Baptisia. XLVIl. LEGUMINOSyE. 235 



31. LUPIN US. Tourn. 

 Lat. lupus, a wolf; because it overruns the field and devours ita fertility. (Doubtful.) 



Calyx deeply bilabiate, upper lip 2-cleft, lower entire or 3toothed ; 

 wings united towards the summit ; keel acuminate ; stamens mona- 

 delphous, the filamentous sheath entire; anthers alternately oblong 

 and globose ; legume coriaceous and torulose. — Herbs. Lvs. palmate- 

 ly 5 — 15 -foliate. 



1. L. PERENNis. Common Lnipbie. 



Rt. creeping, perennial ; Ifts. 7 — 9, oblanceolate, raucronate ; fls. alternate ; 

 col. without appendages, upper lip emarginate, lower entire.— Tj: Grows wild 

 abundantly in sandy woods and hills, Lake Champlain to Wis. Laphavi ! S. to Ga. 

 It is a beautiful plant, much cultivated in gardens. It is often called sun-dial, 

 from the circumstance of its leaves turning to face the sun from morning till 

 night. Stem erect, soft, smoothish, a foot high. Leaves soft, downy, on long 

 stalks, Lfts. 1§ — 2' by 4 — 6", lanceolate, broadest above the middle. Flowers 

 blue, varying to white, in a terminal spike or raceme. May, June. 



2. L. POLYPHYLLUs. Liudl. Many-leaved Lupine. — Tall ; Z/ifs. 11 — 15, lanceo- 

 late, sericeous beneath ; fis. alternate, in a very long raceme ; pedicels longer 

 than the lanceolate, deciduous bracts ; cal. ebracteolate, both lips subentire ; leg. 

 densely hairy. — % A splendid ornamenc of the garden, from Oregon. Stem 

 3 — 5f high. ' Racemes a loot or more long. Flowers scattered (subverticillate 

 in /?. grand if oil us, Lindl.), white, purple or yellow in diiferent varieties; -f 



3. L. NooTKATENsis. Donn. Nootka Somid Lnipine. — St. villous, with long, 

 spreading hairs ; lfts. oblong-lanceolate, mucronate, attenuate at base, sericeous 

 beneath ; cal. very hairy, both lips nearly entire ; bracts linear, hairy, longer 

 than the calyx. — A handsome species, from the N. W. Coast, 2 — 3f high, in 

 gardens. Leaflets about 7. Flowers purple. ■\ 



4. L. ARBOREus. Tree L/iipine. — Fruticose ; fs. in whorls ; cal. appendaged, 

 lips acute, entire. — A handsome exotic shrub, 6f high, with large yellow flowers, -f 



Ois.— Several annual species are occasionally sown in gardens, eis L. albu-s, with white flowers ; L. pi- 

 losus, with rose-colored flowera ; L. luteus, with yellow flowers, and L. hirsiUxis, with blue flowers, and 

 an appendaged caly.x. 



32. LABURNUM. Benth. 

 Calyx campanulate, bilabiate; upper lip 2, lower 3-toothed ; vexil- 

 lum ovate, erect, as long as the straight wings ; filaments diadelplious 

 (9 & 1) ; legume continuous, tapering to the base, several-seeded. — Ori- 

 ental thornless shrvbs or trees. Lvs. palmatel// trifoliate. Fls. mostly yellow. 



1. L. vuLGARE. (Cytisus Laburnum. Linn.) Golden Chain. — Arborescent; 

 Ws. oblong-ovate, acute at base, acuminate; rac. simple, elongated, pendulous; 

 leg. hirsute. — A small, ornamental tree, 15f high, from Switzerland. Flowers 

 numerous, large, in racemes If long, f 



2. L. ALPlNUM. (Cytisus alpinus. Linn.) Scotch Labnrnu7n. — Arborescent; 

 Ifls. oblong-ovate, rounded at base ; rac. long, simple, pendulous ; leg. glabrous. 

 — A beautiful tree, 30f high, native of various alpine regions of Europe. Like 

 the former, it develops numerous, brilliant yellow flowers, in long, drooping clus- 

 ters. — There are varieties with ochroleucous, white, and even purple flowers, f 



33. BAPTISIA. Vent. 



Crr. PatTTCJ, to dye ; a use to which some species are applied. 



Calyx 4 — 5-cleft lialf-way, persistent ; petals of about equal length, 

 somewhat united ; vexillum orbicuhir, emarginate ; stamens 10, dis- 

 tinct, deciduous : legume inflated, stipitatc, many (or by abortion 

 fuw)-seeded. — % Lvs. yalinatrly ^-foliate, or simple. 



1. B. TiNCTORiA. R. Br. (Sophora. Linn. Podalyria. Lam.) Wild Indigo. 



Glabrous, branching; lis. palmalely li-foliate, subsessile; lfts. roundish- 



obovate, acute at base, verv obtuse at apex; stip. sptaccous, caducous; mr. 



