PLANTS. 333 



Geol. foren. Stockholm Forhandl. bd. i. pp. 203, 204, fig. 1, 

 pi. xviii. 

 The specimen figured comes from near Billesholm. No name is given. 



Etheridge, B,., Jan. Note on the further Discovery of a Species of 

 Poihocites in the Lower Carboniferous Rocks near West Calder. 

 Trans. Bot. Soc. Edin. vol. xii. pp. 151, 152. 

 Describes the fossil, and distinguishes it from the species already- 

 known by the flowers being arranged on the spadix in six rows instead 

 of nine or ten. He suggests the name P. Patersoni for it. W. C. 



. On a new Locality for Poihocites. Trans. Bot. Soc. Edin. 



vol. xii. pp. 162, 163. 

 A specimen of P. Patersoni found at Bamton, near Edinburgh. 



Ettlngshausen, Prof. C. von. Zur Entwickelungsgeschichte der 



Vegetation der Erde. [History of the development of the vegetation 



of the earth.] Sitzungsb. k. Ak. Wiss. math.-nat. classe, Abth. i. 



Bd. Ixix. Heft 3, pp. 219-236. 



Considering the present vegetation of the earth as merely a stage in 



the development of a previously existing flora, the author points to the 



Tertiary flora as already containing the precursors of recent vegetation. 



Notices that here were mixed up, e.g. at Radoboj (L. Miocene), types 



which now characterize different continents, and, again, that the Tertiary 



flora throughout the world was essentially the same, containing in it 



the elements of all the floras. The present floras retain traces of this 



admixture; e.g. that of Japan has many analogies with that of the 



southern parts of the United States. In the second part are lists of 



genera in the European Miocene characteristic of the floras respectively 



of New HoUand, Cape of Good Hope, India, China and Japan, Asiatic 



steppes, Mediterranean countries, tropical S. America, Mexico, W. 



Indies, &c. ' E. B. T. 



. Die Florenelemente in der Elreideflora. [Plant-differentiation 



in the Cretaceous flora.] Sitzungsb. k. Ak. Wiss., math.-nat. CI. 

 Abth. i. Bd. Ixix. Heft 5, pp. 510-518. 



The earlier Cretaceous flora, e.g. of Niederschona (Cenomanian), 

 contains forms of a rather more tropical character than the U. Creta- 

 ceous ; certain ferns, cycads, palms, the genera Prenelopsis and Eolirion 

 are peculiar to the earlier stage, while Sequoia, Pinus, Popuhis, &c. 

 occur in both. The U. Cretaceous flora is more allied to the Tertiary, 

 containing a mixture of temperate with tropical forms, e.g. the genera 

 QuercuSf Fagus, Salioc^ Acer, Juglans, &c. It is held that the Tertiary 

 flora is directly descended from the Cretaceous. The present grouping 

 of plants (flora-elements) is foreshadowed, e.g. Brazil forms hy Sahertia, 

 California by S&fuoia, China and Japan by Olyptostrohus, Cunninghamia, 

 Torreya, Salishuria, and Cinnamomum, and Australia by Grevillea, 

 Banksia, Dryandra, &c. A table of the natural orders and chief 

 genera which occur in the lower and upper horizons is added, with 

 their present habitat on the earth. E. B. T. 



