96 Dansk Botanisk Arkiv, Bd. 3. Nr. 1. 



reality several distinct species, all densely haired forms having 

 been referred to it. 



Referring to the comprehensive survey of Kjellman, quoted 

 above, for further details of this question I only wish to point 

 out here that Solander already mentions two varieties of his 

 Corallina lapidescens. He says (1. c, p. 113) : "There are two va- 

 rieties of this Coralhne, one that is always dichotomous. Tab. 22, 

 fig. 9, and another that sends out three or more joints from the 

 same place, Tab. 21, fig. g," and his description of some speci- 

 mens "preserved in spirits as they were taken out of the sea" 

 in which the "fine short reddish hairs come out in regular whirls 

 or circles", seems to suggest that he has had to do with a third 

 species e. g. G. suhverticillata or a similar one. While Solander 

 nearly always mentions the localities from whence the plants 

 originate, he unfortunately does not give any localities for this 

 species. 



As is clear from this the founder of the species referred 

 perhaps even three different forms to it and afterwards nearly 

 all long-haired forms have, as pointed out above, been con- 

 sidered as belonging to it. The only investigator who has 

 tried to divide this species is Kützing who in "Tabulæ Phy- 

 colgicse", vol. VIII, p. 38 has two species namely: G. lapidescens 

 and G. tomentosa. But J. Agardh in Epicrisis, p. 530, refers 

 Kützing's species tomentosa to G. lapidescens as a variety only 

 That J. Agardh nevertheless had some doubt how far G. lapides- 

 cens should be separated is evident, as was also pointed out by 

 Kjellman, not only from his remark in Epicrisis, 1. c. : "an plures 

 species hoc loco lateant", but also from what is said in "Till 

 Algernes Systematik", 4de afdeling, VII Florideæ, p. 75. Yet I 

 shall only mention that Askenasy in "Forschungsreise S. M. S. 

 Gazelle", IV Teil, p. 33 with regard to the occurrence of G. lapi- 

 descens says that it is common in all tropical seas. Thus matters 

 stood when Kjellman commenced his thorough investigations. 



As a result of these studies this species is now divided into 

 a great number of species with more restricted distribution. 

 But as Kjellman had no opportunity to examine the original 

 specimens of Ellis and Solander he did not know with 

 certainty which of his species ought in future to be named 

 lapidescens and among the species which he refers to the 

 group Rhodiira he does not mention it. On the other hand in 

 the introductory remarks to the Rhodiira group he points out 

 that in his opinion this species ought to be maintained and he 



