Fie. 
Fig. 
Fie. 
EXPLANATION OF PLATEH I. 
PESTALOZZIA MARL# Clinton. 
Page 102. 
1. Apical part of a leaf of Rhododendron maximum bearing the Pestalozzia. 
13. 
14. 
. 15. 
16. 
ive 
18. 
19. 
. Three spores, one with the peduncle attached, x 400. 
PoOLYPORUS VOLVATUS Peck. 
Page 98. 
. A plant attached to a piece of wood. 
. A plant with the centrally ruptured volva cut loose from the anterior 
portion of the pileus and pendent, revealing the pores. 
. Vertical section of a plant with heaps of spores on the inner surface of 
the ruptured volva. 
. Four spores x 400. 
OIDIUM CORTICALE Peck. 
Page 105. 
. A piece of bark bearing tufts of the Oidium. 
. Flocci and spores x 400. 
HELICOSPORIUM ELLIPTICUM Peck. 
Page 103. 
. A piece of wood bearing tufts of the Helicosporium. 
. Anastomosing flocci x 400. 
. A coiled spore, lateral view, x 400. 
. A coiled spore, vertical view, x 400. 
PuccriniAa VE&RATRI Clinton. 
Page 103. 
Apical part of a leaf of Veratrum viride bearing the Puccinia. 
Two spores x 400. 
AGARICUS (OMPHALIA) RHODODENDRI Peck, 
Page 94. 
Two plants attached to a piece of bark, 
A plant magnified. 
Vertical section of a pileus magnified. 
Transverse section of a stem magnified. 
Four spores x 400. 
