Palaeontologie. — Eumycetes. 121 



mine the horizon exactl3^ but they indicate that the zone is higher 

 than the Middle Goal Measures. The principal specimens were Cala- 

 miteSj Calamocladus, Pecopteris, several species, P. oreopteridia being 

 particularly plentiful; Neuropteris rarinervis] leaf}^ branches oi Lepi 

 dodendron\ a Single leaf of Cordaites. M. C. Stopes 



Lane, G. F. and T. Saunders. Oolitic Plant Remains in 

 Yorkshire. (Naturalist. 636. p. 15—16. 1910.) 



Further specimens are recorded from the iVIarske Quarry, 

 bringing the number of species identified from the place up to 

 thirty eight. Nilssonia schaiunbergensis, Cycadites sp.? Cladophlebis 

 haiburnensis, C. loliifolia, Todites William sonia, Coniopteris hymeno- 

 phylloides and Taxites zamoides are specially mentioned. In this In- 

 ferior Oolite deposit, some of the species are considered by the 

 authors to be the same as those described from the Wealden. If 

 true, the point is an interesting one, but no illustrations are given. 



M. C. Stopes. 



Scott, D. H. and A. J. Maslen. On Mesoxylon, a new Genus 

 of Cordaitales. Preliminary note. (Annais of Botany. XXIV. 

 p. 236-239. 1910.) 



The new genus Mesoxylon is established from petrified stems 

 of Lower Goal Measure age, from Lancashire. The genus com- 

 bines some of the characters of both Poroxylon and Cordaites, and 

 one of the species has been already described under the provisio- 

 nal name Poroxylon Sutcliffii, while others have been referred to as 

 Cordaites. The generic definition mentions the large discoid pith; 

 dense wood with uniseriate meduUary rays; double leaf traces divi- 

 ding further in the cortex; centripetal xylem in the stem; scleren- 

 chymatous bands in the cortex; wood of Coj'daiteslike structure 

 with most secondary tracheids with multiseriate bordered pits on 

 the radial walls. Five species are described viz. M. Sutcliffii Scott. 

 M. poroxyloides sp. nov., M. uiultirame sp. nov., M. Lomaxii sp. 

 nov., M. platypodium sp. nov. The specimens form a link in the 

 series of stems whose structures tends to connect Pteridosperms 

 and Gymnosperms. The füll paper is in course of preparation. 



M. G. Stopes. 



Ferdinandsen, C, Fungi terrestres from North-east Green- 

 land, collected by th e „ Da n roark-Exp." (Meddelelser om 

 Grönland. XLIII. p. 137—145. ^with 1 col. tab. Gopenhagen 1910.) 



The Said expedition brought back about 20 larger fungi, among 

 those 10 Agaricaceae and 2 Gasteromycetes were definable. A new 

 species is described and delineated; Calvatia arctica with a verj^ cha- 

 racteristic external appearance, not unlike Scleroderma aurantium 

 (Vaill.) Pers. and with microscopic characters pointing towards Cal- 

 vatia cyathiformis (Bosc.j Morg. 



Lycoperdon favosum Oudemans Beih. Bot. Gentralbl., 1902 p. 4 

 (extra) not (Rostk.) Bonord. Bot. Zeit. 1857 p. 595 should be called 

 Lycoperdon Ondemansii. J. Lind (Gopenhagen). 



Ferdinandsen, C. and 0. Winge. Fungi from Prof. War- 

 ming's expedition to Venezuela and the Westindies. 



