ALPINE FLORA AND FERNS OF NORWAY. 317 
between them; fronds alternate, lanceolate; pinne deeply 
serrate, obtuse ; sori crowded in the middle, generally two-rowed, 
but finally confluent. It bears fruit late in August.” 
A. Finrx Femina, Bernh.; Fl. D. tab. 2,436.—Common on 
rather damp places in copses and forests to East Finmark. Grows 
on the Fjelds up to and a little over the limit of fir. A luxuriant 
form, frequently attaining a height of 3 feet, is found in small 
valleys near brooks and rivers. Bears fruit from June to Sep- 
tember. 
A. Apiantum nicrum, L.; Fl D. tab. 250.—Occasional in 
clefts of the rocks. Has hitherto only been found on the western 
coast from Stavanger to Romsdal. Grows on Findée and 
Rennesoe, in Stavanger Fjord, and also near Stavanger. It 
appears to thrive best on low grounds near the sea, and generally 
on a substratum of granite. It bears fruit in the autumn. 
A. Tricnomanes, L.; Fl. D. tab. 119—Common in shady 
places in clefts of the rock, as far north as Salten in Nordland, 
probably higher. On the mountains it vanishes below the limit 
of fir, and scarcely attains a higher altitude in the southern parts 
of the country than 1,200 to 1,600 feet above the sea. Bears 
fruit from July to September. 
A. viriDE, Huds.; Fl. D. tab. 1,289.—Bears a striking re- 
semblance to the last. Occasional in clefts of the rocks, and in 
moist shady places from the south of Aggershuus Stift, eg., near 
Porsgrund, Brevig, and Christiania down to the sea. More 
frequent on Fyjeld tracts up to East Finmark. It mounts up 
above the birch-limit to about 3,500 feet above the sea. Bears 
fruit at different times, according. to altitude. 
A. SEPTENTRIONALE, Sw.; Fl. D. tab. 60.—Very common on 
rocks, stone fences, walls, &c., up to East Finmark. Grows on 
the Fjelds to same altitude as the last. Bears fruit according to 
altitude. 
A, Breynu, Retz—Not common. Grows on low ground, in 
clefts of the rock. In Aggershuus Stift, Professor Blytt found it 
near Laurvig, on Sandoé, Nordre Aaroé, Ostre Bolleren, Drobak, 
on Nesodden, near Helvig, near Bekkelag close to Christiania. 
In Bergen Stift it has been found in Lerdal; also in Romsdal, 
and on Korsvigberg, near Throndhjem. Generally found on 
substrata of granite, lime, or slate. Bears fruit in July and 
August. 
