rinna of mature Frond. 



MOHRIA THURIFRxVGA, Var. Achilli^folia. 

 Moore. 



PLATE XLII. H. 



Mohria — Kamed after Mohr, a German botanist. 

 Thurifraga — Frankincense. AchilUirfulia — Acbillia-leaved. 



A MOST beautiful variety of the Mohria thmlfraga, (figured 

 on Plate LXX, vol. viii, of my "Natural History of British 

 and Exotic Ferns,") having the barren fronds from four to 

 six inches in length, and the fertile fronds from six to nine 

 inches, the barren being t'^vo inches, and the fertile from two 

 inches and a half to three inches wide. The lower parts of 

 the fertile fronds (which are erect) are like the barren ones, 

 the upper part alone being fertile, and much like the fertile 

 frond of the normal form of Mohria thurifrafja. 



Ehizoma slow creeping. 



One of the greatest proofs that this charming Fern is only 

 a variety of M. thurifraga, is that spores carefully saved and 

 sown have only produced the ordinary form of M. thurifraga. 



For a plant my thanks are due to ]\Ir. Henderson, of 

 Wentworth; and for the fronds illustrated, to Mr. R. Sim, of 

 Foot's Cray. 



