106 



by Prof. 0. E. Bessey. They will show the most recent views of bota- 

 nists as to the systematic position of the plant in question : 



Entomoplitliora calopteni Bessey. — The original description of this species appeared 

 in the American Naturalist for December, 1883 (page 1280). It is reproduced here 

 verbatim : 



" I. Einpnsa stage, not seen. 



" II. Tarichium stage : Oospores globular, or from pressure somewhat irregular in 

 outline, colorless, 36 to 39/f. in diameter; walls thick (4 /«.), colorless, smooth ; pro- 

 toplasm granular, after as if composed of many small cells, often with a large round 

 vacuole. Occurring as a clay-colored mass in the body cavity and femora of Calop- 

 terius differentialis. 



"Ames, Iowa, August and September, 1883." 



Specimens of this fungus collected in Wisconsin by Trelease and Seymour were 

 distributed under the name given above by Ellis and Everhart in North American 

 Fungi, No. 1801. In April, 1888, Mr. Roland Thaxter published, in the Memoirs of 

 the Boston Society of Natural History, an important paper on The Entomophthorae 

 of the United States, in which he revises the species of the group, and adopts the 

 older generic name Empusa, first proposed by Cohn in 1855, in preference to Ento- 

 moplitliora proposed by Presenilis in 1856. Moreover, Mr. Thaxter concludes that the 

 fungus described above is identical with one described as Entomoplitliora grylli, by 

 Fresenius, in 1856. Specimens of this species were distributed in 1885 by Dr. Farlow, 

 in Ellis' North American Fungi, No. 1401. Our species thus appeared in Mr. Thaxter's 

 paper under the name of Empusa grylli (Fres.) Nowakowski. 



