336 PALEONTOLOGY. 



Lesqtjerettx, Prof. Leo. Contributions to the Fossil Flora of the 

 Western Territories. Part I. The Cretaceous Flora. Rep. U.S. 

 Geol. Surv. Territories, vol. vi. pp. 136, 30 plates. 

 Gives a history of the discovery and literature of the Cretaceous flora 

 of the Dakota group, and of the geographical and stratigraphical 

 distribution of the beds. An examination of the genera and species 

 which compose the flora shows that it is clearly separated from earlier 

 floras, and that, though its facies is that of a Tertiary vegetation, yet it 

 has no relation to the flora of the L. Tertiary of N. America. There 

 are not sufficient plant-remains known from the European Cretaceous 

 deposits to permit a comparison. Describes at length and figures the 

 plant-remains, almost entirely consisting of leaves, which he refers to 

 72 genera and 130 species. The Cryptogams are represented by one 

 Alga and six Filices (referred to as many genera), seven Gymnosperms 

 (one being a Cycad leaf), three Monocotyledons, and the remainder Di- 

 cotyledons, except ten incertce seclis. W. C. 



. The Lignitic Formation and its Fossil Flora. Ann. Rep. U. 



S. Geol. Surv. Territories, pp. 365-425 (see Hatden, p. 118). 

 Gives the position, ranging from Eocene to U. Miocene, of the 

 various localities where the lignitic formation occurs, and argues that 

 the beds are Tertiary and not Cretaceous, maintaining that the fossil 

 flora has precedence over the fauna in determining the age of the 

 formation. In four tables he gives the distribution of the flora in 

 relation to the four periods which they seem to represent. Then 

 follows a detailed description of the species added to the known flora in 

 this report, of which 60 are new, and, lastly, an inquiry into the light 

 thrown by this ancient flora, now amounting to 360 species, on the 

 climate of the period. The lower period had a temperature between 

 that of Ohio and S. Florida ; and it gradually decreased till the fourth 

 period was similar to that of the Black Mountains of Carolina. W. C. 



. Land-plants in L. Silurian and Lignitic formations of Rocky 



Mountains. See p. 123. 

 M'CoT, Prof. Fred. Podozamites and Lejndodendron, see p. 310. 

 Maeratt, F. M. Calamites and their alliances, a continuation of a 

 paper on the Fossil Plants in the Liverpool Free Public Museum, 

 collected by the Rev. H. H. Higgins, and known as the Ravenhead 

 Collection, pp. 3. Appended to Proc. Geol. Soc. Liverpool, sess. 15. 

 A catalogue of 16 species — 5 referred to Calamites, 5 to Calamo- 

 cladus, 1 to Bornia, 2 to SpJienopliyllum, and 3 to Annularia. Calamo- 

 cladus tenuis appears to be considered a new species ; but no description 

 is given. W. C. 



MouRLON. [Note of the discovery of a gigantic fossil tree in the 

 Maestricht series at Canne, in the arrondissement of Tongres (Gd.- 

 Duchy of Limburg).] Proc. Verb. Soc. Mai. Belg. t. iii. pp. Ixii, 

 Ixiii. 

 Referred doubtfully to Cupressinoxylon ucranicum. 



