White : Tylostomaceae of North America 443 



Explanation of Plates 



In most cases the drawings have been made twice natural size and reduced one 

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

 magnification noted. 



Plate 31 



Fig. 1. Tylostoma peduncul at um, nat. size. 

 Fig. 2. Spores and capillitium, X I 7°- 

 Fig. 3. Spores, X 3 IO « 



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

 Fig. 6. Spores and capillitium, X I 7°- 



Fig. 7. Spores, X3 IQ - 

 Fig. 8. Tylostoma verrucosum, nat. size. 

 Fig. 9. Spores and capillitium, X I 7°- 

 Fig. 10. Spores, X 3 IO - 



Fig. 11. Tylostoma minutum, nat. size. 

 Fig. 12. Spores and capillitium, X l 7°- 

 Fig. 13. Spores, X 3 IQ - 



Plate 32 



Fig. 1. Tylostoma gracile, nat. size. 



Fig. 2. Spores and capillitium, X I 7°- 



Fig. 3. Spores, X 3 IG - 



Fig. 4. Tylostoma obestim, nat. size. 



Fig. 5. Spores and capillitium, X I 7°- 



Fig. 6. Spores, X3 IO « 



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



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



Fig. 9. Spores, X 3 IO « 



* 



Plate 33 ' • . 



Fig. 1. Tylostoma exas/>eratum 9 nat. size. 



Fig. 2. Spores and capillitium, X I 7°* 



Fig. 3. Spores, X3 IQ - 



Fig. 4. Tylostoma fibrillosum, nat. size. 



Fig. 5. Spores and capillitium, X I 7°- 



Fig. 6. Spores, X 3 IO - 



Fig. 7. Tylostoma tuberculatum , nat. size. 

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

 Fig. 9. Spores, X 3 IO « 



Fig. 10. Tylostoma campestre^ nat. size. 

 Fig. 11. Spores and capillitium, X I 7°- 

 Fig. 12. Spores, X 3 10. 



Plate 34 



Fig. i. Tylostoma punctatum, nat. size. 

 Fig. 2. Spores and capillitium, X I 7°- 

 Fig. 3. Spores, X 310. 



FlG. 4. Tylostoma poculatum, nat. size. 

 FlO. 5. Spores and capillitium, X I 7°- 

 Fig. 6. Spores, X 3i°- 



