236 



Mycologia 



face of the fruit. In this case the portion of the fruit most densely covered 

 with stromata is equatorial. Many of the perithecia here visible at the pe- 

 riphery have the fuzzy terminal disc indicative of maturity. Compare with 

 the same stage in Tripospora tripos shown in Figs. 23 and 25. X U. 



Fig. 21. C. fructicola. Same as Fig. 20 but showing clearly a cluster of 

 immature perithecia at the top of the figure. In these the terminal disc has 

 not yet been formed. X 11. 



Fig. 22. Tripospora tripos. Clusters of immature perithecia on both sur- 

 faces of the leaf of Podocarpus elongata. The stroma shows clearly at the 

 center of each cluster. X 11. • 



Fig. 23. T. tripos. Cluster of mature perithecia showing the fuzzy termi- 

 nal discs indicative of maturity. Compare with same stage in Corynelia fruc- 

 ticola in Fig. 20. X 11. 



Fig. 24. T. tripos. Mature and dehiscent perithecia. The apex of the 

 perithecium appears as a funnel with a fuzzy brown margin and a throat 

 filled with a black powder consisting of the spores. X.n. 



Fig. 25. T. tripos. A few perithecia of the same age as those pictured in 

 Fig. 23 shown in lateral view. X ri. 



Plate 16 



Fig. 26. Corynelia tropica. A group of mature but unruptured perithecia. 

 Material collected in Chile. X n. 



Fig. 27. C. tropica. A more elongated group of perithecia. Material a 

 portion of the type collection (No. 1261. Rabenhorst, Fungi europaei) from 

 Chili. X 11. 



Fig. 28. C. tropica. A cluster of mature ruptured perithecia. The type 

 of dehiscence is similar to that in other species in which a single apical cleft 

 occurs, but here the resultant lobes have the fuzzy character of the disc in 

 Tripospora tripos. Material collected in Chili. X 11. 



Fig. 29. C. tropica. Clusters of immature perithecia from a collection of 

 material made in the Philippine Islands. X 11. 



Fig. 30. Sorica maxima. Perithecia arising from an annular stroma bor- 

 dering a perforation in the frond of Polypodium. As a result of proliferation 

 several perithecia may be seen in linear series. Material photographed is a 

 portion of the original collection on which Stevens founded Corynelia pteri- 

 dicola. X 1 1. 



Fig. 31. .S. maxima. Perithecia arising from a stroma at the base of a 

 sorus of sporangia on the leaf of Polypodium. These are the primary peri- 

 thecia and proliferation has not yet taken place. Material photographed dis- 

 tributed by Rehm (Ascomyceten No. 18 17) as Capnodiella maxima. X n. 



Fig. 32. vS. maxima. Perithecia arising from a stroma at the base of a 

 sorus of sporangia on the leaf of Polypodium. As a result of proliferation 

 several perithecia are here shown in linear series. Material from Patouillard 

 collected by Sodiro in Ecuador. X n. 



Plate 17 



Fig. 33. Caliciopsis pinea. Perithecia arising from stromata on the bark 

 of Pinus strobus. Type material from herbarium of Peck. X 11. 



