﻿Underwood : The ternate Species of Botrychium 527 



our own collection from near Tokyo, communicated by Dr. Mat- 

 sumura. In the Herb. California Academy of Science there is a 

 single sheet of this species. These include all the genuine B. ter- 

 natum I have seen, and they represent a well denned species totally 

 different from the many forms that have been referred to it by sub- s 

 sequent writers. No one, who holds any modern view of species, 

 who has seen genuine specimens of B. ternatum from Japan, could 

 hold for a minute that it was the same as the various species that 

 occur in North America, and would adopt at once Prantl's masterly 

 definition of this thin-leaved species with such a natural geographic 

 range. 



2. Botrychium matricariae (Schrank) Spreng. Syst. Veg. 4: 



23. 1827. 



Osmunda matricariae Schrank, Baier. Fl. 2: 419. 1789. 

 Botrychium rutaceum Swz. Schrader's Journ. 2 : III. 1801. 



5 : 62. 18 10. 



efolium A 



1843. 



This appears to be the second member of the group described 

 and it will be seen that it has been abundantly supplied with names, 

 each one of which has been used in reputable monographs. We 

 are indebted to Ascherson * for the elucidation of the synonymy. 

 The species was described from Central Europe where it appears 

 to have a somewhat widespread distribution. Numerous sheets of 

 this species from Europe occur in the European herbaria and 

 nearly all of the larger American collections possess a fairly rep- 

 resentative series. There are a few specimens from the Northern 

 United States and Canada which must be referred here ; among 

 these I would particularly mention a plant in our own herbarium 

 collected by Mr. Pringle in " Old meadows, Vermont, September 

 26, 1878," which agrees perfectly with the figures represented by 

 Luerssen,t in fact more closely than any of the European speci- 

 mens in our collection. A number of small specimens erroneously 

 distributed under the name of " Botrychium ternatum, sub-var. in- 

 termedium D. C. Eaton," probably belong here also. The exact 

 relation of this species to larger forms which are not clearly re- 



*Syn. Mitteleurop. FL I: 109. 1896. 

 f Rabenhorst's Krypt. Fl. 3 : 584. / 182. 



