12 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL.98 



The nomenclatorial status of this plant seems somewhat confused. 

 Falkenberg in using the name callithamnioides for it thought his plant 

 was the same as that of the Crouans ; he therefore simply made a new 

 combination in attaching the specific name to Melobesia and did not 

 describe his plant. When he admitted the error in identification, he 

 named his plant M. solmsiana; he did not describe it even then, but did 

 refer to Solms-Laubach's excellent account. It would seem that the 

 name Solmsiana alone signifies, though perhaps its title is not quite 

 regular. Whether one considers it a form or a variety is a matter of 

 opinion, and the writer is not sure that the name may not have been 

 used as that of a variety before Lemoine did so. Since she used the 

 name in the genus Melobesia, it is unfortunately necssary to make a 

 new combination in the genus Fosliella. The more important records 

 consulted follow: Melobesia callithamnioides Falkenberg 1879, p. 265, 

 regarding the plant. Neither Hapalidium callithamnioides Crouan 

 1859, p. 287, pi. 21, figs. 21-24, nor 1867, p. 149, pi. 20, figs. 1-3. Not 

 Melobesia callithamnioides (Crouan) Falkenberg loc. cit., regarding 

 the name. Not Guerinea callithamnioides (Crouan) Picquenard, cf. 

 DeToni 1924, p. 530. M. callithamnioides Falkenberg, Solms-Lau- 

 bach 1881, p. 11, pi. 1, fig. 13, and Hauck 1885, p. 262, fig. 106 (after 

 Solms-Laubach). M. solmsiana Falkenberg 1901, p. 109 (no illustra- 

 tions, no description). M. farinosa forma solmsiana (Falkenberg) 

 Foslie 1908, p. 16. M. callithamnioides Falkenberg, Migula 1909, 

 p. 155, pi. 53M, fig. 6, and Schiffner 1916, p. 151. M. farinosa var. 

 solmsiana Lemoine in BpYgesen 1917, p. 173, fig. 165 d, e, and Taylor 

 1928, p. 211. M. farinosa var. callithamnioides Foslie, Newton 1931, 

 p. 301. 



Lithophyllum alternans Lemoine 



Collected along the shore, Fernandina Island, Archipelago de Colon, 

 Ecuador (Narborough Island, Galapagos Islands) (Schmitt 26), 

 July 25, 1938. 



Lithophyllum pustulatum (Lamouroux) Foslie 



On Laurencia obtusa in shallow water, probably on reefs, Old 

 Providence Island, Colombia (Schmitt 51), August 6, 1938. 



Lithothamnion mesomorphum Foslie 



Probably on the reef, Old Providence Island, Colombia (Schmitt 

 52), August 6, 1938. 



