332 Prof. Heer on the Fossil Flora of North Greenland. [Mar. 11, 



this splendid evergreen ripened its fruit so far north as the parallel of 

 70°. 



Seven out of the Disco species occur also at Atanekerdluk ; and eight 

 agree with those of the Lower Miocene of Europe. The age of the deposit 

 is accordingly well ascertained. 



The collection from Atanekerdluk contains 73 species, of which 25 are 

 new to Greenland. Some of these are known European forms, especially 

 Smilax grandifolia, which, at the Miocene epoch, occurred over the whole 

 of Europe. Of Sequoia Langsdorffii, as was to he expected, abundant evi- 

 dence has been accumulated, showing how favourable the conditions of 

 climate and soil were to its growth. 



Among the most interesting specimens are the flowers and fruit of a 

 chestnut, the latter in a very perfect condition. The discovery of these 

 proves to us that the deposits in which they are found were formed at dif- 

 ferent seasons, in spring as well as in autumn. 



The Miocene plants discovered in Greenland have now reached the number 

 of 137 species, and those of the Arctic Miocene Flora 194. Of the Green- 

 land species 46, or exactly one-third, agree with those of the Miocene 

 deposits of Europe. The determination of the age of the beds as Lower 

 Miocene has accordingly been confirmed. 



Four of the species agree with those of Bovey Tracey, among them 

 Sequoia Couttsice, the commonest tree in the latter locality. 



In concluding the first part of his paper, the author offers a resume of 

 the grounds on which the determinations of the species have been based. 



Seventeen species are represented by the leaves and organs of fructifica- 

 tion among the Greenland specimens. 



Ten species are only represented by leaves in Greenland ; but their organs 

 of fructification occur elsewhere. 



Seventeen species of those of which only leaves are found exhibit, how- 

 ever, such marked characteristics, that there can be no doubt about their 

 identification. 



Five Cryptogams have been satisfactorily recognized. 



Accordingly, though it must be allowed that the systematic position of 

 many of the plants from North Greenland is still uncertain, yet the con- 

 siderable number of absolutely identified species which can be produced 

 enables us to form a clear idea of the Miocene Flora of North Greenland. 



The second part of the paper contains the specific descriptions of the 

 various forms. 



The collection, consisting of some 300 specimens, has been deposited in 

 the British Museum. 



