458 FABACEAE 



Leaflets glabrous above, at least in age; flowers large. 



Bracts liaear-subulate, long-attenuate, almost setaceous, much exceeding- 



the flower-buds. IX. CYTISOIDE3. 



Bracts lanceolate, scarcely exceeding the flower-buds. 



Stem tall, leafy throughout; leaflets narrowly oblanceolate, acute. 



X. POLYPHYLLI. 



Stem low, stout, leafy mostly towards the base; leaflets broadly ob- 

 lanceolate or spatulate. mucronate. XI, Amnophili. 

 Leaflets permanently pubescent above. 



Pubescence of the stem of one kind, usually short, except in L. comatus. 



XI I. Cyaxei. 

 Pubescence of the stem of two kinds, viz.. a short and dense under-pubes- 

 ^^ cence and scattered long silky hairs. XIII. Leucophylli. 



Plant low, less than 8 dm. high, densely cespitose. 

 Inflorescence much exceeding the leaves. 



Leaves mostly basal; petioles many times longer than the leaflets. 



XIV. Lepidi. 

 Leaves mostly cauline; petioles of the cauhne leaves only slightly, if at all, 



exceeding the leaflets in length. 

 Leaves densely canescent. XV. Caxdtcanxes. 



Leaves green. XVI. Monticolae. 



Inflorescence not exceeding the leaves. - XVII. Caespitosi. 



Aimuals. 



Cotyledons after germination petioled; pods 3-4-seeded. XVIII. CoNClNNi. 



cotyledons after germination sessile, persistent, clasping the stem; pod 2-seeded. 



XIX. PUSILLI. 

 « . I, PL.\TTEXSE3. 



One species. 1. L. plattensis. 



IT. PAR\1FIX)Rr. 



Calyx spurred or saccate at the base, appressed-silky; banner pubescent on the back; 



Leaflets^ oblanceolate, flat; racemes comparatively dense; flowers numerous, sub- 

 T « ^^^i^illate. • 2. L, pseudoparviflorus. 



i-.eafiets Imear. conduphcate; flowers scattered in a lax raceme. 



ri„K^ ^ -u J. -x ^ S. L. stenophyllus. 



i^aij^ somewhat gibbous at the base, but not produced backwards into a spur or sack, 

 inflorescence pedicels, and calyces finely white-silky with strictly appressed hairs. 



F owers 15 mm. long; corolla white. 4. L. leucanthus. 



blowers 12 mm. long or less; corolla purple or blue. 



Banner somewhat silks'- on the back: lower lip of the calyx twice as long as 



the upper; keel ciliate on the margins. 5. L. Scheuberae. 



Banner glabrous; keel not ciliate. 



Lower lip of the calyx only slightly longer than the upper; flowers about 



10 mm. long; plant green. 6. L. laxispicus, 



i^ower lip of the calyx much longer than the upper; corolla about 8 mm. 

 T ff long; plant silvery. 7 l tenellus 



innorescence. pedicels, and calyces more loosely pubescent ; hairs at "least in age spread- 

 Flowers middle-sized, 8-12 mm. long. 



Banner pubescent on the back ; plant silvery. 8. L. argenteus. 



Banner glabrous; plant green. 



Calyx strongly gibbous at the base; keel glabrous; stem purplish. 



Calyx not strongly gibbous; stem green. 



Banner blue or purplish, not dark-spotted. 



L.ower hp of the calyx about twice as long as the upper; leaves 



broadly oblanceolate. 10. L. spathulatus. 



iiower hp of the calyx only slightly longer than the upper; leaflets 



T^:,r,T,o?^^^rl^^ Oblanceolate. 11. L. alpestris. 



Flowers ab^ours^mWong.' ^^'^ ^ ^^'^ ^^^'- '^- ^' rnaculatus. 

 Leaflets narrowly oblanceolate. 



Lins of Iht nl\^'^ ^utely 2- and 3-toothed. 13. L. floribundus. 



I^e^nJf^ hrn^^}l^^^^^^ -^- 14. L. leptostachyus. 



,i.eaflets broadly oblanceolate. 15. ^^ parviftorus. 



one species ^^^- Calcarati 



Ahgophylli 



16. L. calcaratus 



Tetag fnd c\1?/Tobern\™^™^'''" *!?^,? ^^^ ^PP^^: leaflets linear-oblanceolate. , 



narrowljMaSlaTe Xnt Jr^i?^^^^ ■''L^^ *^^^ "^ lo^K as broad; lower Up of calyx 

 PetalTand f-al v^MnK^ kV^oh greener ; inflorescence lax. 17. L. lariflorus. 



whiLTi^oSslSnce &e' '^''"' ^^ °' '""^ ^^^^'^ b'-^^^ily lanceolate/ plant silvery 



""Il^^'^ts^U^lutlu/errwK^^^^^ 



curved ='^^^«i^> wmte on both sides, usually conduphcate; their backs usually 



Leaflets grayish canescent, greener above, flat. H', t ZffiT'' 



