On the Cretaceous Flora of Paissian Sakhalin. ot 



from Bohemia, recorded by Hollick also from Chappaquidick in 

 New England, together with true Mars ilea. The last locality ap- 

 peared donbtfnl to Hollick himself, for the state of preservation 

 was too poor. The resemblance of our species, especially with 

 the typical form in the Cenomanian, greatly emphasizes the age 

 of the bed containinfr it in Sakhalin. 



Many other ferns now in our collection in Tokyo, too badly 

 preserved for identification, contain among them some species of 

 Gleichenia, segments of ferns resembhng Sphenopteris Miertschingii 

 Hr.,^^ a soriferous frond, resembling those of Tliyrsopterls capsuUfera 

 Velen.'^ (Onychiopsis capsuUfera Nat.) The study of the whole 

 material now lying in Petrograd, will perhaps add to the present 

 list about fifteen other species. 



Cycadales. 

 11. Cycas a£f. Steenstrupii Heee. 



1882. Heee, Die fossile Flora Grönlands, part I., p. 40, pi. V, f. la, lb. 

 1907. Pseudocycas Steenstnqni, Nathoest, Paleobotanisehe Mitteilungen, No. 

 1, p. 8, pi. II, f. 10, 11. 



Localities : Near Cape Tangi and in some other places, 

 always in the Gyliakian. 



Our specimens of Cycas are very probably identical with the 

 Cenomanian species of Greenland. Zamites horealis He.'^^ of Kome, 

 which is very similar in form, has 4 veins running along each 

 segment. Though Prof. Nathokst'' has expressed doubt about 

 the position of C. Steenstrupii in the true Cycas, on account of 



1) Heek (1868), p. 87, pi. XLV, f. 9. 



2) Velenotsky (1888), p. 10, pi. I, f. C-12. 



3) Heee (1874 b), p. 6G, pi. Xn% f. 13, 14; XV, f. 1, 2; id. (1882), p. 13. 



4) Nathoest (1907). 



