60 PROCEEDINGS OF THE ACADEMY OF 



101. PsORALEA LAXCEOLATA, Pursh. 102. P. FLORIBUXDA, Nlitt. 103. P. ARGO- 



phylla, Pursh. 104. Daleaalopectroides, WilicL 105,. Petalosteaiox macro- 

 8TA4 myes, Torr. lQjj. Astragalus Kextrophyta (Kentrophyta montana, Nutt.) 

 107. Thermopsis rhombifolia, Nutt. (the smaller plant and the fruit), and ap- 

 parently T. pabacea, var. montana, Gray (T. montana, Natt.) : the latter should 

 be known by its taller stems, lai r leaflets, and narrow, linear, pubescent, erect 

 legumes. 108. Hosackia Pcksihax A, Benth. 109. Lathyresoexatus, Nutt., 

 and a pube^ent variety. 110. L. linearis, Nutt. 111 . L. polymorphs, 

 Nutt. 112. L. palltptris, var. myrtifolius? a small portion, and mainly 



VrilA AMERICANA, Muhl. ]13 T ASTRAGALUS RACEMOSUS, Plirsll. 114. A. 



(Pbaca, Hook.) bisulcatus, Gray •, in fruit. 130. Same in flower. IT^. A. 

 (Phaca, Hook.) nigrescexs, Gray. 116. A. (Phaca, Hook.) glabridsculus, 

 var. major, foliolis anguste oblongis. Very likely, as Hooker conjectured, 

 a form of A. aboriginnm. A narrow, membranous, rudimentary f&lse septum 

 is borne on the dorsal suture, in the manner of A. Hobb ins ii and A. alpinus, to 

 which, indeed, the species is related. It was collected in the mountains, 

 "at middle elevation ; not common." 117. A. oroboides, Hornem. {Phaca 

 e ■ ns, Hook.) " Along the bank of streams, at middle elevations, and subal- 

 pine/ 5 Yery fine specimens, both in flower and in fruit ; the former with 

 linear leaflets, like the original P. elegans; the latter with broader and giabrate 

 leaflets, just like Bourgeau's specimens from the Saskatchawan. 11 8 . A. 

 FLExrosis, Dough (Phaca jlexuosa and P. elongata, Hook.) Legume? straight or 

 slightly curved. <; Low mountains and plains ; common." 1 1,9 . A. gracilis, 

 Nutt. With the last. 121 . A. near Phaca debilis, Nutt., but larger in ail it 

 parts. To be determined hereafter in a general revision of thefi] ies.* 122. 

 A. mollissimcs, Torr., of which the stipules were wrongly described, a form 

 with silvery instead of yellowish pubescence. Fine specimens, same as Par- 

 ry's 184, doubtfully compared with A. f/lareosns, still without fruit. "On 

 the plains ; scarce." l, ^. A. Parryi, Gray ; now collected with ripe legumes, 

 which are so obcompressed and sulfate both sides that the sutures meet. 

 ti Common both on the low mountains and subalpine.'' 124. A. De mondii, 

 Hook. 125. A. alpixus, L. " From middle elevations tofouly alpine." 12$. 

 A. cyaxeus, Gray, PI. Fendl. Specimens more luxuriant than Fendler's ; the 

 leaflets oval, half to two-thirds of an inch long, and young pods nearly two 

 inches long. This is likely to be A. Short ianus, Nutt., of which I have seen 

 no specimens ; but the flowers are deep blue. " Low mountains, and rarely 

 subalpine; a fine species." 127. A. Missouriexsis, Nutt. 128. A. sparsi- 

 florls, n. sp., to be elsewhere characterized in a revision of the North Amer- 

 ican species. u On low mountains ; rare." 129. Perhaps a vari< f of the 

 last, with more numerous flowers and larger legumes. 141. A. (Phaca) pau- 

 CIFLORUS, Hook. ? A giabrate, slender form, the same as Phaca paucfiora, 

 Nutt. " South Park, common, apparently a good forage plant." (Ft ller's, 

 No. 144 is the same.) 130. A. (Phaca) bisulcatus, Gray, in flower. 131. A. 

 ( Phaca) lotiflorus, Hook. , very fine specimens in flower and fruit. 132.Tfniit) 

 & 1£3. (ft.) A. caky" carpi . Ker. 134. A. (Phaca, Hook.,) pectixa 3, Gray. 

 lofL A. striate-, Nutt. ! 137. A. (Phaca, L.) frigidus. with perfectly glabrous 

 legumes, as in other American specimens. " Subalpine, in wet pine-woods." 

 £. A. (Phaca) fimfolius, I tray, in Pacif. R. R. Exped. Phaca long- ', Nutt. 



. . A. Hypoglottis, L. 14e . A. (Orophaga) sericoleucus, Gray (PA' a seri- 



cea. Nutt.); charming specimens of an interesting i>lant. ■%£2* Homalocg/s 

 deccmbens, Nutt. Also42^of Parry, very sparingly collected. Its name as 

 ar. 1st gains can be settled only upon a revision of the species. 1 20 . (and 

 4__of Parry,) Oxytropis deflexa, DC. 135. 0. splexdexs, Dougl. ; worthy 

 of the name. 1,40. O. Lamberti, Pursh, with purple or blue, and with white 



* The name Astragalus debttrt couM properly } retained (ot Phaca debitis of Nn trail. For 

 there 13 no A. tUbili$ of Douglas : that to given in Walp. Repert. I, p. T10. beii an ae ental error 

 fir A. miter > Dougl. 



[Mar. 



