EXPLANATION OF PLATES. 



Plate I. 

 Lachnea setosa 



Fig. 1 — apothecium, natural size 



2 — structure of apothecia, X 55 



3 — hair from outside of cup, X 55 

 " 4 — paraphysis, X 200 



" 5 — ascus, X 200 



6 — spore somewhat immature, X 200 

 7 — mature spores, X 200 



Pustularia stevensoniana 



Fig. 8 — apothecium, natural size 



9 — structure of apothecia, X 45 

 " 10 — paraphysis, X 325 

 " 11 — ascus, X 325 

 " 12 — spores, X 325 



Plate II. 

 Ascobolus atrofuscus 



Fig. 1 — ■ apothecium, X 2 



2, 3, and 4 — Sterile part of apothecium, X 325 



5 — paraphysis, X 325 



6 — ascus closed, X 325 



7 — ascus with operculum removed, X 325 



8 — mature spores, X 325 



Plate III. 

 Arachnopeziza aurelia 



Fig. 1 — apothecium, X 2 

 " 2 — paraphyses, X 325 

 " 3 — ascus, X 325 

 " 4 — spores, X 325 



Sclerotinia tuberosa 



Fig. 6 — mature apothecium and sclerotium, natural size 



7 — younger stages, natural size 



8 — paraphysis, X 325 

 " 9 — ascus, X 325 



" 10 — spores, X 325 



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