34 PLANTZX FENDLERIANZ. 
146, A. pipHysus (sp. nov.): subglaber, depressus, caulibus numerosis e radice 
perpendiculari crassa adsurgentibus ; stipulis triangularibus acuminatis scariosis basi peti- 
oli adnatis; foliolis 9—10-jugis carnosulis obovato-oblongis sepe retusis; pedunculis 
folium quantibus; racemo spicato densifloro brevi; pedicellis bractea ovato-subulata 
persistente calyceque cylindraceo brevioribus ; corolla czrulea ; leguminibus membrana- 
ceis inflatis ovatis acuminatis sursum arcuatis suturis utrinque introflexis subdidymis com- 
plete bilocellatis polyspermis nitidis. — Plains, around Santa Fé, in red sandy soil, of a 
low and depressed growth, but forming patches one or two feet in diameter; April to 
May. Mr. Fendler further remarks, that he never observed this plant to be eaten by any 
animal whatever. — This species produces a thick cluster of stems, 6 to 10 inches high, 
from the same fleshy root, and in appearance is not unlike A. caryocarpus and A. tricho- 
calyx, but is smoother, having only sparse and minute appressed hairs on the stems and 
petioles, and sometimes on the midrib of the otherwise glabrous leaflets; and the flowers 
are smaller (barely half an inch long). The pods are remarkably different, being of a 
thin and membranaceous or papery texture, didymous and inflated, about an inch long at 
maturity, pointed and incurved. It is equally distinct from the little-known A. pachycar- 
pus, Torr..§- Gray; which bears a legume that has evidently been succulent before 
ripening, and when dry exhibits the same thickened and cellular walls as those of A. 
caryocarpus and A, trichocalyx, with which it should be associated. 
147. A. pipaysus 8. aLBirLorus. With the preceding, apparently differing only 
in the white flowers. The specimens show no fruit. : 
148. A. cyaneus (sp. noy.): subcaulescens; caudice multicipiti; stipulis triangu- 
laribus vel subulato-lanceolatis ; foliolis 9-14-jugis ovato-rotundis ovalibus oblongisve 
cum petiolis pube minuta strigulosa appressa utrinque griseo-canescentibus; pedunculis 
scapoideis folia subzquantibus angulatis 8 — 12-floris ; pedicellis brevissimis bracteam 
subulatam zquantibus ; calyce pilis griseo-nigricantibus appresso-pubescentibus, dentibus 
subulato-setaceis tubo cylindrico dimidio brevioribus ; corolla cyanea ; leguminibus carti- 
lagineis puberulis ragulosis oblongo-linearibus acuminatis sursum curvatis turgidis poly- 
spermis sutura dorsali profunde sulcata introflexa incomplete bilocellatis, sutura ventrale 
extus prominente. — Santa Fé, on gravelly hills and low mountains among rocks; April, 
May. — A larger plant than A. Missouriensis, which the species most resembles in habit, 
foliage, and flowers ; the mode of growth much as in the preceding, but almost acaules- 
cent. Leaves crowded at the summit of the branches of the caudex or on the abbreviat- 
as 
ed flowering stems, 3 to 6 inches long; the leaflets one fourth, or sometimes nearly one’ 
half, an inch in length, hoary with a close and fine strigulose pubescence. The pedun- 
cles or scapes are stout and erect, 4 to 8 inches long in fruit. The flowers are almost an 
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