MAEmE ALG^ OF THE ' SEALAEK ' EXPEDITION. 121 



preparations the peculiar glands described by Mr. Borgesen. In how far, however, 

 tliese differences may depend upon the depth at which the plant was gathered, I do not 

 venture to say. The specimen — and it is only a fragment — gives the impression of being 

 still very young and therefore I wish to be doubly cautious in my opinion as to it. 



Pam. DELESSEEIACE^. 



Hypoglossum, Kiitzing. 



1. Hypoglossum spec. 



Amirante, 25 fms. ; dry specimen. 



A fragment; .probably B^ypoglossum spathulatum (Ktitz.), J. Ag. {JDclesseria hjpo- 

 glossoides, Harvey, Austral. Alg.), but the specimen is too badly preserved to be 

 identified with certainty. 



NiTOPHYLLUM, Grcville. 



1. NiTOPHYLLUM SpCC. 



Amirante, 25 fms. 



Only a poor fragment, attached to other algae and indeterminable, but with a 



tetraspore-bearing sorus typical for this genus. 



V 



Earn. RHODOMELACE^. 



Subfam. Latjrencie^ 



Laurencia, Lamouroux. 

 1. Lattrencia nidifica, J. Ag. 



J. Agardh, Spec. Alg. ii. 1863, p. 749. 



De Toni, Syll. Alg. vol. iv. sect. in. 1903, p. 785. 



Aldabra, reef. 



Distribution. Sandwich Islands ; :Malay Archipelago. 



2. Laurekcia obtusa (Huds.), Lamx. 



Essai de classification, p. 42. 



De Toni, Syll. Alg. vol. iv. sect. in. 1903, p. 791. 



Facus obtnsus, Hudson, Flora Anglica, ed. iii. p. 586. 



Aldabra, reef ; dry specimens. 

 Coetivy, reef; dry specimen. 

 Egmont, reef and shoal; in alcohol. 



Distribution. Mediterranean ; Eiji Islands ; Malay Archipelago. 

 Laurencia obtusa is represented by two forms in the Stanley Gardiner collection ; from 

 Aldabra there are three packets (nos. 4, 5, 8). No. 4. is the stoutest plant, no. 5 and 



SECOND SERIES. — BOTANY, VOL. VIII. 



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