502 PROCEEDINOS OF THE NATIONAL MUSEUM. vol. 41. 



Several of the above-named plants were obviously wrongly identi- 

 fied by Sclienk, whose paleobotanical experience had been limited 

 almost entirely to the floras of the Mesozoic. According to his deter- 

 minations of the fossils the flora should have been referred to the 

 Allegheny or uppermost Pottsville. These species will be further 

 considered together with the plants from Yun-Nan. 



The small collections made by the French expedition in southern 

 Yun-Nan, and described in 1907 by Zeiller/ are from three localities, 

 (1) Tou-Tza, (2) Sini-Si-Keuou, and (3) I-Ioui-Chao. The species, 

 with their occurrence indicated by the above ordinal numbers, 

 together with references to Zeiller's figures, are as follows: 



Txniopteris, sp., 3 (figs. 12, 13). 



Tasniopteris? , sp., 3. 



Gigantopteris nicotiansefolia, 1, 2, 3 (figs. 



14, 15, 15% 16). 

 Cf. Annularia maxima, 1 (fig. 17). 

 Stigmarin, sp., 3 (fig. 18). 



Pecopteris (Cladophlebis?), sp., 1 (fig. 6). 



Pecopteris, sp., 3 (fig. 8). 



Pecopteris (Calliptendium.'}) , sp., 3 (fig. 



7, 7a). 

 Neuro2)teridium, cf. bergense, 1, 3 (fig. 10). 

 Neiiropteridiuin, sp., 2 (fig. 9). 

 Taeniopteris, sp., 2. 



In connection with his identification of the Yun-Nan fragment 

 with Schenk's Annularia maxima, Zeiller points out that it belongs to 

 a different and probably new genus. However that may be, it is 

 interesting to note that the peculiar type figured by Zeiller seems to 

 be exactly represented by several fragments in the Texas collections, 

 Schenk's Calamites suggests the forms with very wide ribs figured by 

 Kutorga and Eichwald from the Russian Permian. His Neuwpteris 

 jiexuosa belongs apparently to the N. ijlanchardi group, and is com- 

 pared by Zeiller with N. matheroni. It is somewhat suggestive also 

 of the leaflets figured by Zeiller as Neuropteridium. The pinnules 

 wrongly placed by Schenk under Neuropteris angustifolia appear to 

 represent an undescribed species from beds a little below the Wreford 

 limestone in southern Kansas. Also the fragment of distinctly Meso- 

 zoic aspect figured by Zeiller as Pecopteris, sp., appears indistinguish- 

 able from like fragments found near the horizon of the Winfield form- 

 ation in Kansas, as well as with Gigantopteris near Fulda, Texas. 

 Schenk's pinnte erroneously placed in Cyatheites miltoni and C. unitus 

 also have their counterparts in the Western States, though they 

 probably are not confined to the Permian of that region. His 

 Lepidophyllum is generically unrecognizable, but his Cordaites princi- 

 palis probably agrees with the specimens referred to that species in 

 both Europe and America. It is somewhat characteristic of the 

 Permian. 



A Cladophlebis-like Pecopteris, possibly identical with that shown 

 by Zeiller, is present in the Texas Permian, where also is to be found 



• Tl&ultats do la Mission g^ologiqiie et minifere du Yunnan meridional (Septembre 1&03-Janvier 1904); 

 Note sur quelques empreinles v^gtHales des gites de charboa du Yunnan nu'M-idional, par R. Zeiller, Ann. 

 d. Mines, Paris, ser. 10, vol. 11, 1907, p. 447 et seq., pi. 14. 



