190 REPORT OF NATIONAL MUSEUM, 1892. 



It forms Monograph xvn of the U. S. Geological Survey. The larger 

 part of the type specimens upon which it is based is now the property 

 of the Museum. Of these not now here, many are in the lately donated 

 collection of Mr. R. D. Lacoe and will be brought here shortly. A few 

 of the types are in the Museum of the University of Kansas, but by 

 the kindness of the chancellor. Prof. F. H. Snow, duplicates, in some 

 cases better than the originals, have been donated, so that the Museum 

 now has probably the most complete collection extant representing this 

 flora. 



Prof. William M. Fontaine, of the University of Virginia, has worked 

 up a small but very interesting collection of plants from the Kootanie 

 beds at Great Falls, Mont. Several species and varieties are found 

 to be new, and the whole collection has been described and discussed 

 in an illustrated paper which is about to be published in the u Proceed- 

 ings of the National Museum." 



Several exceptionally tine specimens of a gigantic fossil alga (Nema- 

 tophyton crassum), obtained by Mr. Charles S. Prosser, at Skunnemunk 

 Mountain, near Monroe, Orange County, N. Y., have been made the 

 basis of a special study by Prof. 1). P. Penhallow, of McGill University, 

 Montreal, Canada. His paper, illustrated by a number of photomicro- 

 graphs, is also about to be published in the " Proceedings of the 

 National Museum." 



In Lesquereux's Tertiary Flora (p. 70, PI. lxiii, Figs. 1, Id) there 

 was described and figured a peculiar silicitied fossil plant from near 

 Golden, Colo., under the name of Zamiostrobus mirabilis. This speci- 

 men, No. 100 of the catalogue of fossil plants in the National Museum, 

 was, by request, loaned to H. Graf zu Solms-Laubach. professor of bot- 

 any in the University of Strasburg, Germany, who was making a 

 special study of all the fossil cycadean stems and fruits of the world. 

 He had several large thin sections cut from the specimen and gave it a 

 thorough microscopical study, which resulted in his changing the name 

 to Cycadeoidea pamiostrobus. The specimen has been returned with 

 several microscopical preparations. 



In addition to the Lacoe collection, about 25,000 specimens have been 

 added to the collection of the department during the year, making a 

 total increase of about 125,000 specimens. 



The last catalogue entry lor June, 1891, is 3,503, and for June, 1892, is 3,598, an 

 increase of 95 entries. 



