A REVISED LIST OF CORALLINyE. 27 



ceptacles as in the JEucheilosponmi. The conceptaculiferous pinnules 

 may be considered as the apices of the sagittate articuli enor- 

 mously prolonged and finally jointed. I have formerly mentioned 

 such a circumstance in a frond of the Eucheilosporum}^ 



Setchell and Gakdner^^ have doubted my species and think 

 them the robust forms of Corallina. They hesitatingly referred 

 C/ieil. Mc31illani to a coarse form of Californiau Corallina : and 

 further stated that they could not find any conceptacles on the 

 surface of the articuli of their Corallina except some which 

 seemed that of Choreonema. A single glance at a section of the 

 conceptacles under the microscope will determine whether it be- 

 longs to the plant proper or to the parasite. PI. II. fig. 19. of 

 *' Cor. ver. Japon " shows the cross section of the conceptacles of 

 Cheil. maxi7num. No one can confuse the comparatively con- 

 spicuous conceptacles of Corallinœ with the small sized ones of 

 Choreonema. I am quite cunvinced by Areschoug when he 

 writes in J. Ag's. Spec. Alg. II. p. 564 as follows : "■ Quœ sub 

 hoc nomine {Corallina officinali L.) inde (e Capite bonœ spei) 

 accepimus, sunt cum Arthrocardiœ palmatœ, tum Arthrocardice 

 Gorymbosœ formae juniores, quae pro Corallina officinali ab in- 

 cauto facile haberi possunt." 



Gen. ri. CORALLINA LAMX. 



= TitanephiUum Nardo. (sec. Endlicher). 



Although we can not find a detailed account, it is not hard 

 to understand that it was on the following ground that Solms- 



1) Cor. ver. Japon, p. 12. Cf. also Kütz. : Tab. Phyc. Vlil. Tab. 54. 



2) Alg. N. W. Amer. p. 3(55. 



