68 Rhodora [March 



three months. Whether or not fusion in pairs oecurs tit the time of 

 germination, as we shouhl expect, it has been so far impossible to 

 determine, owing to the (Uffieuky of germinating the zygospores. 



The formation of the azygospores in Empusa was found to present 

 conditions quite different from those described by Vuillemin for 

 Entomophthora gleospora. In the case of Empusa the entire contents 

 of the hyphal body, including all of the nuclei, which may number 

 over 40, pass into an amj^uUa which is cut off, forming the azygospore. 

 No further changes take place in these nuclei so far as has been ob- 

 served. The writer offers the suggestion that this structure is in the 

 nature of a chlamydosj^ore, a view which is further supported by the 

 fact that an encysted hyphal body, as a means of tiding over the winter, 

 may frequently be substituted for the usual azygospore. 



The cytological conditions show that Entomophthora is a more 

 highly developed genus than Empusa. The general results here 

 described bring these genera into complete accord with the conditions 

 known in other Phycomycetes. The complete paper presenting in 

 full the evidence for the statements here made is now in preparation. 



Harvard University. 



A NEW Station for Asplenium ebe\oii)es. — Just outside the 

 town of Salisbury, Vermont, there is, a few feet from the roadside, an 

 open grove of trees, surmounting an out-cropping ledge of limestone. 

 On this ledge I found Asplenium eheneum and Camptosorus rhizophyl- 

 lus in abundance, but search failed to discover Asplenium ehenoides 

 among them. About fifty feet away, however, in the open pasture 

 the limestone again jutted out, and here I found a large plant of A. 

 cbenoides, from which a frond was sent to the Gray Herbarium where 

 the identification was confirmed. A smaller plant some five feet 

 away and still a third, very small and just assuming shape, were 

 found. A. eheneum grew profusely upon this rock, but I found only 

 a few inferior plants of the walking-leaf. — Anna W. Smith, West 

 Brattleboro, Vermont. 



[It is believed that the locality, here reported by Miss Smith, is by a few 

 miles the most northern station for A. ebenoides as yet recorded, at lea-st in 

 New Englanil. - Ed.] 



Vol. S. no. ,%', indwling pageft 25-Ji8, was issued February 2(!. 1906 



