272 NORTH AMERICAN FLORA 
Urediniospore-wall irregularly thickened. 
Urediniospore-wall of uniform thickness, thin, 
Telia long covered by the epidermis. 
Urediniospore-pores equatorial. 
Urediniospore-pores 2. 
Paraphyses wanting; urediniospore-wall 2-3 » thick. 
Paraphyses present; urediniospore-wall 1-1.5 « thick. 
Urediniospore-pores 4 
Paraphyses wanting; urediniospores colorless. 
Paraphyses present. 
Urediniospores brown. 
Urediniospores colorless. 
Urediniospore-pores 5 
Urediniospore-pores scattered or obscure. 
Uredinial paraphyses present. 
Teliospores unknown. 
Teliospores with digitate projections at apex. 
Teliospores small (10-16 X 27-45 y), with low 
projections. 
Teliospores medium-sized (13-19 X 30-61 y), 
with prominent projections. 
Projections 3-12 uw long, spreading. 
Projections 10-25 uw long, erect. 
Teliospores with smooth apex. 
Paraphyses numerous. 
Paraphyses thin-walled, I yu. 
Paraphyses thick-walled, 2-4. 
Paraphyses variously bent and incurved. 
Teliospores 2-celled. 
Teliospores 1--3-celled. 
Paraphyses mostly erect and irregular. 
Teliospores large, 45—64 yu long. 
Teliospores smaller, 29-51 yu long. 
Paraphyses few, the wall rather thin, 1.5 yz. 
Teliospores broad (18-34 y). 
Teliospores narrow (10-24 yp). 
Urediniospores medium-sized, 
long. 
Urediniospore-pores 6-8. 
Urediniospore-pores 10-15. 
Urediniospores small, 16-24 u long. 
Uredinial paraphyses absent. 
Urediniospore-wall moderately thick (more than 
2). 
Urediniospore-wall moderately thin (2 yu or less). 
Urediniospore-wall pale-yellow or colorless. 
Teliospores with digitate projections at apex. 
Teliospores small (10-16 X 27-45 y), with 
low projections. 
Teliospores medium-sized (13-19 X 30-61 
#), with prominent projections. 
Teliospores with smooth apex. 
Teliospores rather narrow (10-18 y). 
Telia bordered by stromal hyphae. 
Urediniospores smail (16-24 yp 
long). 
Urediniospores medium-sized (19- 
32 w long). 
Urediniospore-pores 6-8. 
Urediniospore-pores 10-15. 
Telia not bordered by stromal hyphae. 
Teliospores 1-3-celled. 
Teliospores 2-celled. 
Teliospores small (10-16 X 32 
19-32 us 
—39 p). 
pr 7 le large (13-21 x 50 
—85 p). 
‘Teliospores moderately broad (15—21 y« or 
more). 
Teliospores often 1-celled 
spores). 
Teliospore-wall moderately thin 
(meso- 
5B). 
Teliospore-wall moderately thick 
(1.5~2.5 yu). 
‘Teliospores usually uniformly 2-celled. 
Urediniospores rather small (15-18 
X 19-24 p) ' 
Uredinia Gananion boawit 
Uredinia yellow. 
93. 
57. 
74, 
87. 
[VoLuME 7 
. versicolor. 
. Jamesianum. 
Cenchri. 
. phakopsoroides, 
. pallescens, 
. Chaseanum, 
ignavum. 
. polysorum. 
. wgnavum, 
. subdigitaium, 
. Rhamni. 
. Periclymeni. 
. montanense, 
epiphyllum. 
phakopsoroides. 
Koeleriae. 
pygmaeum. 
monianense. 
Clematidis. 
glumarum. 
Impatientis. 
. procerum. 
. subdigitatum, 
. Rhamni. 
. Impatientis. 
. Clematidis. 
. glumarum,. 
. pallescens, 
Cameliae. 
. Cock erellianum. 
. anomalum. 
. Piperi. 
. Eatoniae. 
. apocryplum. 
