PECOPTERIS orbiculata

P. fronde bipedali tripinnata, pinnis alternis lanceolatis, pinnulis septem suborbiculatis pisi parvi magnitudine, margine uti videtur minutissime crenulatis, nervis vix conspicuis. In schisto Lithantracum Bohemiae ad Swina.

14. PECOPTERIS arguta. | | P. fronde bipinnata? pinnulis alternis oblongo - lanceolatis argute serratis, serraturis subspinulosis.

Filicites feminaeformis. scnLoru. Nachtr. zur Petref. p. 307. Ejusd. F1. d. Vorw. LEO 10. | | In schisto Lithantracum Germaniae ad Sadrbrück.

Obs. Exemplar nostrum mancum, ob pinnulas bene expressas tamen facile dignoscendum.