APPENDIX. 
437 
)IS- 
24. A. LEPTOCAKPUS, T. & G. Subglabrous ; pods 1' long, thin, straight, spreading, less reticulated, 
glabrous ; corolla 4-5'' long, curved apex of the keel narrower.— Arkansas ; Texas. 
***** Flowers larger, many, loosely spiked, apex of the keel produced, indexed, obtuse ; pod 
(immature) oblong-linear, sub-obcompressed. Perennial, procumbent ; leaflets linear, acnte. 
25. A. AmzoNictrs, Gray. Proc. Amer. Acad. 7. 398. Woody at base, hoary with a stri-nht-.,. ],ii,„ „ 
cence; leaflets 5-7 pairs; peduncles exceeding the loaves; calyx-teeth subulate, equaling the cauipauu 
late-tube; corolla 6" long, white, purplish above. — Arizona. 
^ 9»-. Anomalous species. Pod chartaceous, sessile, 9-12" long, liuenr- or lance-oblong, arcuatcly 
incurved, subcompressed, somewhat sulcate dorsally, ventral suture aciile, 'i-cellcd, nrany-seeded, 
deflexod. Perennial, caulescent, pubescent or villous; stipules aduate to the prtiule, di.stinct ; 
spikes many-flowered ; flowers 6-9" long ; peduncles exceeding the loaves. 
26. A. Andersonii, Gray. Pubescence soft ; spikes short . St ii page 67. 
27. A. MALACUS, Gray. More rigidly villous ; spike elongating. See page 67. 
^ gb. Anomalous and rather diverse species, near $ Oroloidei, but with the \uu\s c, .uij.lctely 2-celled or 
very nearly so, and more symmetrical and terete ; caulescent, pcrcnui:!!, (rMcpt .(. t,),n:) 
* Pod curved. 
28. A. BOLANDEIU, Gray. rro<: Anhr. Aciid.l. :V.]7. ('iucivoiis-jnil)! riilciit, ;il)oiil 1 lii-li ; si 
short, scarious, sheathing ; leaflets 6-9 i»air.s, suhlincar and ohloug ; jM'diiiiclfH shorter limn the U-af 
capitately many-flowered ; pedicels very short, reflexcd in fruit : < nly\-lr. t h subsetaceous, little shorter 
than the cjdindrical tube ; pod coriaceous, ovate, R-9 ' long,;;-!' hruad, obcoiiipressi^d, turj^id. hamately 
incurved, acute, stipitate, glabrous, many-si rdcd, scplmn p. if. rt; siipt | loui;.— Vos. miic Valley, 
(Bolander.) ' 
* * Pod .straight. 
29. A. AURECTUS, Gray. Pod oblong, stipitate, erect upon a spreading pedicel. See ])age 69. 
30. A. ATRATUS, S. Watson. Pod linear, short-stipitate, pendent. See page 69, and Plate XIV. 
31. A. 015SCURU8, S. Watson. Pod linear, sessile, erect. See page t'tl). 
32. A. TKNER, Gray. Annual, a span high, erect, strigulose with very sliort black and wiiitish hairs ; 
stipules small, ovate, scarious ; leaflets .5-7 pairs, iim ar-cuneate or nearly linear, !>roailly eniarj;inati> or 
obtuse; flowers few, capitate, violet, the wings and especially the banner nuuii excee.liujr the keel • 
immature legume more or less deflexed, 6" long, lance-lincar, silky-puhendent. shurt-stijirtate. ]ti-l-^- 
ovuled, 2-celled, the cross-section ohcordatc. — California. 
§ 10. SuccuMBENTES. Pod chartaceous-coriaccous, sessile, long-linear, stron-ly cnnipressed, falcate 
upward, Incarinate and deeply sulcate on the back, the ventral suture prominent and acute, 
2-celled, cross-section Y-shaped. Low, difl'use, flexuous; peduncles short; stipuh's free, distinct • 
flowers f long, rather loosely capitate, purplish ; calyx cyiindi ic. 
33. A. succuMBEXs, Dougl. Cinereous-hirsute; leaflets obovatc; pods erect on spn-adin;; jiedicels 
shining, reticulated. — Oregon. 
§11. Galegiformes. Pod exsert-stipitate, pemlent, coriaceous- or cartilaginous-chartaci <.ns, \, iy 
glabrous, straight, narrow, more or less Iriangular, very deeply sulcate dorsally. 1 he sui ine in- 
truded to the middle or beyond. Pereniiia! ; stems <'re<:t. sfoiit, sulcate. \c! \ h af\ : stipules dis- 
tinct, free; flowers in long cmwdeil raceim s, rather Jar-e, white. 
34. A. Dur.MMOxmi, Dougl. Softly villous ; calyx scarcely j;ihh(»us at has<'. l.lack-hairv, the .snhnJ,iti> 
teeth shorter than the tube ; pod long-linear, terete with a v< ry dee]( n.irrov, .sulcus, coiupl.-; ' . ,1 nnuii- 
pletely 2-celIed, cross-section obcordatel^- 2-lobcd; stipe ex( l ediii;^.- the ca!\ x teeth. —s, 
Nebraska and the Rocky Mts. 
36. A. RACEJIOSU8, Pur.sll. Aplin-srd-pllbescrnt, .ul;ihra!e ; , ,(];, \ ■.!,,.i,.^]y -il/hoiis .al ha-e. w hili^h- 
puherulent, the .setaceous teeth -.li-hlly .shorter than t))e 1 nl.e. e,|i).iljj,^r thesiijie; pod lance nlflon;.' 
triangular, not 2-celled, cro.s.s---. . tii.u somewhat efpuilly triradiate. Nelnaska to Idaho. 
$ 12. OClvJ".\TL Pod sessile, coriaceous, ohcompre».spd or ohconijin sNed-ti iaii;,'nhir. with the ini- 
pres>, d il. rsal suture more or less approaching thn ventral, hnt not 2 l elled. J.ow f.r prostrate jicr- 
euniaK nt with appressed hairs 01 : stipules fre. IVoni iln- pctioh . united : ihiwa rs 
spicate, middle-sized; calyx-tubi .unpanulate. 
36. A. ri,Avr.s, Xiitt. Diffuse, with a fine hoary pubescence ; stij-uh s sheathin^f tlie stem and base 
of the petiole, oblifjue ; leaflets linear, subacute : fbe.vcrs uv. Il.iv : . i ' Imh' . 
ovate, straight, both sutures impressed and ajiji: 
37. A. Hl'MiSTR.VTC.S, Gray. Strigose-hairy. -i, -n.jiah ; iu.> ioi,^- i<iu. umo. . -•.•p.ii-.- - aiceiy 
sheathing; leaflets lanceolate or linear-oblong, acute; flowers purple, spreading; calyx-teeth exceeding 
