Part 3, 1923] 



FABACEAE: GALEGEAE 



Flowers strictly axillary. 



Pod glabrous or nearly so, usually many-seeded (few-seeded in 

 Minutifoliae and Trifoliatae) . 

 Twigs and leaves glabrous or strigose. 



Leaflets oblong to broadly oval, obtuse, rounded or retuse 

 at the apex. 

 Branches and leaflets glabrous. 

 Branches or leaflets or both more or less strigose. 

 Leaflets narrowly linear-lanceolate or linear, revolute. 

 Twigs densely pubescent with spreading hairs, either subvelu- 

 utinous or hirsute. 

 Branches and leaflets hirsute. 

 Leaflets about 1 cm. long. 

 Leaflets 2-3 cm. long. 

 Branches subvelutinous, short-hairy. 



Leaflets ovate, acute, glabrous; branches often with 



cork-ridges. 

 Leaflets oblong to oval, rounded or retuse at the apex; 

 branches not corky. 

 Leaflets 3, suborbieular or round-oval, glabrous. 

 Leaflets several to many, more than 3. 



Leaflets green on both sides, merely strigose. 

 Leaflets either canescent on both sides or green 

 and more or less silky beneath. 

 Leaflets many, not velutinous on both sides, 

 mostly oblong and rarely more than 3 cm. 

 long. 

 Leaflets fewer, velutinous on both sides, oval, 

 3-5 cm. long, strongly reticulate. 

 Pod hirsute, few-seeded. 



I. Bilabiatab 

 Branches and leaves glabrous; stipules minute, deciduous. 

 Branches and leaves short-pubescent; stipules conspicuous. 



IT". Inconstantes 

 One species. 



III. PODAUYRIOIDES 



Stipules lanceolate, deciduous. 



Leaflets and calyx minutely strigillose; keel much longer than the banner. 

 Leaflets and calyx glabrous; keel not longer than the banner. 

 Stipules ovate, semicordate at the base, persistent. 



Branchlets, stipules, and leaflets glabrous or the latter sparingly ap- 



pressed -silky when young. 

 Branchlets, stipules, and leaflets more or less pilose or hirsute with 

 spreading hairs. 

 Leaflets and stipules thin, not strongly reticulate; flowers appearing 



with the leaves. 

 Leaflets and stipules thick, strongly reticulate; flowers appearing 

 before the leaves. 



IV. FoLIOLOSAE 



Leaflets numerous, 1 cm. long or less, firm, strongly reticulate. 

 Leaflets usually more than 1 cm. long, thin, faintly veined. 



Leaflets rounded at each end, merely mucronate; bractlets conspicuous, 

 oval. 



Leaflets cuspidate; bractlets subulate or obsolete. 



V. Revolutae 

 Leaflets subcoriaceous. 



Branches short-velutinous. 



Calyx brown-velutinous; stipules and bractlets inconspicuous and 



deciduous. 

 Calyx glabrous; stipules large, persistent; bractlets rudimentary. 

 Branches strigose. 



Leaflets oval, 3-5 cm. long, strongly reticulate; bractlets ovate- 

 cordate, 15 mm. long. 

 Leaflets oblong, 1-2 cm. long; bractlets lanceolate to oblanceolate or 

 elliptic, 4-6 mm. long. 

 Leaflets 17-25, strongly reticulate, not revolute; calyx glabrous. 

 Leaflets 9-15, not strongly reticulate, with revolute margins; calyx 

 silky-strigose. 

 Leaflets thin. 



Leaflets 5-13. strigillose or glahrate. 

 Leaflets oval or elliptic, acutish. 

 . Leaflets 3-5 cm. long; stipules foliaceous. 



IV. Foliolosab. 

 V. Revolutae. 

 VI. MlNUTIFOLIAB. 



VII. Parvifoliab. 

 VIII. HirsuTae. 



IX. SuBEREAE. 



X. Trifoliatae. 

 V. Revolutae. 



XI. Sericeae. 



XII. Parryanae. 

 XIII. Oligospermae. 



1. B. bilabiala. 

 12. B. lunata. 



2. B. inconstant. 



3. B. glahrata. 



4. B. paniculata. 



5. B. podalyrioides . 



6. B. Palmeri. 



7. B. nudijtora. 



8. B. foliolnsa. 



9. B. diffusa. 

 10. B. pauciflora. 



11. B. Goldmani 



12. B. lunala. 



13. B. bracteolala. 



14. B. discolor. 



15. B. revoluta. 



16. B. alamosana. 



