238 Scientific Intelligence. 



back of Nuttall, West Virginia, the fern genus hitherto named 

 Adiantities includes the very different and pteridospermic 

 genus Aneimites, bearing small winged seeds terminally in the 

 position of leaflets. (The announcement that Lagenostoma Lo- 

 maxi is the seed of Lyginodendron was made by Oliver and 

 Scott, May 1, 1903.) g. r. w. 



14. On the Microsporangia of the Pteridospermea?, with 

 Remarks on their Relationship to Existing Group>s • by Robert 

 Kidsto^t. Phil. Trans. Roy. Soc. London, 190(5, Ser. B, Vol. 

 cxcviii, pp. 413-445, pis. 25-28. — The primitive cycad-like stems 

 called by Williamson Lyginodendron Oldhami 'am .-and the cycad- 

 like seeds called by him Lagenostoma Lornaxi have already 

 been found to belong to the fern-like foliage from the Westpha- 

 lian originally described in 1829, by Brongniart, under the name 

 Sphenopteris Honinghausi. In the paper under review, Kidston 

 now completes a remarkable chain of evidence by determining 

 that the well known and once supposedly Marattiaceous . fern 

 fructifications known as Crossotheca are the accompanying 

 microsporangiate fruits. Crossotheca Honinghausi is here illus- 

 trated, as well as a new species Crossotheca Hitghesiana, the 

 specimens being carbonized impressions in nodules derived from 

 the "10 feet ironstone measures" forming the roof of the "thick 

 coal" of the Westphalian series of Cosely, near Dudley. The 

 sori, synangia, and triradiately marked microspores of large size 

 and decidedl3 r fern-like rather than pollinial structure, are quite 

 clearly indicated, agreeing closely with the fine series of Cros- 

 sothecas from the clay nodules from the Permian of Mazon 

 Creek, Illinois, described by Sellards (this Journal, vol. xiv, 

 September, 1902). g. r. w. 



15. Beitrage zur Flora der unteren Kreide Quedlinburgs 

 Teil I. — Die Gattung Hausmannia Bunker tend einige seltenere 

 Pflanzenreste ; von P. B. Riciiter. Leipzig, 1906 (31 pages, 4to, 

 with 7 heliot3 r pe plates). — The Neocomian plant impressions of 

 the Quedlinburg region discovered by Professor Richter are of 

 unusually fine preservation and very numerous. As a fine 

 example of a transition flora of Middle and Upper Neocomian 

 age these plants promise much of interest, 80 per cent being 

 ferns, 6 per cent conifers, and about 3 per cent cycads. Otoza- 

 mites is not present and Pterophyllmn is rare. Baiera and 

 Ginkgo are absent, but Moriconia cyclotoxon, hitherto only 

 known from the Upper Cretaceous, is present. Forms definitely 

 referable to angiosperms fail. The fine examples of small fan- 

 shaped JDipteris-\ike and more or less netted-veined ferns of the 

 ancient, very generalized and important genus Hausmannia are 

 beautifully illustrated in the first instalment of this Quedlinburg 

 flora, the completion of which will be awaited with interest. 



G. R. W. 



1 6. Ueber Piety ophy Hum und Camptopteris spiaralis ; von 

 A. G. Nathorst. Kungl. Svenska Vetenskapsakad. Handl., 

 1906, Bd. xli, No. 5, pp. 5-24, with 4 text figures and V plates. — 



