18 American Fern Journal 



few ferns of Korea that he has had an opportunity of 

 studying somewhat in detail thus far (July 25th) this 

 year (1913). It is hoped that at a later date a complete 

 description of the species studied, supplemented with 

 sketches, will be sent in to the American Fern Journal. 

 It seems to the writer that the Herbarium of the Society 

 might well have for its object the gathering of the com- 

 plete fern flora of the world for comparative study. 

 Therefore the writer will forward to the Curator of the 

 Herbarium a few suites of specimens such as he has 

 collected sometime before the end of this year. The 

 nomenclature follows Britton and Brown, edition of 

 1896. 



The species collected to date are as follows — 



1. Osmunda Claytoniana, var. (?). 



2. Osmunda sp.; this species seems to be a transition 

 form between 0. regalis and 0. cinnamomea. 



3. Onoclea sp.; this Onoclea resembles 0. sensibilis but 

 may be a distinct species. As the fertile fronds are not 

 ripe yet a complete study of the form must be made 

 a little later in the season. 



4. Dryopteris (Polystichurn) sp.; this form is near D. 

 Lonchitis and D. acrostichoides, fronds less than one 

 foot long and rooting at the tips to form new plants. 



5. Dryopteris {Polystichurn) sp.; this species is near D. 

 acrostichoides. The frond is ternately divided, however, 

 and each of the divisions is once pinnate. 



6. Phegopteris Dryopteris, var. (?) ; this fern is close to 

 P. Dryopteris, but it differs slightly from the form as 

 described in Britton and Brown. 



7. Camptosorus sp.; Britton and Brown note that there 

 are only two known species of this genus, one in North 

 America and the other in northern Asia. The species 

 observed in Korea is certainly not Camptosorus rhizo- 

 phyllus, so it is very likely the other of the two known 



