432 



rhizoids. Unfortunately, my specimens wcre still sterile. Batters 

 has referred his example which bore plurilocular sporangia to 

 R. verrucosa. And Kuckuck has by the help of Batters's original 

 example proved that his Heligoland plant is identical with the 

 English. Kuckuck ends thus: — »Es wird mir vielleicht gelingen, 

 spåter einmal durch Beobachtungen im Freien und an Kulturen 

 die hier behandelte Frage endgultig zu entscheiden. Vorlåufig kann 

 ich nur meinen Zweifel dariiber aussprechen, ob unsere Ralfsia zu 

 verrucosa gehort, und mochte eher vermuten, dass R. deusta vorliegt. 

 Wenigstens zeigt die Pflanze, nach welcher Batters seine oben 

 zitirte Figur anfertigte, vollkommen entwickelte Bilateralitåt«. But 

 Ralfsia verrucosa also may occasionally show signs of being bilateral 

 and I am therefore of opinion — Dr. Kuckuck, with whom I 

 discussed the point, said very much the same thing — that the 

 specimens in question are nothing more than a form of Ralfsia 

 verrucosa, which possibly, by growing in the sublittoral zone, has 

 acquired a somewhat different appearance; or what is perhaps most 

 probable, as Batters says, — piants bearing plurilocular sporangia 

 differ from those with unilocular fruit. 



112. (?)R. clavata (Carm.) Farl., Mar. Alg., p. 88; Rosenv., Grønl. 



Havalg., p. 899. 



Amongst some different algæ scraped from rocks at a height of 

 some 8 — 9 feet above high-water mark near Famien (.Syd.j there oc- 

 curred an insignificant quantity of a small Ralfsia which probably be- 

 longs to this species, but the sporangia being unripe the determination 

 is open to doubt. it may, however, be presumed that this species, 

 which has been met with in the surrounding countries both to the 

 north and south of the Færoes, also occurs there. 



Order SPHACELARIACEAE. 

 SPHACELAMA Lyngb. 1 



113. S. britannica Sauvag., Remarques sur les Sphacélariacées 

 (Journal de Botanique 1901, p. 50). 



Found near high-water mark or somewhat above it on damp 

 rocks especially in caves and rock-clefts, where it occurs as a short, 

 dark-brown mat often in association with other algæ, e. g. Calli- 

 thamnion, Ectocarpus littoralis, Rhodochbrton Rothii, etc. 



Grows on fairly exposed coasts. 



1 Professor Sauvageau has kindly determined my material of Sphacelaria 



