270 
NORTH AMERICAN FLORA 
Teliospore-p edicel 
long (once to 
twice length of 
spore). 
Urediniospores 
ellipsoid or ob- 
long. 
Urediniospores 
globoid or 
broadly el- 
lipsoid. 
Uredinio- 
spores rath- 
er large, 23 
-29 X 26- 
32 yw. 
Uredinio- 
spores me- 
dium-sized , 
19-27 x 21 
-30 bu. 
Teliospores considerably 
thickened at apex 
(5-10 yw). 
Urediniospores 
boid. 
Urediniospores ob- 
long or ellipsoid. 
Urediniospore-wall moderately thick (more than 2 y). 
Urediniospore-wall pale-yellow or colorless. 
Urediniospore-wall dark-yellow or brown. 
Urediniospore-wall verrucose. 
glo- 
Urediniospores rather small (19-26u 
long). 
Urediniospore-pores 3 or 4. 
Urediniospore-pores 4-6. 
Urediniospore-pores 2 or 3. 
Urediniospores medium-sized (24-324 
long) 
Teliospores small (28-35 yu long). 
Teliospores medium-sized (33-48 4 
long). 
Urediniospores rather large (24-39 uw long). 
Urediniospore-pores 2 or 3. 
Urediniospore-pores 4-6. 
Urediniospore-wall echinulate. 
Urediniospores globoid or broadly ellipsoid. 
Urediniospores medium-sized (19-21 
X 23-26 pw). 
Urediniospores rather large (24-30 
X 27-34 p). 
Urediniospore-pores 2. 
Urediniospore-pores 3 or 4. 
Teliospores medium-sized (35- 
50 yu long). 
Teliospores rather large (47-77 
» long). 
Urediniospores ellipsoid or oblong; pores 
4, sometimes 5. 
Urediniospore-wall moderately thick, 
Urediniospores ellipsoid. 
Urediniospores oblong. 
Urediniospore-wall very thick (3-4 yz). 
Urediniospore-pores scattered. 
Uredinial paraphyses present. 
Urediniospore-wall moderately thin (2 uw or less). 
Urediniospores medium-sized (not more than 29 
pw long). 
Urediniospores large (up to 42 » long). 
Urediniospore-wall moderately thick (up to 2.5 y). 
Uredinial paraphyses absent. 
Urediniospore-wall moderately thin (2 yu or less). 
Urediniospore-wall pale-yellow or colorless. 
Urediniospore-wall thicker above. 
Urediniospore-wall of uniform thickness. 
Teliospores usually not thickened above. 
Urediniospore-wall verrucose. 
Urediniospore-wall echinulate. 
32, 
26. 
45. 
94. 
D. 
bod 
{VoLUME 7 
. Arthuri. 
. Sorghi. 
. Pammelii. 
. emaculatum. 
. poculiforme. 
. interveniens. 
Mariae-Wilsoni. 
Sarcobati. 
Cynodontis. 
. Infuscans. 
. Red fieldiae. 
. Anthephorae. 
. eslavense. 
Zeugitis. 
egenulum. 
. Ceanothi. 
. Arundinariae. 
simulans. 
poculiforme. 
. rubellum, 
. Triniochloae. 
. Magnusianum. 
. purpureum. 
. Chloridis. 
. Sarcobaii. 
. Ransense. 
