41 



which only iinpcifect ni'itciial is in existence, sonic indeed that 

 Mettenius would certainly never have published on such meager 

 data. Mettenius' collection is now incorporated with the general 

 collection of ferns at Berlin, which is next to Kcwthe most exten- 

 sive in the world. 



Other centers of interesting fern collections in Europe are those 

 of Copenhagen with Liebmann's Mexican species; Munich, with 

 Martius' Brazilian series ; Leipzig, with Kunze's collection ; and 

 lastly Madrid with the collection of Cavanilles. Before our fern 

 system has been completed all these and the others discussed in 

 this series of papers must be studied comparatively from the 

 standpoint of t)'pe specimens. 



OTHER FREAKS OF PEAS 



By Ida Clkndknin 



In the November number of Torreya, Dr. A. J. Grout speaks 

 of the " queer freaks " one comes across in our large city schools 

 in handling the material used by the botany classes. I want to 

 describe one of these that has recently come to my notice, though 

 it may not be so unusual as the one described by Dr. Grout. 



— t- 



Fig. a. Young seedling, showing hud in axil of cotyledon. </, bud in axil of 



cotyledon ; <•, cotyledon ; /, plumule ; r, radicle ; s. c, scar of cotyledon. 



Fig. B. Young seedling with plumule cut off; shoots from buds in axils of 

 cotyledons. 



