DAPTI&IA. XLVI1. LEGUMINOSjE. 235 



31. LUPlNUS. Tourn. 



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



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

 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 \5-foliate.. 



1. L. PERENNIS. Common Lupine. 



Rl. creeping, perennial ; If Is. 7 9, oblanceolate, mucronate ; /Is. alternate ; 

 cal. without appendages, upper lip eraarginate, lower entire. '7|. Grows wild 

 abundantly in sandy woocU and hills, Lake Champlain to Wis. Lapham ! 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. Lmdl. Many-leaved Lupine. Tall ; Ifts. 1 1 15, lanceo- 

 late, sericeous beneath;^, 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 foot or more long. Flowers scattered (subverticillate 

 in'/?, grandifolius, Lindl.), white, purple or yellow in different varieties, f 



3. L. NOOTKATENSIS. Donn. Nootka Sound Lupine, St. villous, with long, 

 spreading hairs; Ifts. 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 31' high, in 

 gardens. Leaflets about 7. Flowers purple, f 



4. L. ARBOREUS. Tree Lupine. Fruticose ; fis. in whorls'; cal. appendaged, 

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



Obs Several annual species are occasionally sown in gardens, as L. atbu-s, with white flowers ; L. pi- 

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

 an appendaged calyx. 



32. LABURNUM. Benth. 



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

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

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

 ental thornless shrubs or trees. Lvs. palmately trifoliate. FLs. mostly yellow. 



1. L. VULGARE. (Cytisus Laburnum. ' Linn.} Golden Chain. Arborescent; 

 If's. oblong-ovate, acute at base, acuminate ; roc. 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 Laburnum. Arborescent; 

 If Is. oblong-ovate, rounded at base ; roc. long, simple, pendulous ; leg. glabrous. 

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

 he 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. 



Gr. /?<rrrw, to dye; a use to which some species are applied. 



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

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

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

 few)-seeded. % Lvs. palmately 3-foliate, or simple. 



1. B. TINCTORIA. R. Br. (Sophora. Linn. Podalyria. Lam.} Wild Indigo. 



Glabrous, branching ; Ivs. palmately 3-foliate, subsessile ; Ifts. roundish- 



obovate, acute at base, very obtuse at apex ; stip. setaceous, caducous ; roc 



