92 



Mycologia 



Explanation of Plate 21 



The spores on this plate were drawn with the aid of the camera kicida, the 

 object being to show the comparative size and form of the spores of the 

 different species of Hypomyces and Peckiella, X Soo. The drawings are from 

 type material where such material is available. In a few cases this could not 

 be obtained. 



1. Peckiella viridis (Albert. & Schw.) Sacc. 



2. Peckiella Banningiae (Peck) Sacc. Drawn from type material. 



3. Peckiella transformans (Peck) Sacc. Drawn from cotype. 



4. Peckiella hymenii Peck. Drawn from type material. 



5. Peckiella lateritia (Fries) Maire. Drawn from material obtained from the 



herbarium of Fries and doubtless determined by him. 



6. Peckiella camphorati (Peck) Seaver. Drawn from type material. 



7. Hypomyces Lactiftuorum (Schw.) Tul. Drawn from type material. 



8. Hypomyces apiculatus Peck. From fresh material determined by Dr. Peck. 



9. Hypomyces aurantius (Pers.) Tul. From herbarium material. 



10. Hypomyces rosellus (Albert. & Schw.) Tul. From herbarium material. 



11. Hypomyces macrosporus Seaver. From type material. 



12. Hypomyces hyalinns (Schw.) Tul. Drawn from type material. 



13. Hypomyces aureo-nitens Tul. Drawn from Ohio material. 



14. Hypomyces citrinellus (Ellis) Seaver. Drawn from type material. 



15. Hypomyces papyraceus (Ellis & Holw.) Seaver. From type. 



16. Hypomyces chrysospermus (Bull.) Tul. From herbarium material. 



17. Hypomyces polyporinns Peck. Drawn from cotype material. 



