26 Stopes, a Neiv Fern from the Coal Measures. 



II. Specific Description. 



The genus as described by Stenzel ('89) is as 

 follows : — 



"Tubicaulis Cotta, Dendrol. S. 15. 



"Truncus petiolorum basibus persistentibus obtectus 

 herbaceus, fasciculo vasculari centrali simplice, terete, 

 singulos fascicules per corticem crassum in folia emittente. 

 Petioli basi tenues, ascendentes valde incrassati, fascicu- 

 lum vascularem simpHcem, fasciaeformem, canaliculatum, 

 cavitate extrorsum spectante includentes. 



"Rohrenstein Breith. — Endogenites Sprengel p.p. — Seleno- 

 chlaena Corda." 



As before stated (p. 21), he included but one species 

 in this genus, the description of which follows. 



" Tubicaulis Solenites, Cotta. 



" T. caule digitum crasso erecto herbaceo ; cortice 

 crassiore quam fasciculo vasculari simplice terete ; petiolis 

 basi tenuioribus, ascendentibus valde incrassatis, com- 

 pressis, ultra pollicem latis, fasciculo centrali canaliculato, 

 cavitate extrorsum spectante, cortice interno molli, externo 

 e cellulis minoribus firmioribus composito." 



To this I would add : Petiolis ramosis juxta caul em ; 

 phyllotaxis ^-^ et 7/^. 



"Rohrenstein, Breithaupt in Oken's Isis, Jahrg. I. (1820), 

 Heft, v., S. 440, Taf. 4. " Ueber eine Art von Palmen versteine- 

 rung : Rohrenstein." — Schippan, H. A., Quer- und Langen- 

 durchschnittsriss einer in Sachsen gefundenen versteinerten 

 Palme. Freyberg, 1824. 4^. 6 Seiten und i Tafel. 



" Endogenites Solenites p.p. Sprengel, comentatio de Psaro- 

 lithis, 1828, p. 32. 



"Tubicaulis Solenites Cotta, Dendrolithen. 1832, S. 21, 22, 

 Taf. 2, Fig. 1—3. 



