1748 Eu-Floridese, Corallinaoese, Lithothamnion. 1 



golandiam (Hauck, Heydrich); eadem ad oras Norvegise (Foslie) 

 et Aiiglite (Batters, Heydrich). — Coiiceptacula carposporifera 

 plerumque in individuis pro[)riis evoluta, rarius in individuis tetra- 

 sporangiferis obvenientia. Conceptacula sporangifera tegmine caua- 

 libus 80-100 intersecto pr;iedita. Sporangia (sec. Foslie) zonatim 

 divisa, 100-140 ^ 35-60 {i. — forma pacifica Fosl. New Sp. or forms 

 of Melob. (1902) p. 4: verrucis magis ramuliformibus; conceptaculis 

 sporangiferis minus prominentibus quam in forma typica. Ad oras 

 Californiae, passim (Setchell, Gardnerj. 



51. Lithothamnion phymatodeum Fosl. New Sp. or forms of Melob. 2775 

 (1902) p. o. - Frondae crustajformi, 1-2 inm. crassa, excrescentiis 

 verrucgeformibus aut irregularibus instructa; conceptaculis sporangi- 

 feris disciformibus, subprominentibus, 300-400 {j.. diam. sequantibus. 



Hah. in rupibus ad oras Pacificas Americse borealis pr. « Puget 

 Sound, Whidbey Island » (Setchell et Gardner). — Habitus Phy- 

 matolithi polyniorphi. Cellula; peritlialli 9-11-14*6-9 ^. Tegmen 

 conceptaculorum poris 30-40 intersectum. Sporangia zonatim divisa, 

 100 ^ 55 {1. Lithothamnio Sonderi Hauck hiec species proxima 

 dicitur. 



52. Lithothamnion ?8cabi08um (Harv.) Fosl. Hev. Syst. Surv. of Melob. 2776 

 (1900) p. 14, Melobesia scaUosa Haiv. Nereis austral. p. 110, 

 Aresch. in J. Ag. Sp. H, p. 515. — Fronde late effusa, saxicola, 

 orbiculari, crusta tenui, rugis minutis asperata; conceptaculis (ce- 

 ramidiis Harv.) minutissimis, punctiformibus, numerosis, sparsis. 



Hab. in lapidibus prope Bahiam (Darwin). — Species dicitur 

 distincta et magnopere vulgaris, scrobiculos aqua repletos intus 

 investiens. Color opacus. 



53. Lithothamnion Philippii Fosl. On some Lithoth. (1897) p. 7, Li- 2777 

 thothamnion decussatam (Solms) Fosl. Norw. Lithoth. (1895) 



p. 7, Lithophyllum decussatum Solms Corall. Gulf. Neap. p. 14, 

 Hauck Meeresalgen p. 270, t. I, f. 7 (non Philippi), Lithothamnion 

 purpureum Hauck Beitr. 1878, p. 290 (non Crouan). — Fronde 

 lamelhBformi, 0,3-0,8 mm. crassa, pagina tota inferiori adnata, 

 subinde margine libera lobataque, demum omnino soluta et nodulos 

 irregulariter rotundatos efficiente; nodulis verrucoso-foveolatis, pro- 

 minentiis brevibus, nodosis, plus miuus coalescentibus; concepta- 

 culis sporangiferis verrucas subplanatas sistentibus, saepe aggre- 

 gatis; conceptaculis sexualibus confertis, minutis, parum elevatis, 

 verrucseformibus, apice poro pertusis. 



Hab. in mari Mediterraneo et Adriatico. - Conceptacula spo- 



