PETAL OPHYLL UM. ' ^ 



between Loggan's Mill and Treve, Pbillack, and between Hayle 

 Causeway and St. Erth, W. Curium; Gwitbian, near Penzance, 

 W. Curnow. 7. Aberfiraw, Anglesey, /. Ualfs, W. Wilso7i, 

 W. H. P., 1900. 9. Southport, Lancasbire, Dr. Carrington , 

 a J. Wild, W. IL P. 10. Coatbam Marsb, Yorks, IF. Iii(jhaw, 

 1901. 



I. Malabide, Br. D. Moore. 



Algiers, Trabut. 



Obs. — Mr. W. Curnow, in bis " Hepaticoe of West Cornwall," 

 says : " One of tbe most interesting additions was a new species, 

 PefalopJii/Ihou llalfsii, first discovered by Mr. Kalfs in an immature 

 state on tbe sand-flats of Aberffraw, in Anglesey, and in tbe 

 spring following I gatbered it witb perfect fruit at Hayle, growing 

 in company witb Moerchia kibernica. I regret to say tbat tbis 

 locality for it bas since been destroyed by drainage, &c. In 

 consequence of tbis find an animated contest ensued between 

 Dr. Taylor and Mr. Wilson and Mr. Ralfs, eacb of our opponents 

 considering it a form of one or otber of tbe known species of 

 Fossombronia. Mr. Ealfs, bowever, witb bis usual clearness of 

 perception, and a praisewortby pertinacity in maintaining wbat 

 be believed to be tbe trutb, ultimately won bis case, and estab- 

 lislied tbe riglit of tbe plant to tbe rank of a new species, wbere- 

 upon Mr. Wilson courteously appended to it tbe name of tbe 

 discoverer.'^ 



It is a singular species, easily recognised by tbe lamellate 

 fronds. 



Description of Plate CXC- — Fig. 1. Fertile Irond, nnt. 

 size. 2. Male frond, sligbtly magnified. 3. Frond witb cross- 

 section of periantb (after Wilson, Eng. Bot.). 4-(j. Cross-sections 

 of stem X 11 (Soutbport, C. J. Wild). 7. Portion of frond x 

 290 (ditto). 8. Periantb x 11 (AberfFraw, Wilson). 9. Spore x 

 290 (Penzance, J. Ealfs). U». Antheridium x 24 (Soutbport, 

 Wild). 



