90 Trans. Acad. Sci. of St. Louis. 



TiLMADOCHE POLYCEPHALA, (ScllW.) Macbl'. (P. 1060). 



Physarum i^olymor'phum ., Rost. 

 Spores, 7-9/^. 



FuLiGo ovATA, ( Schaeff . ) (Mcbr. — 277). 



Rather common, on stumps and rotting trunks. 

 Spores, globose, smooth, 6-7. 5At. 



Lycogola epidendrum, Fr. (P. — 52.) 



Forest park. On trunks, May 18, 1898. 



STEMONITIS. 



S. MORGANi, Pk. (Macbr — 261). 



May to July. Common. On trunks. Bot. Gazette, 

 p. 33, March, 1880. 

 Spores, smooth, 7.5-9/^. 



S. SMiTHii, Macbr. (Macbr. — 262). 



Forest park, June 8, 1899. On trunks. 

 Spores, 6^1. 



S. MAXIMA, Schw. (Macbr. — 1153). 

 Forest park, June 8, 1899. 



Spores, 7-9/x. 



ARCYRIA. 



A. DENUDATA, (L) Shcld. (Macbr. — 69). A. 2:>unicea, Pers. 

 Forest park, June, 1899. See, Myx. p. 195, — Macbr. 



Spores, 5-7.5/^. 



A. ALBiDA, (Pers.) Lister (275). Mycetozoa, p. 186. A. 



cinerea^ (Bull.) Pers. Myx. p. 196, (Macbr.). 



Forest park, June 8, 1899, June 20, 1900. 

 Spores, smooth, 6-7/-«. 



A. DiGiTATA, (Schw.) Rost. (P. QQ) . 



A variety of A. albida, — Lister. 



Hemiarcyria RUBiFORMis, (P. — 68). HemitricMa vespav- 



ium, (Batsch) (1154) Macbr. : Myx. p. 203. 



Forest park. May and June, 1898-99. 

 Spores, 9-10/-t. 



