180 



Mycologia 



its author to be related to Acrospermum; and Linda u in the 

 " Nachtraege " to Engler and Prantl's Naturlichen Pflanzen- 

 familien I 1 . 1900, places it in the Acrospermaceae. According 

 to Patouillard's original description, his plant has a superficial 

 mycelium somewhat similar to the mycelial web of Acrospermum 

 Maxoni, but also has the perithecium covered with a filamentous 

 " trama." r 



In 1881, Ellis (Bull. Torrey Bot. Club 8: 124) described a 

 fungus from Utah under the name Acrospermum corrugatum. 

 In 1884 the same fungus was found in California by Harkness 

 and named by him Acrospermum fultum (Bull. Calif. Acad. 1 : 

 47').- An examination of material issued in Ellis and Everhart's 

 North American Fungi Series II, no. 2055, shows that this species 

 has marked peculiarities which distinguish it clearly from all 

 Acrosperma, as the following comparison will indicate : 



Typical Acrospermum "Acrospermum corrugatum" 



Texture fleshy-cartilaginous. - Texture carbonaceous. , 



Corrugations occasionally present in Corrugations strongly marked and 



dried specimens, but disappearing persistent even when moist. 



upon moistening. 



Ostiole merely elliptical. Ostiole an elongated, narrow cleft. 



Growing on herbaceous plants or Growing on dead wood, 

 plant-parts. 



Since u Acrospermum corrugatum" does not possess the typical 

 and characteristic features of a true Acrospermum^ it became 

 evident that it should be excluded from the genus. Further study 

 led to the discovery that Ellis' plant is identical with the long- 

 known but comparatively rare European species : Lophium dolab- 

 riforme Wallr. (Flora Crypt. Germ. 2: 433. 1833) not hitherto 

 recognized from the American continent. In addition to the 

 characters already noted, all of the descriptions of Lophium 

 dolabriforme emphasize the peculiar rope-like, mycelial strands 

 around the base of the apothecium (see Fig. 13) and these are 

 well shown in the specimens issued in Vestergren Micromycetes 

 Rariores Selecti no. 921. In addition to the Utah and California 

 stations, Rostrup (Medd. on Groenl. 18: 61. 1894) has recorded 



