PLANTS. 307 



Lesquereux, Prof. L. On some new species of Fossil Plants from 

 the Lignitic formations. Bull. U. S. Geol. Surv. Terr. ser. 2, no. 5, 

 pp. 363-389. 



Describes the following new species from the Bitter Creek series, 

 Wyoming — Lemna? bullata, Fucus lignitiim^ Selaginella? falcata^ 

 Sequoia hiformis, Widdringtonia comjplanata, Laurus (Persea) jyrcestans. 

 Viburnum rotundifolium^ Trajja? microphylla, Rhus memhranaceit^ 

 Quercus competens, and Dryophyllum crenatum. In an appendix " On 

 the evidence afforded by the fossil plants of Point of Rocks in regard 

 to the Geological age of the Formation " this flora is compared with 

 the Miocene, Eocene, and Cretaceous. The balance of evidence is 

 slightly to the Miocene ; but many species show affinity to the Eocene, 

 and some to the Cretaceous. 32 more new species, from various 

 localities, are described, besides several previously known : sec Index 

 of Species. W. H. D. 



. New Species of Fossil Plants from the Cretaceous formation 



of the Dakota group. Bidl. U. S. Geol. Surv. Terr. ser. 2, no. 5, 

 pp. 391-400. Noticed in Geogr. Mag. vol. iii. pp. 152-155. 



Descriptions of the foUowiug new species — Sequoia condita, Tnolej^is?, 

 Myrica cretacea, Dryophyllum {Quercus) latifolium, D. salicifolium, 

 Populus aristolocMoides, Ficus distorta, Laurus protecefolia, Andromeda 

 acuminata, Ilea; strangulata, Aristolochites, Aralia tripartita, A. Sapor- 

 tana, A. concreta, A. semiorhicidata, A. Towneri, Hedera ScJiimjwri, 

 Ampelophyllum (gen. nov.) Jlrmum, A. attenuatum, Cissites Heerii, O. 

 acuminatus, Credneria'i microphylla, Protopliyllum ? trilobatum, and 

 Menisjiermites ovalis. Some of these, and other already known species 

 from this locality, are described at greater length, and figured in Ann. 

 Hep. U. S. Geol. Surv. Terr, for 1874, pp. 316-365. See below. 



W. H. D. 



. Ann. Rep. U. S. Geol. Surv. Territories, for 1874 (see Hay- 

 den, p. 134). 



On the Tertiary Flora of the North American Lignitic, considered as 

 Evidence of the Ago of the Formation, pp. 275-315. The review of 

 Palaeozoic and Mesozoic flora is similar to that in the Bulletin (sec 

 above). The discussion of the Lignitic flora is more extended. The 

 description of many of the species is repeated, with the addition of 

 Fistia corrugata and Ottelia Americana, both new, from Point of Hocks. 

 Concludes, but doubtfully, that the Lignitic is Eocene. 



A Ileview of the Cretaceous Flora of North America, pp. 316-365, 

 8 plates. Deals chiefly with the flora of the Dakota group, remarking 

 on the affinities of the species with those of other Cretaceous deposits 

 (Greenland and Europe), and describing, amongst others, the following 

 new species — Daphnogene cretacea, Iledera jflatanoidea, Menispcrmites 

 populif alius f M. cyclophyllus, Stercidia Uneariloba, and Protophyllum 

 Crednerioides. W. H. D. 



Ludwig, Rudolf. Fossile Pflanzen aus der Steinkohlenformation 

 im Lande der Don'schen Kosaken. [Carboniferous Plants from 



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