CARBONIFEROUS LYCOPODS AXD SPHENOPHYLLS. 133 



II. Psilotites, Goldenberg, 1855. 1 



1855. Psilotites, Goldenberg (not Munster). Flora Sarcep. foss., 

 Heft. L, p. 13. 



Stem bifurcating. Leaves rudimentary, Sporangium three- 

 chambered, and sitting in the axil of the leaf. 



The specimen placed by Goldenberg in his genus, Psilotites 

 lithanthracis, from the Saarbriick basin, does not seem to possess 

 all the characters mentioned in the generic definition. 2 



The example which I referred to this genus under the name of 

 Psilotites unilateralist and which was presented to the Hunterian 

 Museum, Glasgow University, by Mr. Walter Burns, is equally 

 problematical in its affinities. It consists of three slender striated 

 stems each having on one side a longitudinally arranged row of 

 curious small rounded knobs. 



Till some distinct knowledge of the fruit of these obscure 

 fossils is obtained, their systematic position must remain very 

 doubtful. 



The Scotch specimen came from the Lower Coal Measures, 

 Baillieston, Lanarkshire. 



III. Traquairia, Carruthers ; 1872. 

 1872. Traquairia, Carruthers. Kept. Brit. Assoc, p. 126. 

 1880. Traquairia, Williamson. On the Organization of the 



Fossil Plants of the Coal Measures, Mem. X., Phil. 

 Trans., 1880, Part II., pp. 511-532; PL XVIIL, figs. 

 41, 42, 45, 46, 47; PI. XIX., figs. 40, 43, 44, 48, 49, 50; 

 PI. XXL, figs. (?)82, (1)83, (?)84, 85 (in part), 86, 87, 88. 

 1880. Lepidostrobus Traquairia, Williamson, Mem. X., I.e., p. 537. 



The curious little fossils that have been named Traquairia are 

 spherical organisms, with a thin structureless wall which is 

 produced into long warty, branching spines. 



1 The genus Psilotites was first employed by Miinster (Beiir. z. Petrefact- 

 enkunde, Heft!. V., p. 188, 1839-44). The plant, however, which formed 

 his type is now supposed to have been a macerated specimen of a conifer 

 {Schenk. Pie Fossilen PJlanzeiu, p. 57, 1888). The genus is now employed 

 under Goldenberg's definition. 



2 Goldenberg, I.e., PI. II., fig. 7. 



3 Annals Mag. Nat. Hist., June, 1886, p. 494, "On a new species of 

 Psilotites from the Lanarkshire Coal Field.''* 



