THE MARINE BOTANIST. 209 



PHYLLOPHORA PALMETTOIDES.— SMALL 

 PHYLLOPHORA. 

 Root a widely-expanded disk, from whicli a 

 large number of stems issue. Stem short, simple 

 or branched, expanding into a mostly undivided or 

 once forked frond, one or two inches long, which 

 sometimes bears small leaflets from its tip or sur- 

 face. ^^ Towards the apex of the leaf, in fertile 

 specimens, is a large transverse elliptical sorus, 

 immersed in the substance, composed of a multi- 

 tude of minute tetraspores. No other fructification 

 has been observed." Harv. Known from P. Bro- 

 dicei by its bright rose-colour, large root and dif- 

 ferent position of the sori. Grows on rocks near 

 low water-mark. Perennial. Winter and Spring. 

 Rare. Shores of Devon and Cornwall. 



PEYSSONELIA. 



Named in honour of J. A. Peyssonel, an early and merito- 

 [rious observer of marine plants. 



Frond brownish-red, depressed, rooting by the 



