182 NORTH AMERICAN FLORA 
Paraphyses not thickened above, cylindrical. 8. R 
Pores in two transverse zones, 
Pore-zones equidistant from equator. 
Urediniospores mostly oblong. 9. R 
Urediniospores mostly ellipsoid. 10. &. 
Pore-zones at and below the equator. 11. R. 
Pores scattered, numerous. 
Paraphyses with wall thicker above. 
Paraphyses clavate, much thicker at apex. 12. Rk 
Paraphyses capitate to clavate-capitate. 
Paraphyses moderately thickened at apex; ure- 
diniospore-wall thin. 13. RB. 
Paraphyses moderately thickened at apex; ure- 
diniospore-wall medium thick. 14. R, 
Paraphyses slightly thicker at apex than on sides; 
urediniospore-wall thin. 15. R. 
Paraphyses cylindrical to spatulate, slightly thicker 
at apex. 16. R. 
Paraphyses with wall evenly thick. 
Paraphyses clavate; urediniospores echinulate-ver- 
rncose. 17. R 
Paraphyses clavate-capitate or spatulate ; uredinio- 
spores verrucose, 18. 2 
Host belonging to family Caesalpiniaceae. 
Uredinial paraphyses absent; urediniospores with evenly thick 
wall; pores scattered. 
Urediniospores closely verrucose. 19. R 
Urediniospores finely echinulate-verrucose. 20. Rk 
Urediniospores sparsely echinulate. 21. R 
Urediniospores thickly echinulate. 22. R 
Uredinial paraphyses present. 
Urediniospores with evenly thick wall; pores scattered. 
Paraphyses with evenly thick wall, colorless. 
Paraphyses cylindrical, the walls thick; uredinio- 
spore-wall thick. RR, 
Paraphyses clavate-capitate, the walls thin. 
Urediniospore-wall medium thin. 24. R. 
Urediniospore-wall medium thick. 25. R 
Paraphyses with evenly thick wall, colored, clavate or 
spatulate ; urediniospore-wall medium thick. 26. R 
Paraphyses with wall thicker above, colored, capitate, 
much thicker at apex; urediniospore-wall thin. 27. BR. 
Urediniospores with wall thicker above, pores in one trans- 
verse zone, superequatorial. 8. FR. 
Host belonging to family Fabaceae. 
Urediuial paraphyses absent. 
Urediniospores with wall thicker above; pores in one trans- 
verse zone, approximately equatorial. . RR, 
Urediniospores with evenly thick walls. 
Pores in one transverse zone; urediniospores verrucose. 30. R. 
Pores scattered. 
Urediniospores echinulate-verrucose. 31. R. 
Urediniospores echinulate, 
Wall thin, pale-yellow. 32, R. 
Wall thick, chestnut-brown. 33. R. 
Pores scattered, but near equator; urediniospore-wall 
thick, chestnut-brown. 4. RB, 
Uredinial paraphyses present ; urediniospores with evenly thick 
wall, pores scattered. 
Paraphyses with evenly thick wall. 
Urediniospore-wall thin. 35. 
Urediniospore-wall thick. 36. 
Paraphyses with wall thicker above. 37. 
Host belonging to family Euphorbiaceae. _ . 
Uredinial paraphyses present; urediniospores with evenly 
thick wall, pores in one transverse zone. 
38. R. 
[VoLuME 7 
. gracilis. 
. stliguae, 
Acaciae-pennatulae. 
versatilis. 
- CXpansa, 
. igualica. 
lexensis. 
mimosicola, 
S¥agrvans. 
. Mimosae-caeruleae. 
. Mimosae-albidae. 
. Cassiaecola. 
. indica, 
. mesilliana. 
. portoricensis. 
Longiana. 
spinulosa. 
. papillifera. 
. inconspicua. 
Humphreyana. 
. Caesalpiniae. 
Talpa, 
epiphylia. 
irregularis. 
caulicola,. 
Brongniartiae. 
similis. 
R. Piscidiae. 
. R. 
R. Indigoferae. 
laevis. 
appendiculala. 
1. Ravenelia Ingae (P. Henn.) Arthur. 
Uredo Ingae P. Henn. Hedwigia Beibl. 38: 69. 1899. 
Uredo excipulata Sydow, Ann. Myc. 2: 350. 1904. 
O. Pycnia amphigenous, numerous, in crowded orbicular groups 1-3 mm. across, sub- 
cuticular, dark-brown, depressed-hemispherical, 85-112 across, 25-35 u high. 
II. Uredinia amphigenous causing more or less hypertrophy, at first surrounding the 
pycnia, subepidermal, small, crowded and confluent, forming groups or rings 2-8 mm. 
