OF ARTS AND SCIENCES: MAY 13, 1873. 



519 



Pubescence dense; lfts. wedge-obovate, obtuse, silky 

 both sides ; fls. not yellow ; upper lip bifid ; ovules 

 6-8 



Pubescence short and mostly tomentose ; lfts. oblan- 

 ceolate, not smoother above; bracts exceeding the 

 calyx ; fls. blue ; upper lip nearly 2-parted ; ovules 



8-9 



t t Stems wholly herbaceous, more or less elongated, in (a) 

 mostly succulent and fistulous. 



a. Lfts. smooth above, oblanceolate, 1^' long or more, 



except in L. littoralis ; bracts deciduous ; calyx-lips 

 slightly toothed ; ovules 8 or more. 



Subdecumbent, densely villous ; stipules long-seta- 

 ceous ; petioles short ; lfts. 6 - 8 ; bracts short ; 

 ovules 9-12 



Erect, sparingly villous ; stipules broad ; petioles 

 elongated; lfts. 10- 16 ; bracts short; calyx-lips 

 entire ; ovules 9 . . . . • 



Ascending, villous ; leaves distant ; petioles elon- 

 gated ; lfts. 8 - 12 ; bracts exceeding the calyx ; 

 ovules 7-8 



Erect, nearly glabrous, the short pubescence mostly 

 appressed ; stipules narrow ; petioles short ; bracts 

 exceeding the calyx ; ovules 8 - 10 



Calyx subvillous ; bracts more hairy, subpersistent ; 

 stipules broader ; lower petioles elongated ; pedi- 

 cels short 



Subdecumbent, slender, leafy ; petioles short ; lfts. 

 5-8, J-l' long; bracts exceeding the calyx; 

 keel ciliate ; ovules 10 -12 . . ... 



b. Leaves distant, lower long-petioled ; lfts. smooth above ; 



fls. large, not yellow ; ovules 6-7, rarely fewer. 

 . Pubescence mostly minute, appressed ; stipules de- 

 ciduous ; lfts. 9 ; upper calyx-lip shortly toothed ; 



keel ciliate 



Usually villous, low and siender; stipules long, 



persistent ; upper lip bifid ; ovules 4-6 

 Villous or subglabrous ; stipules large, acuminate ; 

 lfts. 7 ; keel naked 



c. Leafy and branching ; petioles short ; bracts deciduous, 



shorter than the calyx, except in L. Sabiriii and bar- 

 biger ; fls. large, yellow in L. Sabinii ; ovules 6-7, 

 rarely 8. 



Lfts. silky both sides ; fls. very large, yellow ; ban- 

 ner naked 



Lfts. pubescent both sides; calyx-lips subequal, the 



4. L. albijrons. 



5. L. Douglasii. 



6. L. Noothatensis. 



7. L. polyphyllus. 



8. L. Wyethii. 



9. L. rivularis. 



10. L. Burkei. 

 11. L. littoralis. 



12. L. perennis. 



13. L. Nutlallii. 

 14. L. arcticus. 



15. L. Sabinii. 



