1724 Eu-Floridege. Coralliuacege, Phymatolithon. 



the Melob. ^^1900) p. 8, LUhotliamnion Rotkpletzi Trabucco SuUa 

 vera posiz. dei terr. terz. del Bacino pieuiontese (1893) p. 14, 

 t. IX, f. 1. 



13. Archaeolithothamnion Guembelii Fosl. Rev. Syst. Surv. of tbe Melob. '-'^i^ 

 (1900) p. 8, Litliothamnion torulosum Rothpl. Foss. Kalkalgen- 

 Abdr. ri891) partim. 



14. Archaeolithothamnion Rosenbergi (K Mart.) Fosl. Rev. Syst. Surv. ~'^^ 

 of the Melob. (1900) p. 8. 



Specles quoad genus incerta. 



15. Archaeolithothamnion lithothamnioides Fosl. Den bot. Saniling 2714 

 (1902). 



Specie.s a genere i'emovenda. 



16. Archaeolithothamnion Fosliei (Heydr.) Fosl. Revis. Syst. Surv. of ~'^^^ 

 the Melob. (1900) p. 9, est Goniolithon. 



PHYMATOLITHON Fosl. [1898] Syst. Surv. of the Lithothamnion p. 4 

 (Etym. phi/ma tuberculura et lithos hipis), Rev. Syst. Surv. of the 

 Melob. (1900) p. 9, Eleutherospora Heydr. [1900] Lithoth. von 

 Helgoland p. 64, Lithothamnii, Milleporo3, Melohesioi sp. auct. 

 — Frons crustajformis. Sporangia in soros immersos et tegmine 

 depresso aut patella^formi poris numerosis percurso congesta, zona- 

 tim divisa. Cystocarpia in conceptaculis primum immersis, dein e 

 superficie erumpentibus et tegmine poro pertusis evoluta. Carpo- 

 sporre paraphysibus concoraitata3. 



Obs. ^"'ructificatio in diversis individuis obveniens. 



1. Phymatolithon polymorphum (L.) Fosl. loc. cit., Lithothamnion poly- 27i( 

 morphum (L.) Aresch. in J. Ag. Sp. II, p. 524, Fosl. Norw. Lithoth. 

 (1895) p. 86! Millepora (Nullipora) informis Lamarck Hist. d. 

 anim. s. vertebr. 2, p. 203, Melobesia polymorpha Harv. Man. 

 of Brit. Alg. ed. 2, p. 108, Ner. austr. p. 110, Eteutherospora 

 polymorpha Heydr. Lithoth. vou Helgoland p. 65, t. II, f. 1-14, 

 Lith. raus. Paris p. 537, Millepora polymorpha Linn. Syst. Nat. 

 ed. 12 (1758) p. 1285. — Fronde lapidescente, ponderosa, polymor- 

 pha, incrustante, lobata, lobis hemisphaericis araorphis; cystocarpiis 

 minutis, densissime sparsis. 



