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



hairs. The presence of hairs in Scinaia furcellata is mentioned 

 by RosENViNGe^). These are now described in detail by Svedelius. 

 This plant has been found in deep water only, in dephts 

 from 20 — 30 meters. The specimens were collected in the month 

 of March and had antheridia and cystocarps. 



It has been gathered in the sound between St. Thomas and St. Jan 

 in several places of! Cruz Bay, and off America Hill in the sea to the north 

 of St. Jan. 



Geogr. Distrib. Florida, Bermuda. 



Subfam. 2. Chætangieæ. 

 Galaxaura Lamouroux. 



In his very valuable monographical work, "Om Floridé- 

 slagtet Galaxaura, dess organografi och systematik" (Kongl. 

 Svenska Vetensk.-Akad. Handl., Bd. 33, No. 1, Stockhlom 1900) 

 Kjellman has shown that most of the older species are collective- 

 species, in reality comprising often several easily distinguishable 

 species. 



As a result of his examination Kjellman describes a great 

 number of new species, he mentions in all 62, many of which 

 seem to be very nearly related. As regards these species, how- 

 ever, in all cases with which I am personally acquainted they 

 seem to be well founded. 



These many species are relegated by Kjellman to nine 

 principal groups, based essentially upon the different develop- 

 ment of the assimilating tissue. 



Kjellman based his work exclusively upon material which 

 was found in his own herbarium, and in Herb. Areschoug in 

 Stockholm supplemented with specimens from J. Agardh in 

 Lund. Without doubt this material has proved to be very rich 

 as is evident from the numerous species it contained, but, never- 

 theless, Kjellman's work would have been yet more valuable 

 had he also cleared up, as far as possible, the older species and 

 identified them with the forms which were found in the col- 

 lections examined by him. This ought especially to be done with 

 the species of Ellis and Solander described in "The natural 

 history of many curious and uncommon Zoophytes", London 

 1786, a most valuable work for that time. 



1) RosENviNGE, L. KoLDERUP, Remarks on the hyaline unicellular hairs 

 of the Florideae. (Biologiske Arbejder tilegnede Eug. Warming paa 

 hans 70 Aars Fødselsdag. København 1911, p. 204). 



