50 



HAND? BOOK OP 



LV. Phyllophora. Membranaceous, with small fronds. 



1. Rubens, red phyllophora. 



2. Brodicei, the Brodie. 



LVI. Peyssonclia. In honour of J. A. Peyssonel, an early 

 observer of marine plants, especially corallines. 

 1. Dubyi, the Dubyi Peyssonelia. 



LVII. Hilderibrantia. More known by the name of Ralfsia 

 deusta, in honour of John Ralfs, of Penzance. 

 1. Rubra, red hildebrantia. 



Family XI.— Gasteocakpe^:. 



LVIII. Kalymenia. Signifying a beautiful membrane. 



1. Reniformis, simply-branched kalymenia. 



2. Dubyi, the Duby. 



LIX. Kalymenia. The sea, and a membrane. 

 1. Ligulata, strap-leaved halymenia. 



Dumontia Filiformis.— Dr. Cocks, Falmouth, Swanpool, on rock» 

 Feb. 1845. 



