\ 



1738 Eu-Floridese, Corallinacese, Litliofcliamnion. 



giati. Conceptaciila 300-400 [x. diaiii. Celluhie 10-20 ;x. loiig;e. — 

 rorina americana Fosl. in Yid. Selsk. Skr. 1901, n. 3 (fonnain 

 typicani sistens). 



22. Lithothamnion Dicl<iei Fosl. New or crit. calc Alg. (1000) p. 7, --^746 

 Lithothamnion imbricatum, Dickie in .lonrn. Linn. Soc, Hotaiiy, 

 XV (1877) p. 486 (non Zanardini), Li/hothamnion polymorphum. 

 Dick. in Journ. Linn. Soc, Botany, XV (1877) p. 452. — Fronde 



(ut videtur) primum adfixa, deiii liliera, breve stipitata, sursuiii 

 expansa, repetito subtlabellatim aut irregulariter rainosa, rainis 

 plus minus compressis, sfepe insimnl contluentibus, apicibus rotun- 

 datis partim truncatis. 



Hab. in profundo mari ad «Prospeetee Harbour» pr. «Tahiti» 

 (H. N. Moseley). — Frondes 5,5-7,5 cm. diam. a-.quantes, fere 

 2 cm. crass;e. Rami 1,5 millim. circiter cnissi. Conceptiicuhi spo- 

 rangiorum sparsa ant subconferta, subpromineiitia, ;)50-4O0 \i. diain., 

 centro deplan;it;i, tegmine can;xlibus usque 30 crassiusculis percurso. 

 Cellula3 10-18^7-12 {x. 



23. Lithothamnion ramosissimum (Reuss) Scbimp. Paleont. veget. I, 2747 

 p. 180, Guembel Nullip. I, p. 24, FosL Rev. Syst. Surv. of Melob. 

 (1900) p. 12, NuUipora ra/mosi.ssima Reuss in Natnrvv. Abh, v. 

 Haidinger H (1848) p. 29, t. III, f. 10-11, Unger in Denkschr. 



K. K. Akad. Wien XIV (1858; p. 23, t. 5, f. 18-22. 



Hab. fossile in str;itis calcareis epochae tertiariaj (Unger, Rkuss, 



GUEMBEL). 



24. Lithothamnion rugosum Fosl. C:dc. Alg. from Fuegia (1900 p. 6G. — 2748 

 Lapidicola, crustis confluentibus, ad 1,5 mm. cr;issis, excrescentias 

 verruciformes aut ramos plus minus coiifertos ;id 7 mm. loiigos 



et 2-3 millim. latos proferentibus; ramis cr;issis, simplicibus, s;epe 

 nodosis aut rugosis, subinde anastomosantibus 



Hab. ad « Puerto Angosto» insulae Desohitionis in freto Magel- 

 lanico (P. Dusen). — Crust;Te tenues, adparenter anibitu indefinit*. 

 Concept;icula sporangiorum pnecipue versus ramoram apices con- 

 fertiuscula, disciformi;i:, plus minus prominentia, 350-450 ji. diam., 

 tegmine canalibus fere 40 cnissiusculis percurso. Celluhe hypothalli 

 primarii elongat», 10-14^5-6 ;j..; celluhe perithalli pariete cr;iss:l 

 donatte, 5-8 =* 4-6 [i. — forin;i valida Fosl. New Melobesieoe (1900) 

 p. 4: crusta fere 3 millim. crassa, ramis confertis anastomosantibus, 

 simplicibus subsiinplicibusve, 10 millim. longis, 3-6 mm. crassis. 

 Ad «San Diego» C;Tlifornige (H. Hemphill). — forma crassiuscula 

 Fosl. New Melobesiea? (1901; p. 4: crusta circiter 2 niillim. crassa, 



