44 



PLANTJE WEIGHTIAN^ 



y. 



#: 



t Rhynchosia Texana, Torr. 8r Gray, Fl 1. p. 687; Gray, Pl Lnidh. 2. p. 



171. Between Texas and New Mexico ; . coll. of 1851. -—Tlie 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. R. Texana, var. angustifolia : ramis elongatis subvolubihbus ; foliis ple- 

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

 2 - 4-natis nunc subracemosis. — R. angustifolia, Engelm. in litU Prairies of the 

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

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

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

 contains numerous intermediate specimens between this and the described R. 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 m 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 marginalis, Bentk Comm, Legum. Gen. p. 62 • Torr 8c Graii. 

 Fl. 1. p. 288. Western Texas. i > • 9 y» 



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



cmerea ; ramis subvolubilibus ; foUis trifoliolatis; foliolis oblongis utrinque obtusis 

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

 racemis fohum superantibus multifloris; calycibus bracteisque canescentibus. - 

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



m 



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

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

 mis deciduis ; pedicellis flore sequilongis ; calyce profunde bilabiato, labio superiore 

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

 lo brevioribus ; legumine compresso lato-Iineari 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 n arro w-lea ved 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 ciirved, 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. Legnm. Gen. p. 76. P. leiospermus, Torr. §* 

 Gray, Fl. 1. p. 280; Gray, Pl. Fendl. p. 30. Westem Texas. — Without 

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



which was overlooked in the Flora of North America. V. 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. 



