26 Journal of Mycology [Vol. 13' 



This host was determined from fragments by John Donnell 

 Smith, who expresses some doubt as to the correctness of the spe- 

 cific name. With the exception of two species of Aecidium from 

 South America, described by P. Hennings, this is the only rust re- 

 ported on a host belonging to this family, StercuHaceae, or any 

 closely related family. No other spore structures being present 

 the species is described as Uredo. The thickened apex of the 

 spores, the intermixed paraphyses. and the gross appearance of 

 the sori indicate that its relationship is with the Ravcneliatae. 



The name is to honor Sn. Manuel Estrada Cabrera, Presi- 

 dent of Guatemala, patron of education and applied science. 



40. UREDO TRIXITIS Kern & Kellerm. sp. nov. 



II. Uredinia hypophyllous, scattered, small, round, 0.3-0.5 

 mm. across, soon naked, becoming somewhat pulverulent, dark 

 chestnut brown, ruptured epidermis conspicuous ; without 

 peridium or praphyses ; urediniospores broadly ellipsoid, some- 

 times somewhat narrowed below, 19-24x25-30/1.. wall light 

 chestnut-brown, medium thick (2-3 /t), sparsely and rather in- 

 conspicuously echinulate. pores distinct, 2, opposite. 



On Trixis frutescens P. Br. (host no. 5204), San Lucas, De- 

 part. Solola, Feb. 15, 1906, no. 5432. 



This host was determined by J. M. Greenman and belongs to 

 a section of the Carduaccae which does not include any other 

 genera known to bear rusts. 



THE LEPIOTAS OF SWEDEN. 



II. C. BEARDSLEE. 



The following notes on the species of Lepiota collected in 

 Sweden by Mr. C. G. Lloyd and the writer during the summer 

 of '05 may be of interest in connection with the papers upon this 

 genus which are appearing in the Journal. 



The numlx^r of species collected was not large, probably 

 partly at least because work was necessarily stopped the first 

 week of September. Doubtless other species might have been 

 found in the same collecting grounds if work had continued a 

 few weeks longer. The species detected were six in number. 

 L. procera, naucina, rhacodes, cristata, metulaespora. and amian- 

 thina. Of Lepiota procer little need be said. It was found in 

 the same surroundings in which it would have appeared in the 

 United States and agreed with our plant in every detail. There 

 is, however, food for reflection in the fact that this fine species 

 which lends itself so well to description and illustration that it 

 is easily recognized, even by the amateur, has been reported from 

 so manv stations and is known to have so wide a distribution- 



