458 



THAXTER. MONOGRAPH OF THE LABOULBENIACE^E. 



Chitonomyccs Hydropori Thaxtcr. Fig. 28. Mature individual, X 290. Fig. 29. Mature individual more 

 highly magnified, X 600. 



Ch/Uonomyces occultus Thaxter. Fig. 30. Mature individual, X 290. Fig. 31. Mature individual more highly 

 magnified, X 600. 



Chitonomyccs Bullardi Thaxter. Figs. 32-34. Two mature individuals, X 290. Figs. 35. Tip of peritheeium 

 enlarged, X 1100. 



Chitonomyces Floridanus Thaxter. Figs. 36-37. Mature individuals, X 290. Fig. 38. Mature individual 

 more highly magnified, X 600. 



Monoicomyces Leptochiri Thaxter. Fig. 39. Individual with simple axis from abdomen of host, X 600. Fig. 

 40. Branched individual growing on mouth parts of host, X 600. 



PLATE XXXV. 



Monoicomyces similis Thaxter. Fig. 1. Mature individual, anterior view, X 600. Fig. 2. Posterior view 

 showing primary appendage, X 600. 



Monoicomycrs Brittanicus Thaxter. Fig. 3. Anterior view of mature individual, X 600. Fig. 4. Posterior 

 view of receptacle and primary appendages with perithecia and antheridia, X 600. 



Monoicomyces Echidnoglossce Thaxter. Fig. 5. Anterior view of a somewhat irregularly developed individual, 

 X 600. Fig. 6. Young individual lateral view showing the primary appendage at right X 600. Fig. 7. Antheri- 

 dium, X 1100. 



Monoicomyces Homalolw Thaxter. Fig. 8. Large individual from English type-material, anterior view, X 600. 

 Fig. 9. Smaller form from Maine, the bases of the perithecial stalks blackened, X 600. Fig. 10. Young individual, 

 lateral view showing primary appendage, at left, and antheridia, X 1100. 



Monoicomyces Oxypodas Thaxter. Fig. 11. Posterior view of a pair of individuals, X 600. Fig. 12. Lateral 

 view of a single individual, X 600. Fig. 13. Antheridium, X 1800. 



PLATE XXXVI. 



Monoicomyces nigresccns Thaxter. Figs. 1-2. Posterior view of mature individual, X 600. Fig. 3. Anterior 

 view of mature individual, X 600. Fig. 4. Ant heridium more highly magnified, X 1100. 



Monoicomyces Aleocharee Thaxter. Fig. 5. Well developed individual posterior view, X 600. Figs. 6-7. 

 Anterior and posterior views of antheridia with four and two appendages respectively, X 1100. 



Monoicomyces St. Helenas Thaxter. Fig. 8. Well developed individual showing three of its four perit hecigerous 

 branches, X 600. Fig. 9. Individual showing one of its three peritheeigerous branches with sterile appendages 

 and antheridia subtending the terminal peritheeium, X 600. 



PLATE XXXVII. 



Polyascomyccs Tricliophyce Thaxter. Figs. 1-2. Two mature individuals the body of the peritheeium in optical 

 section showing the numerous aseogenic cells, X 600. 



Kleidiomyc.es furcillatus Thaxter. Fig. 3. Mature individual, X 600. Fig. 4. Portion of a receptacle showing 

 antheridium at the left, X 600. 



Cantharomyces Platyslethi Thaxter. Figs. 5-6. Mature individual the branches of the primary appendage 

 destroyed, X 600. 



Eumonoicomyces invisibilis Thaxter. Fig. 7. Mature individual, X 600. Fig. 8. Young individual with 

 immature perithecia subtended by an antheridium, X 1100. 



Eumonoicomyces Californicus Thaxter. Figs. 9-10. Two mature individuals, X 600. 



Eumonoicomyces Papuanus Thaxter. Figs. 11-12. Two immature individuals, X 600. Fig. 13. Young 

 individual, the primary appendage at the left with pointed terminal cell, X 1100. Fig. 14. Young peritheeium and 

 trichogyne, X 1100. Figs. 15-17. Anterior, posterior and obliquely lateral views of antheridia, X 1675. Fig. 18. 

 Anterior view of antheridium in optical section, X 1675. 



Euhaplomyces Ancyrophori Thaxter. Figs. 19-20. Two mature individuals, X 285. Fig. 21. An antheri- 

 dium, the discharge-canal at the left, X 1100. 



PLATE XXXVIII. 



Eucantharomyces Atrani Thaxter. Figs. 1-2. Two mature individuals, X 225. Fig. 3. Antheridium, X 600. 

 Eucantharomyces Casnoniw Thaxter. Figs. 4-5. Two mature individuals, X 225. Fig. 6. Antheridium, X 

 600. Fig. 7. Spore, X 600. 



