On the CreioceoiLS Flora of Kussinii Snkli.'ilin. 'g 



I further consider as true Cretaceous, the peculiar flora of 

 Simonova^'^ in Sonth West Siberia, from the river Chulym, an- 

 nounced as Miocene by IIeee.'^ Many local floras of Amurland''' will 

 probably belong to the Laramie age or Uppor Cretaceous. 



But before a full revision of them is made we can not use 

 them for comparison. 



Later studies on the fossil flora of Sakhalin. 



The plant remains of Sakhalin^' appeared so very conspicuous 

 in the stratigraphy, that their study was taken up at the very 

 beginning of explorations in the island. They have been collected 

 by Schmidt at Cape Khoinju near Post Dui, by G lehn and Koep- 

 PEN at Mgach, and by Andkea at Nayassi and Sertunai. Besides, 

 Admiral Fukuhjelm has sent some of the fossils to Stockholm 

 without exact statement of the locality. All these collections were 

 treated of by Heee, in some of his papors,^^ especially in one large 

 monograph*'' which appeared in 1878, in which he describes seventy 

 four different forms. Of these five are Pteridophytse, two Cyca- 

 dales, one Ginkgo, four Coniferae and all the rest Angiospermae, 

 the materials being mostly from Mgach and Dui (Khoinju). During 

 these forty years, the work remained unrevised and was taken as 

 a standard work for all the Tertiary Arctic floras ; Heer' s views 

 expressed there have until now met with no objections. But now 

 it seems to me to contain many misleading determinations of 



1) Heeb (1878 b), p. 36. 



2) Even the famous savant of Arctic floras, Prof. Nathoest, has exi^ressecl, already in 1888. 

 p. 54, foot note, his suspicion about the Tertiary age of the Simonova flora, but said nothing what- 

 ever about that of Sakhalin. 



3) Heeb (1878 b), pp. 44-50 ; Koxstantow (1914). 



4) In the present paper I intend to imijly by the name "Island of Sakhalin" the entire 

 island in a geographical sense, while by the word "Sakhalin" only the Russian part. The 

 Japanese part will be called specially " Japanese Sakhalin." 



5) Heeb (1871 c) ; id. (1874 a) ; id. (1878 d). 



6) Heeb (1878 c). 



