54 
GERTRUDE E. DOUGLAS 
Plate VI 
Entoloma grayanum (figs. 101-121) 
Fig. loi. X 33 diam. Young fruit body in which the pileus primordium is 
beginning to differentiate from that of the stem. 
Fig. 102. X 33 diam. A slightly older stage. 
Fig. 103. X 31 diam. Pileus and stem primordia have developed and the 
hymenophore fundament is commencing to form in the furrow between them. 
Figs. 104 and 105. X 31 diam. Median and tangential sections of a fruit 
body showing the primordium better developed. 
Figs. 106-109. X 31 diam, A series of sections, showing the palisade layer, 
just previous to the formation of the gill salients. 
Fig. iio. ^ X 518 diam. Enlargement of the section of fig. 108, showing the 
palisade layer. 
Figs. 111-115. X 30 diam. A series of sections, forming young gill ridges. 
Figs, i 16-120. X 30 diam. Slightly older stage, showing the same. The 
\ black dots appearing on the margin in fig. 119 are young basidia. 
Fig. 121, X 191 diam. An enlargement of the gill salients of the section of 
fig. 119. The nuclei of the young basidia are very prominent. 
Plate VII 
Entoloma cuspidatiim (figs. 122-139) 
Fig. 122. X 32 diam. Young undifferentiated fruit body, still attached to 
a rhizomorph. 
Fig. 123. X 32 diam. The fruit body by growth at the apex is beginning to 
differentiate into the pileus primordium. 
Figs. 124 and 125. X 32 diam. Older stages showing the pileus and stipe 
primordia. 
Figs. 126 and 127. X 32 diam. Median and tangential sections of a fruit 
body, in which the primordium of the hymenophore has made its appearance. 
Figs. 128 and 129. X 32 diam. Median and tangential sections from a fruit 
body, which has developed the palisade layer. 
Figs. 130-134, X 32 diam. A series of sections, showing the development of 
young gill salients. 
Fig. 135. X 29 diam. Median section of a nearly mature fruit body. 
Fig. 136. X 213 diam. Section of the gill of a mature plant, showing the 
cubical basidiospores. 
Fig. 137. X 213 diam. An enlargement of the section of fig. 128, showing the 
palisade layer. 
Fig. 138. X 213 diam. An enlargement of the section of fig. 126, showing the 
hymenophore in a primordial state. 
Fig. 139. X 213 diam. An enlargement of the section of fig. 134, showing the 
young gills. 
