THE FERX BULLETIN 



101 



specimens are checked pretty clearly shows the Boulder 

 Fern to be more commonly collected in the mountains 

 than in open country in this state, thus upholding Pro- 

 fessor Hill's contentions as to its comparative rarity in 

 the more level country towards Lake Erie. 

 — Carnegie Museum, Aug. 19, 1910. 



ASPLENIUM GLENNIEI. 



By Willard N. Clute. 

 One of the rarest ferns in the United States, 

 though not in the world is that species named by 

 Baker Aspleuium Glenniei. It is not uncommon in 

 Mexico, but its only record from our territory is that 

 reported by J. G. Lemmon who collected it in Con- 

 servatory Canyon in the Huachuca Mountains of Ari- 

 zona in 1882. The fern has never been seen since in 

 that region though frequently searched for but Ari- 

 zona is a big state and the species may be growing in 

 abundance in any one of half a hundred unexplored 

 canyons. 



Lemmon sent his specimens to D. C. Eaton for 

 identification and he called them a variety of Asplen- 

 iutn fontauuin, a fern not uncommon in the Old 

 World. They were distributed under this name but 

 later were recognized as belonging to the Mexican 

 species and now appear in our catalogues under their 

 proper name. Fronds from a plant collected in Mexi- 

 co by C. G. Pringle are reproduced in our illustration 

 and we also republish, from the fifth volume of Fern 

 Bulletin, a drawing of the allied A. fontauuin for com- 

 parison. With the latter is a pinna from a frond of a 

 variety often considered a species as A. Halleri. 



Those who consult the check-lists of Xorth Ameri- 

 can ferns, will find A. fontanuni also listed as a mem- 

 ber of our fern flora, but no botanist has ever seen and 



