230 BULLETIN OF THE MUSEUM OF COMPARATIVE ZOOLOGY. 



which represents fifty species, mostly in finely preserved materials. 

 Among the species worth mentioning are Odontopteris cornuta, Callipte- 

 ridium iiuequale, Alethopteris ambigna, divers species of Stemmatopteris 

 and Gaulopteris, Lepidostrobus spectabilis, Lepidoph?/ll.um Maasjieldi, Spo- 

 rocystis and Lepidocystis species, Tceniophyllum decurrens, Rliabdocarpus 

 Mansjieldi, all peculiar to the locality, or not as yet found elsewhere, 

 and splendid and numerous specimens of the rare spikes of Macrostachia 

 infundibuliformis, Neuroj^teris cordata ? Brgt., or Cyclopteris trichovia- 

 noides ?, iV. heterophylla, Brgt., Pseiidopecopteris Pluchieti, and P. anceps ; 

 many specimens of Spiropteris, cii'cinnate branches of ferns (spirally 

 coiled inward in the process of unfolding), of Sigillaria monostigma, of 

 Artisia (decorticated stems of Cordaites), of Cordaianthus (their flowers), 

 of Cordaicarpus (their fruits), etc. As the Museum had not any spe- 

 cimens of that peculiar locality, these plants constitute an important 

 addition to the collection. 



With the materials obtained this year the Museum has now in fossil 

 plants : — 



1. From the Devonian, a series of specimens presented by Professor 

 J. W. Dawson and Mr. C T. Hartt from the measures of Canada, and 

 from England a number of very fine ones, presented by Sir Charles 

 Lyell. Among these is a splendid fruiting pinna of Archceopteris Hyber- 

 7iica. 



2. From the Carboniferous, a large number of the best specimens 

 found in the nodules of Mazon Creek, the shales of Morris, and other 

 localities of Illinois ; numerous and good specimens from the anthracite 

 basins of Rhode Island and of Pennsylvania ; fine materials from divers 

 localities of Ohio and Kentucky, presented by Mr. Anthony ; rare speci- 

 mens from the subconglomerate measures of Ohio and Tennessee ; and 

 the collection of Cannelton mentioned above. 



3. From the Cretaceous of the West the Museum has now an amount 

 of materials sufficiently representing the Dakota group. Fine and nu- 

 merous specimens can be spared for exchange. 



4. The Tertiai-y of this continent is insufficiently represented in the 

 Museum by a number of specimens presented by the Smithsonian Insti- 

 tution, and by a few sent by Rev. Arthur Lakes from Golden, Colorado. 

 There is, per contra, from Europe a splendid collection of Miocene 

 plants purchased from Professor Heer, of Zurich, and a number of un- 

 determined specimens from divers formations and localities, mixed with 

 animal remains, in the collection of Bronn. 



