209 



28. Stigonema ocellatum (Dillw.) Thur. 



This alga has alrcady been found by Lj'ngbye as his Scytonema 

 Myochroiis (Hydrophyt. p. 96): »in insulis Færoensibus sat vulgaris«, is 

 according to Flaliault's determination identical with this species; the 

 specimen in Lyngbye's Herbarium is found: »in lacu alpestri rupis 

 Kirlveboe ad Thorsliavn . Rostrup mentions having found it on Glivers- 

 rejn near Tliorsliavn; as reported by Lyngbye it seems on tlie wliole 

 to be rather common I often found it in the material I had for exa- 

 mination. 



29. S. tomentosum (Kiitz.) Hieron. 



Bemerkungen iiber ein. Art. d. Gatt. Stigonema Ag. (Hedwigia 

 1895, p. 166). 



Found mixed together with Trentepohlia aiirca on damp roclvs in 

 »Gjov« near Vestmanliavn (Str.). 



30. S. minutum (Ag.) Hass. 



Found amongst other algæ from tlie bottom of a small pond near 

 Trangisvaag (Sj'd.); and mixed with Gloescapsa Magma on Stereocaiilon 

 from Thorshavn (Str.). 



31. S. turfaceum Cooke. 



Wille (1. c. p. 24) reports having found this species. 



32. S. informe Kiitz. 



In a gathering from the Færoes. Habitat not given. 



33. S. mamillosa (Lyngb.) Ag. 



At the foot of Ornefjæld near Trangisvaag (Syd.); »Gjov« near Vest- 

 manhavn (Str.); and on mountain heights (450 m.) on Bordo. 



Lyngbye mentions this species in Hydrophyt. p. 85 as Bangia ma- 

 millosa, but says that he has not met with it in the Færoes. However, 

 in his herbarium there is a very small specimen labelled: »in saxis ad 

 ripam lacus Kirkevatn prope Famoye, Suderoe«. 



The Bangia atrovirens mentioned by Lyngbye in Hydrophyt. p. 85 

 and gathered h\ him on subalpine rocks is Ephebe sp. 



Order VL SCYTONEMACEÆ. 



34. Scytonema mirabile (Dillw.) Born. 



Bulletin Soc. bot. de France, tome 36. 



Some specimens of Lyngbj'e's Scytonema myochroiis f. simplex (Hy- 

 drophyt. p. 96) are according to Flaliault's determination identical with 

 this species. I have found it in collections from Thorshavn (Str.); and 

 Grothusvatn (S and 6"). 



35. Tolypothrix tenuis Kiitz. Joh. Schmidt emend. 

 Specimens collected by Lyngbj^e »in rupe Kirkeboe ad Thorshavn« 



and named by him Conferim myochroiis f. simplex (Hj'drophyt. p. 96) 



Botany of the Færoes j^. 



