OF ARTS AND SCIENCES : MAY 30, 1865. 527 



turn, in the manner of the Diphysi, — to which this remarkable species 

 would belong by its fruit ; but its habit is of the Lotijlori, and the 

 short wings and standard are pecuUar. 



Astragalus ptcnostachius : caule valido foliisque pube molli 

 canescentibus ; stipulis scariosis discretis ; foliolis multijugis oblongis 

 apice obtuso vel retuso mucronatis ; pedunculis folium a?quantibus ; 

 spicis etiam fructiferis densissimis oblongis vel cylindraceis ; calycis 

 pubescentis dentibus subulatis tubo brevi-campanulato brevioribus ; co- 

 rolla ut videtur pallida ; leguminibus ovatis coriaceis glabris turgide 

 lentiformibus stylo cuspidatis baud stipitatis calycem 2 — 3-plo excedenti- 

 bus in spicam retrorsum congestis 1 -3-spermis (ovulis 5), sutura neu- 

 tra intrusa. — Baulinas Bay, in salt marshes within reach of tide, H. 

 N. Bolander. — I have not seen the base of the stem : it must be more 

 than a foot high, and rather stout. Leaflets 3 to 6 lines long, equally 

 canescent-downy on both sides. Peduncles from all the upper axils, 

 2 or 3 inches long. The very compact spike an inch long in flower, 

 2 inches long in fruit. Flowers about 4 lines long, on very short pedi- 

 cels : the corolla apparently white or ochroleucous. Legumes 4 or 5 

 lines long, the valves strongly convex, rather thin coriaceous, and with 

 a few transverse veins ; the sutures acute, the ventral one only promi- 

 nent. The species would be arranged among the Scytocarpi ; but 

 it is quite different from any other North American Astragalus. 



The following new triphyllous species, from a region east of the 

 Rocky Mountains, may be added. 



Astragalus tridacttlicus : {TriphyUi,) habitu foliisque A. tri- 

 phylli Pursh ; floribus bis terve minoribus ; calycis dentibus tubo £equi- 

 longis ; corolla pallide purpurea ; legumine globoso-ovoideo puberula 

 calyce deciduo nudato ; stipulis extus villosis. — Flores lin. 5 longi. 

 Legumen lin. 3-4 longum, turgidissimum, 12-ovulatum. Semina matu- 

 ra 3-4, ratione leguminis magna. — Near Boulder City, Colorado Ter- 

 ritory, in dense tufts or mats, on gravelly knolls. Dr. C. C. Parry, 1864.* 



* Dr. Parry's collection of 1864 contains the following other Astragali which 

 deserve notice : — 



AsTEAGALCS JUNCECS, Gray, Rev., p. 230, with the teeth of the calyx in one 

 specimen somewhat larger and sharper, so that this very rare species may pass into 

 A. ditersifolius. 



Astragalus Fendleei, Gray, just lilic the original, No. 157 of Fendler's col- 

 lection, but probably passing into A.Jiexuosus. 



Astragalus glabriusculus, Gray (Phaca, Hook.), verging towards A. ab- 

 originum, of which it is probably only a variety. 



