F. Borgesen: Rhodophyceæ of the Danish W. Indies. 



73 



Liagora tenuis J. Ag. seems to come very near to this species 

 judging from the few specimens upon which J. Agaedh based 

 his description. Compared with L. valida the thallus seems to 

 be a httle thinner, but except for this not very essential diffe- 

 rence they are very ahke. Of one of the specimens, collected 

 at Florida by Miss Curtiss a small piece was examined; it had 

 the assimilating 

 filaments less rami- 

 fied than in L. va- 

 lida and the fila- 

 ments had not the 

 corymbiform out- 

 line, but to decide 

 how far these dif- 

 ferences are other 

 than casual de- 

 velopment much 

 more material is 

 necessary. 



Liagora annii- 



lata J. Ag. also 



seems to come near 



to Liagora valida ; ' / h 



indeed, most pro- Y\g. 75. Liagora valida Harv. a, assimilating fila- 



bablv it is only ment with young cystocarp, b, carpogonial branch, 



. . f .u-" c, cystocarp with surrounding filaments, f/, e, sporo- 



a variety Oi tnis ggnous filaments with carpospores. [a and c about 

 species; asuppo- 60 : 1; fc, f/, 160: l; c, 140: l ; e, 250: l). 



sition I have con- 

 firmed by the fact that in some of my specimens now and then 

 a rudimentary annulation is present. But to settle this question 

 rich material is necessary. In his paper, "Notes on Bahaman 

 Algæ^)", Howe considers it as a distinct species. 



Liagora valida has been collected with ripe carpospores in 

 January and February. It grows in shallow water in the upper 

 sublittoral region and in somewhat sheltered places. 



St. Croix: At White Bay near tlie south west end of the island and 

 at Coakley Bay upon the north side. 



Geogr. Distrib.: West Indies, Madagascar. 



1) Bulletin of the Torrey Bot. Club, vol. 31, 1904, p. 99. 



