u 



M. Foslte. 



Cliantransia microscopica (Nag.) nob. 



Callithamnion microscopicum Nag. in Kiitz. Spee. Alg. p. 640. 

 Descr, Åclirochaetium microscopicnm Nag. Ceram. p. 173. 



Nag. 1. c. % 24—25. 



Fig. 



Callithamnion 



ff 



■)■> 



Ktitz. Tab. Pliyc. 11, t. 58. 



This species appears to be considered as a distinct one. 

 From Ch. secundata it distingulshes itself most essentially by 

 its vertical tlireads arisitig from a disk consisting of one cell, 

 which is, seen from ahove, sbaped like a ring. By Gk. secun- 

 data the threads arise from a cellular base. I have found 

 this to be constant by all the specimens I have seen, and 

 Nagell says (1. c. p. 173) that «ein mehrcelliger Discus 

 wie bei den iibrigen Arten ist nicht vorhanden». 



The present plant is litoral, growing in rock-pools epi- 

 phytic on Tolysi^honia arceoJata, on rather exposed places. 

 The Finmarkian specimens are smaller (50 — 100 \i long, the 

 cells 6 — 8 \k thick) and less branched than those fignred by 



F 



Kil tz ing. The hairs are also much fewer. It bears re-- 

 productive organs at the end of July. 



Distnhution: Only found at Kjelmo in Sydvaranger, rare. 



Fam. Hildbrandtiaceae Hauck 



Mecresalg. p. 13. 



Gen. Hildbrandtia Ktitz. 



Mr 1834, p. 675. 



Hildbrandtia rosea Ktitz. 



phyc. gener. p. 384. 

 Descr, Hildbrandtia rosea J. G. Ag. Epler. p. 879. 



Fig. 

 Exsicc, 



m 



» 



tf 



n 



Kiitz. Tab. Phyc. 19, t. 91. 

 Aresch. Alg. Scand. exsicc. Nr. 159. 



Litoral, growing in rock-pools or on rocks, chiefly within 



•^h© lower paxt of the ;?;one 



'? 



■f 



<' 



v 



