosia Texana, Torr. 8c Gray, FL 1. p. 687 ; Gray, PL Lindh. 2. p. 

 171. Between Texas and New Mexico; coll. of 1851. — The small flowers are 

 either solitary, in pairs, or in fascicles of three or four in the axils of the leaves. 

 The subulate teeth of the calyx are considerably shorter than the corolla, in well- 

 developed flowers. 



109. P. Texana, var. angtjstifolia : ramis elongatis subvolubilibus ; foliis pie- 

 risque vel superioribus lanceolatis sen oblongo-linearibus ; floribus ssepius majoribus 

 2-4-natis nunc subracemosis. — P. dingn&i\io\\a,, Fngelm. in litt. Prairies of the 

 Sabinal and Turkey Creek, Western Texas, June ; climbing over low bushes, &c. 

 (Prairies near New Braunfels ; climbing over herbaceous plants and shrubs of from 

 5 to 7 feet in height, Lindheimer, July, 1850.) — Mr. Wright's collection of 1851 

 contains numerous intermediate specimens between this and the described P. Texa- 

 na, showing that it is only a more luxuriant form. The leaflets of the lower leaves 

 are mostly oval, rounded, or rhombic-ovate, varying from half an inch to more than 

 an inch in length ; while those of the branches, especially the voluble ones, be- 

 come lanceolate, linear-oblong, or even linear-lanceolate, of about the same length, 

 or some of them, in Lindheimer's specimens, even two inches long. 



110. Galactia makginalis, Benth. Comm. Legum. Gen. p. 62 ; Torr. Sf Gray, 

 Fl. 1. p. 288. Western Texas. 



111. G. Wrightii (sp. nov.) : herbacea, suberecta, pube tenui appressissima 

 cinerea ; ramis subvolubilibus ; foliis trifoliolatis ; foliolis oblongis utrinque obtusis 

 mucronulatis supra glabellis subtus argenteo-cinereis, lateralibus breviter petiolulatis ; 

 racemis folium superantibus multifloris ; calycibus bracteisque canescentibus. — 

 Hills near the Limpia ; Aug. — Stems branched from the base, slender. Leaflets 



