White : Tvlostomaceae of North America 443 



Explanation of Plates 



In most cases the drawings have been made twice natural size and re(hiced one 

 half. The capillitium and spores were drawn with a camera lucida under double the 

 magnification noted. 



Plate 31 



Fig. I. Tylostoma pedunailatum, nat. size. 



Fig. 2. Spores and capillitium, X '^1^- 



Fig. 3. Spores, X S'O- 



Fig. 4, 5. Tylostoma albicans, nat. size. 



Fig. 6. Spores and capillitium, X lyo- 



Fig. 7. Spores, X 3 lo- 



Fig. 8. Tylostoma verrucosuni, nat. size. 



Fig. 9. Spores and capillitium, X ^1^- 



Fig. 10. Spores, X 31°- 



Fig. II. Tylostoma iiiintitiim, nat. size. 



Fig. 12. Spores and capillitium, X i?^- 



Fig. 13. Spores, X 3io- 



Plate 32 



Fig. I. Tylostoma gracile, nat. size. 



Fig. 2. Spores and capillitium, X I70- 



Fig. 3. Spores, X310. 



Fig. 4. Tylostoma obesiiiii, nat. size. 



Fig. 5. Spores and capillitium, X IJO- 



Fig. 6. Spores, X 3iO- 



Fig. 7. Tylostoma A'ansense, nat. size. 



Fig. 8. Spores and capillitium, X ^7°- 



Fig. 9. Spores, X 3^°- 



Plate 33 

 Fig. I. Tylostoma exasperatiim, nat. size. 

 Fig. 2. Spores and capillitium, X i?^- 

 Fig. 3. Spores, X3io- 

 Fig. 4. Tylostoma fibrillosiim , nat. size. 

 Fig. 5. Spores and capillitium, X I70- 

 Fig. 6. Spores, X3io- 

 Fig. 7. Tylostoma tuberculatum, nat. size. 

 Fig. 8. Spores and capillitium, X I70- 

 Fig. 9. Spores, X 3io- 

 Fig. 10. Tylostoma campestrc, nat. size. 

 Fig. II. Spores and capillitium, X 170- 

 Fig. 12. Spores, X 310- 



Plate 34 . 



Fig. I. Tylostoma puiictatum, nat. size. 

 Fig. 2. Spores and capillitium, X I70- 

 Fig. 3. Spores, X 3io- 

 Fig. 4. Tylostoma poculatum, nat. size. 



Fig. 5. Spores and capillitium, X I70- I 



Fig. 6. Spores, X 3io- 



