518 FAB ACEAE 



Stipules adnate to the petioles only sUghtly at the base; pods pendent, 1-celled. many 



times exceeding the calyx; plant often caulescent. I. Deflexi. 



Stipules decidedly adnate to the petioles; pods not pendent; plant acaulescent. 

 Leaves strictly pinnate; leaflets opposite. 



Fruiting calyx inflated, enclosing the fruit; plants densely cespitose. less than 



1.5 dm. high. "^ jl n^ni 



Fraiting cnlyx not inflated, much exceeded by the pod. 

 Inflorescence 1-3-flowered; plants dwarf, pulvmate. 



Pods inflated, 1-ceIled, ovoid. Ill Infl.\ti. 



Pods not inflated, oblong, almost 2-celled. iv! Parryani. 



inflor^cence many-flowered; plants mostly over 1.5 dm. high, not pulvinate; 

 T^afl.^. pod oblong, not inflated. V. Campestres. 



Leaflets verticillate. yi^ Verticillares. 



I. Deflexi. 



Plant more or less caulescent; racemes at least in fruit elongate; pods 1.5-l.S cm. long. 



Plant subacaulescent; racemes short and head-like; pods about 1 cm. long 



2. A. foliolosus. 

 II. Nani. 



^^'V'p^i^,,^?^^,^?^^ exceeding the leaves. 1-3-flowered; bracts broadly ovate. 



i>c.Jfr.^ ^'^^^' ^^^^'' corolla about 15 mm. long. 4 A. minor. 



Peduncl^^deci^iedly exceeding the leaves, many-flowered; bracts lanceolate or ovate- 



Pubesc^ce^of the peduncles appressed or merely ascending; pods included in the 



Peduncles erect, strict; spike oblong, ovei 2 cm. long. 



?^?.l?}u^ ^^^^^7 T w^J^is^. nioi^e than 2 cm. long. 5. A, collinus. 



Pahf^^^nr^nf^^^'^'^^^' curved; spike subcapitate. 7. A, nanus. 



i-uDescence of the peduncles loosely spreading; pods usuaUy somewhat exserted. 



,,^ , 8. A, Lagopus, 



Leaflets 11-23. ' "^- ^^^^^^1. 



f f?fl^5^ 5P^^^^^^5^ ^PP^ssed-hirsute. g a vodocarvus 



Leaflets densely canescent. in A HnlUI 



Leaflets 5-11, densely canescent. }?• ^- ^^Anh 



One species. ^^' P-^RYani. 



Plant not viscid. ^- Campestres. 



Corolla purple, rarely white. 

 Calyx with spreading hairs. 



^^^^f.^t^i^^'^^''"^^ ^^""^^^ usually light purple. 

 Plant loosely pubescent; peduncles with Ion 



Plant silkv-canftsf^ftnt, • rvoHnnol^. T^'^v. « 



11. A. oreophilus 



12. A. Parryi. 



spreading hairs. 



8. A. Lagopus 



curv 



Plant taller, over 1 dm, high; spike elongate. 



r^K^^ cfe vf"^^' = ^^^^ '^'■<^^^- 14. A. Besseyi. 



Pal wW=>Vvl^*^^'^^\''y^'^i"8s narrow. 21. A. alberlinus. 



calyx black-hairy; corolla dark, bluish purple. 



P ant ^'iw® °':,f*yish viUpus. 15. a. atropurpureus 



lyx with apS^erh^ip^P^^^^^ ^^- «'^^- 16- A. melanodontus. 



^*'^tons*^'"' ^ """• ^^''^' ^lioi^stipitate and long-acuminate; corolla over 2 

 Legjmie 2 cm. long or less, sessile '^- ^- BOfelovii. 



Legum^iUous. ahnost 2-ceUed; caudices densely white-hairy; corolla 12 



Legum^^ appressed-silky or short-hairy ; caudices not con^kuousP/ white- 



^^^rnl'if^ o^ ?-<^elled ; leaves white-silky. 



corolla 12-1 o mm. long; wings slightly emarginate. 



Corolla nhr,^,+ o 1 . 13- ^- monticola. 



i-oroua about 2 cm. long; wmgs broadly and deeply emarginate. 



Legumes only half 2-celled ^^' ^' *'"'**^^"*" 



Leaves white-silky benekth; corolla 15 mm. long; pod ascending. 



Leaves green or only slightly silky ^^^ ^^ «'''*'-'^"""- 



i^egumes spreading; leaves elliptic or oblong; corolla 15 mm. 



long. 22 ^ disDQf 



i.egum^ erect or strongly ascending; leaflets lanceolate or Unear- 



lanceolate, very acute 



infn n^r^^^= P^ 1^ ^^- long, abruptly contracted 

 mto a short spreadmg beak; corofla 15 mm. long. 



^"^It%ii^'rP?!'.^^o^^' 'on^' lonf-kclinSSitf nearly 

 straight, corolla 18-20 mm. long. 24. A. Lambertii. 



