Part 6, 1929] 



FABACEAE: GALEGEAE 



365 



long; 



1 . Glauriuscula 

 Leaves loosely and densely villous on both sides. 



Body of the pod obliquely oblanceolate, the stipe exceeding the calyx; 

 racemes in anthesis dense, shorter than the peduncle; corolla white or 

 ochroleucous, only the keel purplish. 

 Body of the pod elliptic, the stipe about equaling the calyx; racemes lax, 

 about as long as the peduncle; corolla greenisji- white, tinged with 

 purple. 

 Leaves strigose or glabrate or with scattered hairs. 

 Leaflets elliptic or lance-elliptic. 



Leaves glabrous or with a few scattered hairs; corolla with purple- 

 tipped keel. 

 Leaves rather densely strigose beneath, glabrous above; corolla purple. 

 Leaflets linear or lance-linear. 

 Leaves glabrous or nearly so. 

 Leaves rather densely strigose, at least beneath. 

 Pod glabrous. 

 Pod strigose. 



2. ROBBINSIANA 



Corolla white; body of the pod abruptly contracted at each end, minutely and 



sparingly black -hairy. 

 Corolla purplish; pod gradually tapering at each end, or at least at the base; 

 pod densely hairy. 

 Leaflets glabrous or nearly so on both sides. 

 Leaflets distinctly strigose or pilose beneath. 



Corolla about 1 cm. long; leaflets strigose or strigulose beneath. 

 Stipe decidedly longer than the calyx-tube. 

 Stipe about as long as the calyx-tube or slightly shorter. 

 Calyx and pod black-hairy; calyx-teeth about 1 mm. 



leaflets glabrous above, sparingly strigose beneath. 

 Calyx and pod with white hairs; calyx-teeth 1.5-2 mm. long; 

 leaflets sparingly pubescent above, densely so beneath. 

 Corolla about 12-15 mm. long. 



Stipe slightly if at all exceeding the calyx-tube; leaves canescent- 



pilose beneath, at least when young. 

 Stipe equaling or exceeding the calyx-teeth; leaves sparingly pilose 

 beneath. 



3. Oroboidea 

 Pod hairy; leaflets not retuse. 



Leaflets thin, oblong, to oval; plant erect; raceme many-flowered. 

 Pod about 1.5 cm. long, gradually acute. 

 Pod about 12 mm. long or less, rather abruptly acute. 



Pod 6-7 mm. long; racemes short and dense even in fruit. 

 Pod 10-12 mm. long; racemes lax in fruit. 



Leaflets elliptic or oblong, hairy at least above. 

 Leaflets rounded-oval to orbicular, glabrous. 

 Leaflets linear; plant decumbent; raceme few-flowered. 

 Pod glabrous, reticulate; leaflets thick, retuse. 



4. Alpina 

 Pod densely long-pubescent, straight or nearly so; calyx densely black -hairy. 

 Pod sparingly short-strigulose, more or less arcuate, i.e. even the upper suture 

 curved upwards; calyx-tube nearly glabrous. 



5. Williamsiana 

 One species. 



6. Strigulosa 

 Pod glabrous. 



Calyx-lobes deltoid, one fourth as long as the tube; corolla usually tinged 



with purple. 

 Calyx-lobes subulate, half as long as the tube or longer. 



Corolla bluish-purple, strongly striate; bracts ovate or lanceolate. 

 Corolla white or tinged with purple; bracts subulate. 

 Body of the pod 3-4 cm. long. 



Leaflets oblong; stipe of the pod longer than the calyx-tube. 

 Calyx short-hairy, its teeth shorter than the tube. 

 Calyx long-hairy, its teeth fully as long as the tube. 

 Leaflets obovate, retuse; stipe of the pod shorter than the 

 calyx-tube. 

 Body of the pod 1-2 cm. long; leaflets elliptic. 



Stipe of the pod longer than the calyx-tube; calyx-teeth nearly 



as long as the tube; corolla 10 mm. long. 

 Stipe shorter than the calyx-tube. 



Calyx not densely black-hairy, the teeth less than half as 

 long as the tube; raceme lax, few-flowered; corolla 7 mm. 

 long. 

 Calyx densely black-hairy, the teeth three fifths as long as 

 the tube; raceme dense; corolla 10 mm. long. 



1 . A, ahorii±in 



2. A. Cotton i. 



3. .4. Forivoodu. 



4. A. wallowense 



5. A. glabriusculum. 



(■>. A. lineare. 

 7. A. Herriotii. 



8. A. Robbinsii. 



9. .4 . Jesupi. 



10. .4. Blakei. 



11. j4. Macounii. 



12. .4. Fernahii. 



13. A. Harringtonii. 



14. .4. Collieri. 



15. .4. occidentale. 



18. .4. atratum. 



16. A. elegans. 



17. A. alpiniforme. 



19. A. Brandegei. 



20. A. Shearii. 



21. A. alpinum. 



22. A. labradoricum. 



23. A. Williamsii. 



24. ,4. Painteri. 



25. A. tolucanum. 



26. .4. jaliscense. 



27. A. zacatecanum. 



28. A. tioides. 



29. A. strigulosum. 



30. A. hidalgense. 



31. A. guatemalcnse. 



