Johnson — On Bothrodendron { Cyclostigma) kiltorkense. 503 



Ehode's drawing shows (ojo. cit., pi. v, figs. 4 and 5) a large piece of 

 flattened stem, with the leaf-scars indicated in one part, and in another, 

 where the carbonaceoiis incrustation has disappeared, the deeper-seated 

 Kuorria- stage. The illustration is more correct than tlie interpretation of it. 

 Rhode shows the pariohnos streaks, but describes them as the impressions 

 made by the linear leaves themselves pressed against the stem surface.' 

 Rhode's publication is noteworthy in that not a single fossil he describes in 

 it is named. Bothrodendron is a " schuppenartige Pflanze." 



J. B. Jukes, the Director of the Greological Survey of Ireland, had also 

 had Bothrodendron before him, and in 1855 made a sketch of an exposed 

 bed of plants in the Old Red Sandstone in a quarry at Tallowbridge near 

 Waterford. This sketch appears (as fig. 3, p. 17) in the Explanations to 

 Sheets 176 and 177 (1861) of the Greological Survey of Ireland, and shows 

 clearly that his " large linear plants " (5 feet long, and 4 to 5 inches wide) 

 were really Bothrodendron (8). 



Fia. 1. — Piece of stem of Lycopodites pinastroides showing leaf-scars. (Copy.) 



In the course of his reply Brongufeirt suggested comparison of the 

 Kiltorcan plants with those from the beds of Saalfeld in Thiiringen, since 

 they were regarded as Devonian. Richter and linger had, he stated at 

 the time he wrote, given a list only of those plants, accompanied by the 

 statement that they were nearly all new to science. It is interesting now to 

 read the detailed illustrated account which appeared in the Transactions of 

 the Vienna Academy of Sciences in 1856 (9). Unger was responsible for the 

 botanical part of the report on the Saalfeld discoveries. Eiehter collected tlie 

 specimens, drew them, and sent his drawings to Unger, who drew his 

 descriptions and conclusions from Richter's drawings without, in many cases, 

 ever seeing the original specimens. One plant so described is called 

 Lycopodites ^miasiroides, R. and U., text-figure 1 (op. cit., pi. x, fig. 9). As 



' The name Lepidodeudron owes its origin to a similar mistake. 



