14 ART. S. — M. YOKOYAMA I 



2. ANNÜLARIA STELLATA (Schloth.). 

 PI. IV. Figs. 5, 6. 



This species lias already been described from Yen-tai in the 

 preceding pages. 



A specimen shown in fig. 6 has two verticills preserved, both 

 consisting of at least 20 leaves which are 2 mm broad and more 

 than 15 mm long, with the apices broken off, but probably acute. 

 Fig. 5 represents an imperfect specimen probably belonging to 

 the same species. 



3. PECOPTERIS ARBORESCENS (Schloth.). 



PI. IV. Fig. 4. 



Pecopteris arbo'teicens Beongniakt, Hist. d. Végét. Foss., p, 310, pi. CI.I, 

 pi. cm., figs. 2, 3. Zeiller, Expl. d. 1. Carte Géol. d. 1. France, p. 81, pi. 

 CLXIX, fig. 4. 



Cyatlieites arhorescena Schenk, Richthofeii's China, vol. IV, p. 212, pi. 

 XLV, figs. 14-16, p. 229, pi. XLV, fig. 13. 



A single specimen. Although the venation is imperfectly 

 preserved, I have no doubt that it belongs to the species already 

 described by Schenk from the same place and also from 

 Lang-tien in Ho-nan. 



'Ö 



4. CORDAIIES PRINCIPALIS (Germ.). 



PI. IV. Fig. 1. 



Only a single fragment of a leaf, about 10 mm., belonging 

 to the basal portion. The veins are very distinct with 2 or 3 

 interstial ones. 



