Eu Florideae, Corallinacege, Litiiophyllum. t1S^> 



Ilab. m\ insuliis Sandvicenses (Parlow). — Uaini fere 8 uiil- 

 lim. crussi. Conce[)tacula 300-875 jj.. alti (iu seciiono verticaliter 

 ducta). 

 10. Lithophyllum Okamurai Fosl. Five new calc. Algse (1900) p. 4. — '^^ 

 Crusta tenui, saxicola obvolvente; adulta sparse ramosa, raniis 

 partini remotiusculis, partim confertis, nunc simplicibus subtere- 

 tibus attenuato-obtusis, nunc angulatis, divisis nodulosisve, sursum 

 incrassatis, centro depressis dentatisque. 



Hdb. in oceano Pacifico ad « Sagami » Japoniye (Yendo). — 

 Crustse 600 |i. crasste. Rami 3-5 mm. longi, 1,5-2 mm. crassi. 

 Conceptacula sporangifera et carposporifera prajsentia. — forma 

 japonica Fosl. in litt. 1904. Huic formaj adscribit clarus Foslie 

 LUhophyllum cephaloides Heydr. Eine neue Kalkalge von Kaiser- 

 Wilbelms Land (1901) p. 271. 



17. Lithophyllum dentatum (Kuetz.) Fosl. Syst. of Litb. p. 10, New or 2882 

 crit. calc. Algie (1900) p. 31 (plur. form.), Spongites clenfata Kuetz. 

 Polyp. calcif. p. 33, Sp. p. 699, Lithothamnion dentatum Hauck 

 Meeresalgen p^ 273, t. H, f. 2. — Fronde libera, rotundata, den- 

 ticulata, ramis constituta plus minus complanatis, quoquoversum 

 radiantibus, irregulariter fequialte divisis, haud confertis, passim 

 concrescentibus, apicibus dilatatis, obtuse denticulatis aut subcor- 

 niculatis aut profunde emarginatis. 



Hah. in mari Adriatico orientali (Hauck); in sinu Neapolitano 

 (sec. Kuetzing); eadem species in oceano Atlantico ad oras Hi- 

 bernice (sec. Fosliej. — Frondes magnre. Rami 2-15 mm. lati. 

 Affinis ha3c species est Lithothamnio fasciculato (Lam.) Fosl. et 

 a formis quibusdam intermediis cautissime dignoscenda. Conferenda 

 est etiam f. sandvicensis Fosl. New Melobes. (1901) p. 11, ad in- 

 sulas Sandvicenses a cl. J. M. Barnard collecta. 



18. Lithophyllum Diguetii (Har.; Heydr. Lith. Paris (1901) p. 532, 2883 

 LithoUiamnion Digueti Hariot in Journal de botanique 1895, p. 168. 



— Fronde pilam in fundo jacentem sphaericam formante, irregula- 

 riter decomposito-ramosa; ramis cristarum ad instar undique egre- 

 dientibus, laminatis, basi plus minus conspicue eylindricis, compres- 

 sis, applanatis et quasi foliaceis, rarissime liberis plus minus un- 

 dique coalitis et aliquando alveolos efficientibus, levibus, margine 

 plus minus undulatis et obtusis, parce divisis ; conceptaculis paul- 

 lulum prominulis, mamillatis, poro apertis. 



Ilal). in sinu Californico ad « Bay de la Paz » (Diguet). — 

 Frons 5-6 cm. diam., purpun,>a. Conceptacula 300 [i. circ. diam. 



