500 
PILINIA Kiitz. 
176. P. maritima (Kjellm.) Rosenv., Gronl. Havalg., p.932. 
Found on rocks near high-water mark, intermingled in incrus¬ 
tations of blue-green algae. Bore sporangia in June. 
Found hitherto only on Sando: near Sand (!). 
Order MYCOIDEACEAE. 
ULVELLA Crouan. 
177. U. confluens Rosenv., Gronl. Havalg., p. 924. 
Specimens which quite agreed with the description and figures 
of Rosenvinge have been found epiphytic on Gigartina mamillosa. 
Found on open coasts between tide-marks. Rore sporangia in April. 
Along the Fseroese coasts it has hitherto been found on Str.: Vel- 
bestad (!). 
178. 1). fucicola Rosenv., Gronl. Havalg., p. 926. 
Found epiphytic on Fucus in flatus. 
Probably common. Found hitherto only on Syd.: Tvseraa (!). 
PRINGSHEIMIA Rke. 
179. P. scutata Rke. Algenflora, p. 81, Atlas tab. 25. 
Found as an epiphyte on different algae, e. g. Polysiplionia ur- 
ceolata, Ceramium rubrum, Sphacelaria, Laurencia pinnatiflda as also 
on Zostera marina. It has been found between tide-marks as well 
as in the sublittoral zone where the water is not very deep, and 
is met with both on open coasts and in sheltered localities. Sterile 
plants occurred in May and June, and sexual plants in June. 
This species is presumabty common along the Faeroese coasts. 
Found in the following localities: — Ost.: Ore(!); Str.: KvivigO), be¬ 
tween Thorshavn and HojvigO); Syd.: Trangisvaagfjord (!), Vaagfjord (!). 
Order GLADOPHORACEAE. 
UROSPORA Aresch. 
180. SJ. mirabilis Aresch. Rosenv., Gronl. Havalg., p. 918. 
The basal part of the plant (fig. 100) by which it is attached 
to rocks and stones, is peculiar in having intracellular as well as 
extracellular rhizoids. The latter, which seem to be the most com¬ 
mon, resemble very closely those of U. Wormskioldii , and in both 
cases they grow downwards along the sides of the shoot. The 
