PEA FAMILY 523 



calyx villous; tube 5 mm. long; teeth subulate, about 2.5 mm. long; corolla dark 

 blue, about 12 mm. long; pod ovoid, villous, about 1 cm. long, nearly 2-celled. 

 Banks and hills: n Sask. — Alta. — ^Yukon. Mont, — Boreal. Je-Jl. 



34. A. splendens (Dougl.) Greene. Leaflets very numerous, linear-lance- 

 olate, 1-2.5 cm. long, very acute, white, silky-villous; scape 2-3 dm. high; spike 

 dense or in age laxer, 4r-10 cm. long; bracts narrowly linear to subulate, silky- 

 villous, 1-2 cm. long; calyx densely white- villous; tube about 6 mm, long; teeth 

 about 5 mm. wide; corolla 12-15 mm. long, dark blue; legume densely long- 

 villous, 1 cm. long, ovoid, short-beaked, nearl}^ 2-celled. 0. splendens Dougl. 

 A. caudaius Greene. Plains and hills: Man. — Minn. — Mont. — ^B.C. Boreal — 

 Mont. Jl. 



38. GLYCYRRHIZA (Tourn.) L. LiQuomcE. 



Perennial herbs, with thick sweet roots and glandular-dotted foliage. Leaves 

 odd-pinnate. Flowers perfect, in spikes or heads. Cal^^x with the two upper 

 teeth somewhat shorter and partly united. Banner oblong or narrowly ovate, 

 clawed; keel acxite or obtuse. Stamens diadelphous, 9 and 1; anthers alternately 

 smaller and larger. Pod sessile, indehiscent, covered with prickles or in exotic 

 species with glands. 



1. G. lepidota Nutt. Tall leafy perennial, 3-10 dm. high; leaflets 11-19, 

 lanceolate or oblong, entire, 2-3.5 cm. long, mucronate-pointed, scaly when 

 young; spikes many-flowered; corolla yellowish white, 12-13 mm. long; pod 12- 

 15 mm. long, with hooked prickles. Copses and rich meadows: Ont. — N.Y.— 

 Ariz. — Calif. — Wash. ; Mex. Son. — Plain — Submont My-Au. 



39. HEDYSARUM (Tourn.) L. Hedysarum, 



Perennial herbs, rarely shrubby, with odd-pinnate leaves, with several leaf- 

 lets and no stipels. Flowers showy, in axillary, peduncled racemes, perfect. 

 Calyx Dracteolate, campanulate, nearly equally 5-toothed. Banner obovate or 

 orbicular, clawed; wings oblong, shorter than the other petals; keel obliquely 

 truncate, obtuse. Stamens diadelphous (9 and 1). Legume flat, divided trans- 

 versely into rounded or subrhombic indehiscent internodes. 



Calyx-teeth shorter than the tube; reticulations of the pods polygonal. 



CoroUa sulphur-yellow; fruit glabrous. 1. H. sulphurescens. 



Corolla purple, rose, or rarely white. 



Fruit glabrous, except as to a few hairs on the margins; internodes 6-8 mm. long. 



2. H. americanum. 



Fruit distinctly appressed-pubescent; internodes 8-15 mm. long. 



Corolla 12-15 mm. long; bracts linear-subulate, 5 mm. or more long. 

 Leaflets oblong, elliptic, or oval, less than 3 cm. long. 3. H. boreale. 

 Leaflets lanceolate, fully 3 cm. lon^. 4. //. lancifolium. 



CoroUa 15-20 mm. long; bracts lanceolate, 2-4 mm. long. 5. II. marginatum. 

 Calyx-teeth subulate, longer than the tube: reticulations of the pods transversely elon- 

 gate, usually reaching from the middle to the margins, without cross-veins. 



Flowers 15—20 mm. long. 



Calyx sparingly strlgose; loments with 4-7 internodes; nodes more than half as 



wide as the internodes, 6. H. Mackenzii. 



Calyx canescent; loments with 2-5 internodes; nodes less than half as broad as 

 the internodes. ' 7. H. titahense. 



Flowers 10-15 mm. long. 



Leaves glabrous above, at least in age. 



Leaflets eUiptic-oblong, not fleshy; flowers 12-15 mm. long, purple; bracts 

 lanceolate-subulate, 3-5 mm. long; internodes of the loments 3-5. 



8. H. pabulare. 

 Leaflets linear-oblong, somewhat fleshy; flowers about 10 mm. long, rose- 

 purple; bracts lanceolate, 1.5-2 mm. long; internodes of the fruit 1-3. 



9. H. carnosulum. 



Leaves canescent on both sides. 10. H. cinerascens . 



1. H. sulphurescens Rydb. Stem erect, 3-5 dm.' high, glabrous or spar- 

 ingly strlgose; leaflets 11-15, oblong or elliptic or oval, 1-4 cm. long, glabrous or 

 nearly so, shining; racemes lax; calyx-tube about 3 mm. long; teeth lanceolate, 

 1-2 mm. long; corolla about 15 mm. long; loment glabrous; internodes 2 or 3, 

 8-15 mm. long, 6-8 mm. wide, wing-margined; nodes 2.5~4^mm. wide. H. 

 flavescens Coult. & Fish. Open woods and copses: Alta. — Wyo. — Ida. — B.C. 

 Submont. — Mont. Je-Jl. 



