358 



FILICALES 



[CH. 



of another Rhaetic species is shown in fig. 265, E. Schenk 

 figures an interesting series of fronds of L. Goepperti in diflferent 

 stages of growth'; one of the younger leaves is seen in fig. 265, D. 

 An examination of Rhaetic specimens of Laccopteris in the 

 Bergakademie of Berlin convinced me of the correctness of the 

 published descriptions of the sori. 



Fig. 265. A. Matonidium Wiesneri. (Slightly enlarged.) 



B. Marattiopsis marantacea. (Slightly enlarged.) 



C. Gleichenites gracilis. (Slightly enlarged.) 



D. Laccopteris Goepperti. (Slightly reduced.) 



E. L. Mnensteri. (Enlarged.) 



(A, after Kraaser ; B, C, after Leuthardt ; D, E, after Schenk.) 



Laccopteris polypodioides (Brongniart). 



278, A. 



Figs. 266—268; 



1828. Phlehopteris polypodioides-, Brongniart, Hist. veg. foss. 



PI. L.x.x.xin. fig. 1. 

 ^ P.propinqita, ibid. Pis. cxxxii. fig. 1, cxxxill. fig. 2. 

 ' Schenk (67) A. Pis. xxiii. xxiv. 

 ' For a more complete list, see Seward (00) p. 78. 



p. 372, 



