522 . FABACEAE 



25. A. alpicola Rydb. Depressed acaulescent perennial; leaflets 9-13, 

 Oblong or elliptic, obtuse or acutish, 5-8 mm. long, white silky-strigose; scapes 

 ^-b cm long, strigose; spike short, 3-8-flowered, subcapitate: calyx usually 

 very dark from the intermixed black hairs; tube 5-6 mm. long; teeth subulate, 

 A mm. long; corolla ochroleucous, about 15 mm. long; wings broad and broadly 

 emargmate ; pod about 15 mm. long, subcoriaceous, ovoid, short-beaked, nearly 

 2-ceUed. High mountains: Alta.— Mont.— B.C. Mont.—Alj>. Je-Au. 



26 A. villosus Rydb. Leaflets 25-31, rather crowded, 1-1.5 cm. long, 

 lanceolate, very acute, densely but somewhat loosely silky; scape about 1.5 dm. 

 long, loosely silky; spike dense, 4-5 cm. long; calvx white silky-villous; tube 6 

 mm. long; teeth very short, about 2 mm. long; coroUa ochroleucous, without any 

 purple, 12-15 mm. long; pod thin, almost perfectlv 2-ceUed, white-silky, about 

 i^& cm. long. A. mvenuslus Greene. HUls: Mont.— S.D. Submont.—MonL 



.^}'^' ^A ^!^^^\^^o ^- ^^^^- Leaves erect; leaflets 21-31, oblong-lanceolate, 



P^^ l!fn^ 1^' i~^- V"'-.,^^^^' ^'^*«5 ^''^Pes 2-4 dm. high; spike elongate, 5-10 

 cm long, calyx densely silky, sometimes somewhat blackish: tube 6-7 mm. long: 



.3-^ 



Wings 



ous, nearly 2-celled. 4. alhertinus Greene, in part. Open woodlands: Man.- 

 fe.U.— Ida.— Alta. Svhmont.—Mont. Je-Jl. 



4-S^^"^^' ^.P^<=^t^s (Hook.) Rydb. Leaflets oval to oblong, 8-25 mm. long, 

 m? W-T*?^' ^^,V^"y 9btuse, silky-strigose; scape 1-1.5 dm long; spike 4-10 

 S"^ tiU /^ silky-str.gose, often with intermixed black hairs; tube 6-7 mm. 



often Shinnrhw' ? ^°'- S"S: '^"i:^^^ 18-20 ^m. long; pod short-hairy, 

 Honk A ^^"n ''''"■^' ^^'•'^S' ^^o^t 2 cm. long. O camveslris spicata 



SD-^\Vn I'r' S.T''^- nf Macounn Greene. Plains and liiUs: Sask.- 



C5.U.— Wyo.— Alta. Plam—Mont. My-Jl. 



1 5-?5 fm *W°'""^ h ^.'^•'- ^^^^^*^ 13-21, oblong, elliptic, or lanceolate, 

 cm lon^ r«l^^'«fL''''^'''li!*"!°'^'-''^P« 1-^3 dm. lon^; spike elongate, 5-10 

 S'ccokf; f^jf^' ^''^^ Intermixed black hairs; tube 7-8 mm. long; teeth 

 S)d denspiv ^^- V Tf"^ ^i-^ «^- lo^g; keel with a deep purple blotch; 

 about half 2 ^P^fef' ™]' ''^^°^^' ^^«^* ^ cm. long, rather abruptly acuminate, 

 K-S^a^^^^^^^ ^- -i--^- G--. Plains: 



or rlrelv'orip'^^.n^ ^^""V^ ^I'^?"- ^^^^^^^^ ^1-57, oblong-lanceolate, acute 

 vmoS sDuTe ? ?fp^ rounded at the apex; scape 5-15 cm. long, erect, hirsute- 

 3 mm lonl nt^li -Tf' ^^'''? ^'"'^^^' t^b« ^bout 5 mm. long teeth subulate, 

 12 15 mm ^In^r^ ""1° ^*' 't'^^^' ^'^^''' ^^out 12 mm. long; pod oblong, ovoid, 

 taiii Mnn^^'w '''''^'fe pubescent; partition narrow. 0. viscida x\utt. Moun- 

 tains. Mont.— Wyo.— Nev. Mont. Jl-Au. 



31. A. viscidulus Rydb. Leaflets i/-. 



fl!^^^ oh ^^^\^?.^? villous ;^ scape 0.5-2 dm 



calyx 



5-10 



about 5 mm on J^^t' ?K^ ^^ ^""''y' ^^^^^ ^"d more or less blackish ; tube 

 Se Sv?ilL,S l^^^l^l^te- 2.5 mm. long, glandular; corolla dark bluish 

 n 5 cm lonf Ct kTv''^^* ^^ J^™' l^^^' P^^ membranous, oblong-ovate, 

 Alta'-fwyal'ut&S'^^)^' f^«^* half 2-celled. Hills akd mountains' 



elHptk to la?ce!j,hi?n^''" /^^^\) ^^««^^- ^^^aflets numerous, verticiUate, 



dm Wh vUW .n^v;T*'' °'.^K^"^' S-20 mm. long, densely silky; scape 1-2 

 um. mgn, \iuous, spike dense. 5-10 f^m Ur.^- k....„*„ i:^ ■'i„_„„„i„*„ ^ff^r^ 



calyx densely viUous; tube 5 mm 

 10-12 mm. long; legum 



ticallv 2-ceUpd n ^Vj.^f r>- \ ^J ^^'isely villous, 12-15 mm. long, pri 

 YukSi iSonf-lfi^'^^le^ru"^^^^ Hook. Mountains: Sask.-Colo. 



•iT^.^' ,4- ffalioides Greene. Leaf 



-to lainer sparingly silky, numerous 



5—15 mm. Irmty cn<i-na alr^r^Ac^Y' 9_5l Hr 



verti- 



uous, spike 5-10 cm. long, rather lax; bracts Aarrowly linear or subulate 



