PULSE FAMILY. 103 



12. AMORPHA, FALSE INDIGO. (Name, amorplions, wanting the 

 ordinary form, from the absence of four of the petals.) There are usually 

 little stipels to the leaflets. Fl. summer. 



A. fruticosa, COMMON A. River-banks from Penn. S. & AT. ; a tall or 

 middle-sized shrub, smoothish, with petiolcd leaves of 15 25 oval or oblong leaf- 

 lets, violet or purple flowers in early summer, and mostly 2-seeded pods. 



A. herbacea (but it is not an herb) of low pine-barrens S., 2 -4 high, 

 often downy, has the leaflets more rigid, dotted, and crowded, villous calyx- 

 teeth, later blue or white flowers, and 1-seeded pods. 



A. can^SCens, called LEAD-PLANT ; in prairies and on rocky banks W. 

 and S. W. ; l-3 high, hoary Avith soft down, Avith sessile leaves of 29 -51 

 elliptical leaflets, smoothish above Avhen old, violet-purple flowers in late summer, 

 and 1-seeded pods. 



13. PSOHALE A. ( Greek Avord for scurfy, from the roughish dots or glands 

 on the leaves, calyx, &c.) Wild S. & W. : fl. early summer, violet, bluish, 

 or almost Avhite. " 2/ 



# Leaves pinnately 3-folioIate, i. fe. the side-leaflets a little beloiv the apex of the 

 common petiole, or the uppermost of a single leaflet. 



P. On6brychis. River-banks, Ohio to Illinois and S. : 3 - 5 high, 

 nearly smooth, Avith lance-ovate taper-pointed leaflets 3' long, small floAvers in 

 short-peduncled racemes 3' - 6' long ; pods rough and wrinkled. 



P. melilotqides. Dry places, W. & S. : l-2 high, somewhat pubes- 

 cent, slender, Avith lanceolate or lance-oblong leaflets, oblong spikes on long 

 peduncles, and strongly Avrinkled pods. 



* * Leaves digitate, of 3 - 7 leaflets. 



P. Lupinellus. Dry pine-barrens S. : smooth and slender, with 5-7 very 

 narroAV or thread-shaped leaflets, small flowers in loose racemes, and obliquely 

 Avrinkled pods. 



P. floribunda. Prairies from Illinois S. W. : bushy-branched and slen- 

 der, 2 - 4 high, somcAvhat hoary when young, Avith 3-5 linear or obovate- 

 ob!ong much dotted leaflets, small flowers in short panicled racemes, and glan- 

 dular-roughened pods. 



P. canescens. Dry barrens S. E. Bushy-branched, 2 high, hoary- 

 pubescent, Avith 3 (or upper leaves of single) obovate leaflets, loose racemes of 

 teAV floAvers, and a smooth pod. 



P. argoph^lla. Prairies N. W., mostly across the Mississippi, widely 

 branched, 1 - 3 high, silvery Avhite all over with silky hairs, with 3-5 broad- 

 lanceolate leaflets and spikes of rather feAV largish flowers. 



P. escul^nta, POMME BLANCHE of the N. W. Voyageurs ; the turnip- 

 shaped or tuberous mealy root furnishing a desirable food to the Indians N. W. : 

 IOAV and stout, 5' -15' high, roughish hairy, Avith 5 lance-oblong or obovate 

 leaflets, a dense oblong spike of pretty large (^' long) floAvers, and a hairy 

 jointed pod. 



.4. ONOBRYCHIS, SAINFOIN. (Name from Greek, means Asses- 

 food.) 



O. satiya, COMMON S. Sparingly cult, from Europe as a fodder plant, 

 but not quite hardy N. ; herb l-2 high, with numerous oblong small leaf- 

 lets, broAvn and thin pointed stipules, and spikes of light pink floAvers on long 

 axillary peduncles, in summer, the little semicircular pod bordered with short 

 prickles or teeth. 2/ 



15. STYLOS ANTHES, PENCIL-FLOWER. (Name from Greek 

 Avords for column and flower, the calyx being raised on its stalk-like base. 

 The application of the popular name is not obvious.) 



S. elatior, of pine-barrens from NCAV Jersey and Illinois S., is an incon- 

 spicuous IOAV herb, in tufts ; the Aviry stems downy on one side ; leaflets lan- 

 ceolate, Avith strong straight veins ; flowers orange-yelloAV, small, in little 

 clusters or heads, in late summer. ^ 



