Portion of fertile Frond— uuder side. 



CERATOPTEEIS THALICTROIDES. 



Brongniart. Hooker and Bauer. Smith. Link. Presl. 



PLATE LXVI. VOL. II. 



Ellohocarpus oleraceus. 

 Acrostich um thalictroides, 



" siliquosum, 



Furcaria tJialictroides, 

 Pteris thalictroides, 



" esculenta, 



" ferulacea, 

 Ceratopteris ParTceri, 

 Parkeria pteroides. 



Kaulfuss. 



LiNNiEUS. BUEMANN. 

 LlNN^US. BUEMANJS". 



Desvaux. 



SWAETZ. WlLLDENOW. 



Of Gaedens. 



e-ichaeds. 



J. Smith. Mooee & Houlston. 



HOOKEE AND BaUEE. 



Ceratojpteris-^-T]ie Horn Fern. 



Thalictroides — Allheal. 



The Ceratopteris thalictroides is a most singular Fern. It is 

 a water-plant, growing in stagnant pools in hot climates. The 



