155 



PLANTS FROM ALASKA. 



FMlm.. PTERIDOPHYTA. (Ferns au.! Fen. 



Allies). 



Order FILICALES (Ferns). 



Family CYATHEAC'E.E. 



Genus DICKSONLV L'll.'riti«>i-. 



DicKsoxiA Sai-oktana 11(mt. 



PI XXXIX, Fiij:.s. \,-2. 



Ostsibiricns u.ul .1. A.nurhindcs), p. M". I'L n^'^' "-- '• ' ' ' 

 fig^- '•'*'•-' ^- . Ti Tp.n,i..reux- Proe U.S.Nat.Mus.,Vol.XI, 



p -V^ Cat U. S. Nat. Mus., No. 243.5. 

 On -v suvtll fragment of rock collected by Mr. Woolfe there ;s an 

 • n^ a ^e n tlv^ agrees well with Dicksonia Saportana as deternnned 



;:Ct1t:m ;;: ^uiSsic of BiUena. Indeed, ;n ^- .^^ ^^^^ ^ ; 

 n.uiles and in the rather uncommon nervation this fossil i. exacth 1 ke 



p nt;it 1 t ^ma with a number of ultimate ones, in which the termina- 

 tfoi a e wanting. Most of the pinnules are more or less lacerated, and 

 :^;:^:; ca^ Les,uereux to make an ----^^•— ;;,^ 

 the plant. He regarded it as Aspler^m ^^^^^-^T^^ ^^ ^lyn.e 

 pinnules, however, have no resemblance to this plant. Onl. 



specimen^^^^uncl^ 1, gives the fragment, and Fig. 2 a pinnule mag- 



nified. 



Family POLYPODIACE^. 



Genus ONYCHIOPSIS Yokoyama. 



Onvcuiopsis psilotoides (Stokes & Webb) Ward n. con^b. 



PL XXXIX, Figs. 3-6. 



18^4 Hymenovteris psitotoides Stokes & Webb: Trans. Geol. Soc. London, 2d ser.,. 



Sussex [revised edition], p. 5.5. 

 1836. CheilantUtes Mantemi (Brongn.) GopP-^ ^Y^t- ^'^- ^^'«^" ' 



p. 23L 



