462 



THAXTEK. MONOGRAPH OF THE LABOULBENIACE.E. 



Stigmatomyces spiralis Thaxter. Figs. 25-26. Type forms of mature individuals, X 290. Figs. 27-28. Two 

 spores, X 1100. Fig. 29. Detail of antheridial appendage, X 1100. 



Stigmatomyces purpureus Thaxter. Figs. 30-31. Typical form of mature individuals, V. 290. Fig. 32. A 

 common variation, X 290. Fig. 33. A spore, X 1100. Fig. 34 35. Detail of tip of perithecium from different 

 points of view, X 1100. Fig. 36. Detail of antheridial appendage, X 1100. 



Stigmatomyces Scaptomyzw Thaxter. Figs. 37-39. Mature individuals. Fig. 37 from California, the rest from 

 Maine, X 290. Fig. 40. A spore, X 1100. Fig. 41. Det ail of ant heridial appendage, X 1100. 



PLATE XLVII. 



Stigmatomyces Limosince Thaxter. Fig. 1. A spore, X 1100. Fig. 2. Small stout form of mature individuals, 

 X 290. Figs. 3-4. Two mat ure individuals of the typical form, X 290. Fig. 5. Detail of antheridial appendage, 

 X 625. Fig. 6. Mature individual of California!) form, X 290. Fig. 7. Young individual: a trichoygne at the 

 right with adherent antherozoids, X 1100. 



Stvjmatomyces Papuanus Thaxter. Fig. 8. A spore, X 1100. Figs. 9-12. Mature individuals illustrating 

 variations, X 290. Fig. 13. Detail of antheridial appendage, X 1100. 



Stvjmatomyces dubius Thaxter. Fig. 14. A Spore, X 1100. Figs. 15-17. Mature individuals, X 290. Fig. 

 18. Detail of antheridial appendage, 1100. 



Stigmatomyces micrandrus Thaxter. Fig. 19. A spore, X 1100. Figs. 20-21. Mature individuals, X 290. 

 Figs. 22-23. Detail of antheridial appendages from opposite sides, X 1100. Fig. 24. Tip of perithecium, X 1100. 



Stigmatomyces rugosus Thaxter. Figs. 25-26. Type form from Ralum, X 290. Fig. 27. Detail of antheii- 

 dium from Ralum form, X 1100. Fig. 28. Mature individual from Puyallup, Washington, X 290. 



Stigmatomyces humilis Thaxter. Figs. 29-30. Two mature individuals, X 290. Figs. 31-32. Detail of an- 

 theridial appendages, X 1100. 



PLATE XLVHI. 



Arthrorliynchus Cyclopodite Thaxter. Fig. 1. Mature individual showing lateral view of ascogenic cells: the 

 rhizoids broken from the haustorial cell, X 290. Fig. 2. Mature individual showing its relation to the integument 

 and body cavity of the host ; a few of the rhizoids which form a tangled mass indicated scmidiagrammatically, X 290. 

 Fig. 3. Detail of antheridial appendage, X 625. Fig. 4. Detail of tip of perithecium seen partly in optical section 

 showing the four papillce which surround the ostiole, X 625. Fig. 5. Detail of tip of perithecium showing outer 

 bifid protuberances, X 625. Fig. 6. A spore, X 625. 



. Arthrorliynchus Nyctcribiw (Peyritsch.). Fig. 7. Mature individual showing its relation to the integument of 

 host; the perithecium shown in optical section except at its tip, X 290. Fig. 8. Mature individual, the perithecium 

 shown in surface view, X 290. Fig. 9. Detail of antheridial appendage, X 625. Fig. 10. Tip of perithecium in 

 detail, X 625. 



Arthrorhynchus Eucampsipodw Thaxter. Fig. 11. Mature individual from which the rhizoidal apparatus has 

 been broken; the asci are seen end on in several rows the ascogenic cell lying behind, X 290. Fig. 12. Tip of peri- 

 thecium in detail, X 625. Fig. 13. Detail of tip of perithecium seen in optical section, X 625. Fig. 14. Detail of 

 antheridial appendage. 



PLATE XLIX. 



Teralomyccs Zcalandica Thaxter. Figs. 1-2. Anterior and posterior views of mature individuals, X 290. Fig. 

 3. Portion of an appendage with branchlet bearing two autheridia, X 1100. 

 Teratomyces Philontlii Thaxter. Figs. 4-5. Mature individuals, X 290. 

 Teratomyces pctiolatus Thaxter. Fig. 7. Mature individuals, X 290. 



Stigmatomyces Diopsis Thaxter. Figs. 8-9. Two mature individuals, X 290. Fig. 10. Detail of antheridial 



appendage, X 1100. 



Stigmatomyces Limnophoree Thaxter. Figs. 11-12. Two individuals not quite mature, X 2S0. Fig. 13. 

 Detail of antheridial appendage, X 1100. 



Stigmatomyces Sarcophagae Thaxter. Fig. 14. Detail of antheridial appendage, X 1100. Fig. 15. Mature 

 individuals; short form, X 290. Fig. 16. Mature individual of typical form, X 290. Fig. 17. Unisexual indi- 

 vidual (male) illustrating partial atrophy in one member of a spore pair, X 290. 



Stigmatomyces pauperculus Thaxter. Fig. 18. Mature individual, X 290. Fig. 19. Detail of antheridial 

 appendage, X 1100. 



Stvjmatomyces Venezuela: Thaxter. Figs. 20-21. Two mature individuals, X 290. 



Stigmatomyces Bacri Peyritsch. Fig. 22. Detail of antheridium, X 1100. Figs. 23-24. Two mature individ- 

 uals (Vienna), X 290. 



