. 



BULLETIN 



OF THE 



TORREY BOTANICAL CLUB. 



Vol. VII.] New York 



[No. 8. 



6^. Fern Notes. — In re-arranging the specimens in the "Daven- 

 port Herbarium," I noticed quite a number of examples of bifurca- 

 tion that it may be of interest to place on record. 



In Polypodium vidgare examples occur with bifid fronds and 

 segments. In P. Californicum and P.fakatuni no examples occur; 

 but in these two species the segments are frequently coarsely and 

 deeply serrate. 



In Notholaena Parryi an example occurs in which the stipe forks 

 midway and branches into a double frond. Similar examples of 

 'twin-fronds" occur in Camptosorus^ Asplenium Trichomanes^ and 

 Woods i a obtusa. 



In Cheilanthes Cooper ae one frond forks just above the second pair 

 of pinnae into two divisions nearly three inches long. 



Cheilanthes Clevelandii has several specimens of bifid fronds, and ■ 

 Pellaea atropurpiirea^ of bifid fronds and pinnae. 



Some sections of Pier is aquilina var. lanuginosa have bifid pinnae 

 and pinnules. 



Scolopendrium and Camptosorus especially delight in such mani- 

 festations ; the former exhibiting some deeply bifurcated fronds, and 

 the latter some curious freaks. Two examples of "twin-fronds," 

 exactly as described by Mr. Tweedy in the Bulletin, Vol. VIL p. 

 26, occur, and one in wlifch the long-attenuated apex bifurcates into 

 two long proliferous tips. Mrs. Barnes contributes some curious ab- 

 normal forms of this species from Onondaga Co., N. Y. 



Asplenimn ebeneuWy besides its proliferous fronds, A. Montanum 

 and A. firmiim^ all bifurcate niore or less deeply, as do also Aspidi- 

 UPH acrostichoides^ A. Thelypteris^ and A, N'oveboracense. 



In A, spinulosum and varieties, double-fronded, bifurcate and 

 crested forms occur, and also in Cystopteris fragilis and Dicksonia. 



Woodsia glabella has one example of a bifid frond, and in the 

 Botrychia all sorts of freaks occur — sterile sections transformed 

 into fertile, and vice versa; bifid stalks; and extra fertile spikes grow- 

 ing either out from the main stalk or from the axils of the sterile 

 divisions. 



The Herbarium is now in perfect order, with an " Index " for 

 reference. The collection contains nearly 600 mounted sheets, and 

 over 2,000 specimens, but is deficient in root specimens of the follow- 

 ing; Gymnogramme hispida^ Notholaena ferruginea, N. Hookeri^ N^ 

 nivea (of which I have some fragments collected on Lone Mountain, 

 New Mexico, early in June, t 880, by Wm, M. Cowr\\%), N. tenera^ 

 Cheilanthes Wrightii, C. Lindheimeri^ C. cucopoda^ Pellaea aspera, P. 

 pulchella, P.flexuosa and P, terni folia. Complete root specimens of 

 any of these are desired and solicited. 



Since the publication of my Catalogue, many new forms have 



