— 15— 



two-lipped the specimens belong to Hymenophyllutn ; if 

 not, they are to be referred to Trichomanes. 



The illustration represents a curious round-leaved 

 Trichomanes from New Zealand, which is remarkable for 

 being the only species of filmy fern with fronds four 

 cells thick. In the herbarium it is quite stiff and firm in 

 comparison with the others of its kin. One has only to 

 compare this illustration with the one of the round-leaved 

 maidenhair published in this magazine for April, 1905, 

 to see how easily nature is able to vary the species with 

 slight changes in the fruiting parts of the frond. 



In the two genena of the Hymenophyllacese there are 

 no less than four hundred and fifty species, but very 

 few of them stray far beyond tropical regions. Four 

 species are found in the United States, and a few others 

 reach Great Britain. On the other side of the equator 

 some forms extend to New Zealand as we have intimated. 



ASPLENIUM PINNATIFIDUM IN CONNECTICUT. So far 



as known Asplenium pinnatiiidum is of rare occurrence 

 in New England; in fact its sole claim to being an in- 

 habitant of that part of the world rests upon a single 

 specimen from Sharon, Connecticut, reported by F. W. 

 Kobbe. During the past summer, however, Mr. H. C. 

 Bigelow of New Britain, Connecticut, was fortunate 

 enough to find two specimens of this species near New 

 Britain. This second record for New England extends 

 the range northeastward some fifty miles. The fern was 

 collected on the ridge of trap rock that runs parallel to 

 the valley of the Connecticut river, and it is quite likely 

 that further search will disclose other stations for it. 

 The note regarding this find published in Rhodora in 

 anticipation of the present note was incorrect in sev- 

 eral particulars, possibly due to haste in getting into 

 print. 



