287 



Moen. 



Piants have likewise bcen found in gytje in Graarygfald on Moens 

 Klint, amongst which pollen of Picea excelsa, which in connexion with the 

 stratigraphical place of the deposit indicates that the gytje is interglacial (p. 246). 



Remarks on the interglacial Flora and Fauna. 



(Bemærkninger om den interglaciale Flora og Fauna.) 



If \ve consider the flora lists given in the foregoing and on pp. 257—265, 

 we see, that some of the localities mentioned under the eominon designa- 

 tion »interglacial deposits« only contain arctic or subarctic piants, all of 

 which oeeur in our lateglacial and postglacial deposits. The reasons why I 

 nevertheless consider these deposits, which are all loose, free masses, as inter- 

 glacial are, partly, that I do not strictly follow the definition of interglacial 

 deposits given by Weber (1890, p. 484), partly, that the occurrence of these 

 beds in the most recent diluvium at the place make it most reasonable to sup- 

 pose, that they are the remains of interglacial beds which have undergone 

 destrucfion. We have indeed seen, that several of the above-mentioned de- 

 posits (c. g. Ejstrup, and Brdrup) contain arctic or subarctic piants in their 

 lowermost and uppermost lavers, whilst the intermediate lavers have a tem- 

 perate flora. I am therefore disposed to consider the loose masses as frag- 

 ments of the upper and lower layers of interglacial formations — a con- 

 clusion which seems to bc fnrther strengthened by the faet of their piaces 

 of discovery in the neigbourhood of intact deposits — , even if I must admit 

 that they might as well originate from a smaller oscillation of the iee-edge. 



If we turn now to the main mass of the above-mentioned interglacial 

 deposits, we see, that as already frequently remarked they are character- 

 ized by the occurrence of a number of piants: Picea, Carpinus, Brasenia, 

 Dulichium etc. which are not known from our postglacial bogs. The piants 

 mentioned belong in faet to those which are characteristic for the other 

 interglacial deposits in Middlc Europe. On the other band, the flora in the 

 preglacial, plant-containing clay at Tegelen (Cl. & El. Reid 1907 and 1908) has 

 a considerably older stamp. 



Some remarks on the above-noted species may naturally find a place here. 



Picea and Carpinus play a predominant role in these deposits. As often 

 remarked they are not known from postglacial bogs in Denmark whereas 

 both are found in the Litorina gytje of Kiel Bay (Weber, 1904, pp. 5, 24, 26 

 and 47). Only inconsiderable remains however are known from these post- 

 glacial layers, namely a twig with bark of Carpinus and a single pollen grain 

 of Picea, a find which as Weber also remarks says in faet nothing as to 

 how far the spruce has lived at Kiel at that period 1 ). 



v ) In a paper by H. O. Holst which has appearcd during the printing of this hook, 

 entitled: Postglaciala tidshestamningar (S. G. U., Ser. C, Nr. 216, 1909, p. 18) there 

 is mentioned the discovery of a few pollen grains of Picea from Kallsjo hog and 

 a hog at Ronneby — both in Scania — and it is also stated that O. Gertz 

 has found the nuts of Carpinus in Sote bog on the sheet Trelleborg, at a depth 

 of 1.25 — 1.50 m. in a yellowish gytje under the peat. 



From these and Weber's discoveries at Kiel Holst draws the conclusion, 



