604 NBW YORK STATE MUSEUM 



of the United States national museum proceedings, pi. 10, fig. 6. 

 Tliis specimen, to which the above specific designation was 

 applied in manuscript by the writer several years ago, is one 

 of a suite from the Catskill beds at Factoryville Pa., now in 

 the Lacoe collection. As will be seen by consulting the figure 

 cited, the species is characterized by the wavy or ruffled lateral 

 wing of the clearly membranaceous lamina, and the distinct 

 costa, rounded in contrast but showing no signs of vascular 

 structure. In form and aspect it is most nearly comparable 

 to the living Dictyopteris delicatula Lam., though 

 its lamina is wavy or ruffled at the borders in addition. 



To the genus Taeniocrada would appear to belong also the 

 specimens from the Devonic illustrated by Potoni^i and the 

 «andbergers,2 as perhaps may the Haliserites distans 

 of Eichwald,^ from the Carbonic of Kussia, theH. lusaticus 

 of Geinitz,^ from the Permic of iSaxouy, and possibly the H. 

 1 i n e a t u s and H. chondriformis of Penhallow^ from 

 the upper Chemung beds at Lanesboro, Susquehanna co., Pa. 

 Whether the specimens illustrated by Goppert as Hali- 

 serites dechenianus are congeneric with Taeniocrada, 

 remains for the present a matter of doubt. 



Of the plants from the Mesozoic described as Haliserites 

 the H. contortuplicatus von der Marck^ and H . 

 gracilis Deb. & Ett.,^ from the Senouian, are characterized 

 as membranaceous and appear to owe their reference to this 

 genus to their resemblance to the living Haliseris.^ It is 



' Lehrbuch d. rHanzenpaleont 1899. p. 60, flg^ 26. 



• Verst. d. Rhein. Schichtensyst Nassau. 18o0. p. 424, pi. 38, fig. 1. 



• Letbaea lossica. IbiiO. 1: 49, pi. 1, fig. 2. 



• Dyas. 1862. pt 2, p. 133, 336. 



• U. S. nat. mus. Proc. 1893. 16: 110, pi. 11, fig. 8b and 9. 



• Pabieoutograpbica. 1863. 11: 81, pi. 13, tig. 13. 



^ Debey &, Ettiugsbausen. Urweltlicbe Tballopbyten. 1859. p. 61, pi. 1, 

 fig. 1, 2. 



• Otber Mesozoic species described as Haliserites are: H. scblotbeimi 

 Debey (Entwurf. e. geogn. geogen. Darstell. d. Gegend v. Aachen. 1&49. 

 p. 31) and H. t r i f i d u s Debey (Verb. Naturb. Ver. pr. Kheinl. u. West- 

 phiU. Jabrg. 5. 1848. p. 114) from the Senonian; H. tunguscanus 

 Schmalbauseu (Mem. Acad. imp. Sei. St Petersb. Ser. 7. 27:59) from the 

 Oolite; and H.? elongatus Fr. Braun (Monster's Beltriige. 1843. v. 6, 

 no. 26, p. 26) from the older Mesozoic. 



