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[Vol. 2 



ANNALS OF THE MISSOURI BOTANICAL GARDEN 



Fig. 10. Chart showing suggested phylogeny of the Ascomycetes. 



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Atkinson, Geo. F. ('95). Damping off. Cornell Univ. Agr. Exp. Sta., Bull. 94: 

 231-272. pi. 1-6. 1895. 



Bachmann, Miss F. M. ('12). A new type of spermogonium and fertilization in 

 Collema. Ann. Bot. 26:747-760. pi. 69. 1912. 



, ('13 ). The origin and development of the apothecium in Collema pul- 



posum (Bernh.) Ach. Archiv f. Zellforsch. 10:309-430. pi. 30-36. 1913. 



