435 



and in sheltered situations. It bore unilocular sporangia in the 



spring and summer months and in October and November, and 



appears to be able to frnctify all Ihr year round. 



var. lubrica bas been found epiphytic on Halosaccion ramentaceum 



and bad unilocular sporangia in Mav. 



While the main form is extremely common everyvvhere along the 

 coasts of the Færoes, var. lubrica has been found only on Bord 6: 



Klaksvig (!). 



Elaehista flaccida (Dillw.) Aresch. is reported from the 

 Færoes by Lyngbye under the nanie of Conferva flaccida (Hydro- 

 pli yt., p. 146): — »Habitat ad littora Færoensia, Fuco vesiculoso insi- 

 dens, baud raro«. The specimens in his herbarium are, however, 

 Elaehista fucicola. Simmons also (1. c. p. 270) mentions E. flaccida 

 »auf Himanthalia lorea bei Thorshavn und auf Eucus uesicnlosus 

 im Qualbofjord«. The specimens 1 from Kvalbofjord growing on 

 Fucus nesicutosus which I have had for examination proved, however, 

 to be E. fucicola. 



120. E. scutulata (Smith) Duby. Thuret, Etudes phycol., p. 19, 

 tab. 8; Thuret, Recherches sur les Zoospores des Algues, p. 27, tab. 25. 



Grows on the receptacles of Himanthalia lorea. 



Found with unilocular sporangia in August and November, 



having, moreover, young plurilocular sporangia in the latter month. 



Doubtless an autumn and winter alga, as I have searched for it in 



vain amongst the material gathered in spring and summer. 



Found hitherto in the following piaces only: — S vin 6 (H.J.); Syd.: 

 Kvalbo (H. S.). 



LEPTONEMA Reinke. 



121. L. fasciculatum Reinke, Atlas, p. 13, tab. 10; Elaehista 

 fasciculata (Reinke) Gran, Algevegetationen i Tonsbergfjorden, p. 29. 



var. subcy lindrica Rosenv., Grønl. Havalg., p. 879. 



As I quite follow the opinion expressed by Svedelius in 

 »Studier ofver Ostersjons Hafsalgtlora«, p. 94, I do not hesitate in 

 maintaining Leptonema as a genus though it is certainly closely 

 related to Elaehista. 



The Færoese specimens agreed well with Rosenvinge's de- 

 scription (1. c); the vegetative filaments were about 8 — 9 p broad; 

 the fructifying 13 — 14 /*. 



1 One presented by Simmons to the Botanical Museum in Copenhagen, and 

 one kindly lent me by the Botanical Museum in Lund. 



Botany of the Færoes. 28 



