460 



THAXTER. — MONOGRAPH OF THE LABOULBENIACE^E. 



from the opposite (posterior) side, X 625. Fig. 13. A female individual in situ on the integument of host producing 

 nine perithecia on two secondary receptacles between which in the centre a male individual projects, X 290. Fig. 

 14. A male individual from which some of the antheridial branches have been removed, X 625. Fig. 15. One of 

 these antheridial branches enlarged, X 1100. Fig. 16. Two spores. X 1100. Fig. 17. Primary receptacle of a 

 female individual showing branch at right, X 625. 



Herpomyccs {orbicularis Thaxter. Fig. 18. Female individual with two secondary receptacles each bearing a 

 perithecium; a male individual is shown between them, X 290. Fig. 19. Secondary receptacle bearing perithecia 

 showing connection at the right with branch from primary receptacle, X 625. Fig. 20. Detail of tip of perithecium, 

 a reverse view as compared with fig. 19, X 625. Fig. 21. Spine with male and female primary receptacles in situ, 

 the male at left has two antheridia; the female shows branch at left from its subbasal cell which becomes furcate 

 below, X 1100. Fig. 22. A spore, X 1100. 



PLATE XLI. 



Herpomyces Diplopterce Thaxter. Fig. 1. Female individual with two secondary receptacles, X 290. Fig. 2. 

 A similar female individual enlarged seen from behind showing the primary receptacle which gives rise to a branch 

 which in turn branching to the right and left forms the two secondary receptacles. A male individual is shown 

 beside the female primary receptacle at the left, X 625. Fig. 3. Detail of tip of perithecium X 1100. Fig. 4. Male 

 individual bearing three antheridia, X 110. Fig. 5. A spore, X 1100. 



Herpomyccs Periplanctce Thaxter. Fig. 6. A group of five mature female individuals in situ on integument of 

 host, the secondary receptacle having developed the characteristic shield-like covering from behind which the tips 

 of the male individuals project in several instances, X 290. Fig. 7. A single typical female individual a male shown 

 projecting from behind the t ip of the shield, X 290. Fig. 8. A female individual in situ showing habit of the species 

 when an individual grows wholly on a spine. Haustoria are shown penetrating to the medulla of the spine from the 

 cells of the secondary receptacle and from the foot of the primary receptacle, X 500. Fig. 9. Female individual 

 with shield not well developed, X 290. Fig. 10. Male (at left) and female individuals in situ on a spine; the primary 

 receptacle of the female has developed an unusually long branch which, creeping to the base of the spine, has produced 

 a secondary receptacle with a rudimentary shield, X 625. Fig. 11. Two spores, X 1100. Fig. 12. Part of a 

 female primary receptacle four cells of which appear to have sent out branches to form secondary receptacles, 625. 

 Fig. 13. Male individual. X 625. 



Herpomyces chcelophilus Thaxter. Fig. 14. Male and female individuals in situ on spine, X 625. Fig. 15. 

 Female individual in situ, X 290. Fig. 16. A spore, X 1100. Fig. 17. Germinating spore pair in situ on spine, 

 X 625. Fig. 18. Male (left) and young female individual showing the connection of the secondary receptacle with 

 the branch from the primary receptacle, X 625. 



PLATE XLII. 



Acallomyces Homalola Thaxter. Figs. 1-2. Mature individuals, X 600. Fig. 3. Antheridial appendage, 

 X 1100. Fig. 4. A spore, X 1100. 



Acorn psornyces Corticarice Thaxter. Fig. 5. Mature individual; the Type, X 600. 



Acompsomyces Atomarim Thaxter. Figs. 6-7. Mature individuals, X 600. Fig. 8. Young individual show- 

 ing the antheridial appendage at the left: at the right the young perithecium (procarp) bearing a furcate trychogyne 

 the swollen tips of which bear several receptive bladder-like outgrowths, X 1100. Fig. 9. Detail of an antheridial 



appendage, X 1100. 



Acompsomyces brunneolus Thaxter. Figs. 10-11. Two mature individuals, X 600. Fig. 12. Young individ- 

 ual with peculiar furcate trichogyne similar to that represented in fig. 8, X 1100. 



Acompsomyces pauperculus Thaxter. Figs. 13-14. Two mature individuals, X 600. Fig. 15. A spore, X 



625. 



Dioicomyces obliqueseptatus Thaxter. Fig. 16. Female individual, the base broken off, X 290. Fig. 17. A 

 spore, X 1100. 



Dioicomyces Anthici Thaxter. Figs. 18-20. Female individuals, X 290. Fig. 21. Male individual. X 290. 

 Fig. 22. Mature male (at left) and young female developed from same spore-pair. X 1100. Fig. 23. Mature 

 male (at right) and young female the latter terminated by a two-celled trichogyne showing the small terminal thin- 

 walled receptive portion. Fig. 24. Male spore. X 1100. Fig. 25. Female spore, X 1100. 



Dioicomyces onchophorus Thaxter. Figs. 26-27. Mature female individuals. X 290. Fig. 28. Male individ- 

 ual, X 1100. Fig. 29. Male (at right) and female spores, X 1100. 



Dioicomyces spinigerus Thaxter. Figs. 30-31. Mature female individuals. X 290. Figs. 32-33. Male indi- 

 viduals, X 1100. Fig. 34. A female spore, X 1100. 



