VALOXIACEAE. 601 



* 



2. Cladophora crispula Vickers, Ann. Sci. Nat. Bot. IX. 1 : 56. 1905. 



On Digcnca, near low-water mark. Mai-iguana : Bermuda, American Virgin 

 Islands, and Barbados. Type from Barbados. 



3. Cladophora fuliginosa Kiitz. Sp. Alg. 415. 1849. 



Blodgettia, confervoides Harv. Ner. Bor.-Am. 3: 48. pi. 45 C. 1858. 



Common in shallow water, mostly in rather exposed places. New Providence, 

 Rose Island, Great Bahama, North Cat Cay, Eleuthera, Cat Island, Mariguana, 

 Caicos Islands, and Great Ragged Island : Bermuda to the American Virgin Islands. 

 Type from Havana, Cuba. 



4. Cladophora fascicularis (Mert.) Kiitz. Lirmaea 17: 91. 1843. 



Conferva fascicularis Mert.; Ag. Syst. Alg. 114. 1824. 



In shallow water. Berry Islands and Great Bahama : Florida to Brazil ; Peru. 

 Type from the West Indies. 



5. Cladophora nitida Kiitz. Phyc. Gen. 269. 1843. 



In shallow water. Great Bahama and Exuma Chain : Jamaica ; Europe. Type 

 from Trieste. 



6. Cladophora crystallina (Both) Kiitz. Linnaea 17: 91. 1843. 



Conferva crystallina Both, Cat. Bot. 1: 196. 1797. 



In shallow water. Berry Islands, Great Bahama. Exuma Chain, Atwood Cay, 

 and Caicos Islands : Massachusetts to West Indies ; Europe. Type from the 

 Baltic Sea. 



The Bahamian specimens provisionally referred to this species are not typical 

 forms. 



7. ? Cladophora luteola Harv. Xer. Bor.-Am. 3: 81. 1858. 



In tide-pools. Atwood Cay and Caicos Islands : Florida and Cuba. Type from 

 Key West, Florida. 



The Bahamian specimens somewhat doubtfully referred to this srtecies have a 

 more cespitose, less diffuse habit than the type, with rather stouter filaments, and 

 less secund ultimate ramuli. 



4. PITHOPHORA Wittr. Syst. Arr. Pithoph. 48. 1877. 



1. Pithophora oedogonia (Mont.) Wittr. loc. cit. 55. pi. 6. 



Conferva (Cladophora) oedogonia Mont. Ann. Sci. Xat. Bot. III. 14: 301. 



1850. 



In fresh-water holes, New Providence (Brace) : Pennsylvania and Nebraska to 

 South America. Type from Cayenne. 



Family 7. VALONIACEAE. 



1. CLADOPHOROPSIS Borg. Overs. K. Danske Videusk. Selsk. Forh. 



1905 3 : 288. 1905. 



1. Cladophoropsis membranacea (Ag.) Borg. loe. cit. 276. /. 8-13. 

 Conferva membranacea Ag. Syst. 120. 1824. 



Cladophora aegagropila membranacea Kiitz. Sp. Alg. 415. 1849. 

 Siphonocladus membranaceus Born.; De-Toni, Syll. Alg. 1: 358. 1889. 



Common in shallow water and washed .1 shore. New Providence, Rose Island, 

 North Cat Cay, Gun Cay, Andros. Exuma Chain. Watling's Island, Atwood Cay, 

 Mariguana, and Caicos Islands : Bermuda and Florida to Barbados. Type from 

 St. Croix. 



The plant is normally rather compactly or somewhat diffusely cespitose, but 

 when attacked by a dark filamentous endophytic fungus it becomes depressed or 

 prostrate and the filaments become thicker-walled. 



39 



