The Botany of Iceland - 01.12.1928, Síða 12

336
JOHS. BOYK PETERSEN
siensis v. lanceola, N. radiosa v. minutissima, Pinnularia borealis, P. rnolaris,
P. subcapitata, P. s. v. sublanceolata, P. viridis v. commutata, Stauroneis
agrestis).
127. Rocky wall with trickling water; Vestdalur, altitude 150 m. 4/r
The algae forrned mucilaginous dark patches in the stone.
(Calothrix jrarietina).
128. Moss from cracks in rocky wall in Vestdalur 4/7.
(Mesotænium sp., Achnanthes lanceolata, A. marginulata, Caloneis
fasciata, Cymbella Cistula, Diatomella Balfouriana, Diploneis ovalis v.
oblongella, Eunotia diodon v. diminuta, E. gracilis, E. prærupta v. musci-
cola, Fragilaria construens v. pusilla, F. laevissima, F. mutabilis, Navicula
Atomus, N. cocconeiformis, N. perpusilla, N. p. v. Flotowii, Nitzschia de-
bilis, N. Palea, Pinnularia borcalis, P. gracillima, P. viridis v. commutata).
129. Dark spots on rocky wall in Vestdalur; altitude 150 m. 4/7.
(Zygogonium ericetorum, Desmonema Wrangelii, Schizothrix arenaria,
Gloeocapsa Magma, Achnanthes marginulata, Caloneis fasciata, Denticula
frigida, Diatomella Balfouriana, Diploneis ovalis v. oblongella, Eunotia
gracilis, E. paludosa, E. prærupta f. curta, Hantzschia amphioxys, Melo-
sira Roeseana, Meridion circulare, Navicula cocconeiformis, N. contenta,
N. mutica f. Cohnii, N. Kotschyi, N. Rotæana, N. perpusilla, N. terrestris,
Pinnularia borealis, P. Brebissonii, P. gracillima, P. intermedia, P. lata,
P. parva v. minuta, Synedra Acus, Tabellaria flocculosa).
131. In a yard in Seyðisfjörður 5/t.
(Prasiola crispa, Hantzschia amphioxys v. genuina, Navicula Atomns,
N. nitrophila, Pinnularia borealis).
North lceland.
133. Ditch by the roadside south of Akureyri 9/t.
(Diatomella Balfouriana, Meridion circulare, Navicula Atomus, N.cincta
v. Heufleri, N. c. v. leptocephala, N. contenta, Nitzschia Clausii, N. communis
v. abbreviata, N. thermalis v. minor, Pinnularia appendiculata v. budensis,
P. parva v. minuta).
135. On turf hy the roadside a little south of Akurejmi 9/t.
(Prasiola crispa, Cymbella ventricosa, Diatomella Balfouriana. Di-
ploneis ovalis v. oblongella, Hantzschia amphioxys v. xerophila, Navicula
cincta v. Heulleri, N. mutica f. Cohnii, N. m. f. minima, N. m. f. rhomboidea,
N. viridula, Nitzschia amphibia, N. perpusilla, Pinnularia appendiculata
v. irrorata, P. borealis, Rhopalodia ventricosa).
137. Naked ground near the high road south of Akureyri 10/7.
(Diatomella Balfouriana, Hantzschia amphioxys v. xerophila, Navicula
cincta v. Heufleri, N. mutica f. Cohnii, N. m. f. minima, N. m. f. ventricosa,
Nitzschia communis v. abbreviata, Pinnularia borealis, P. parva v. minuta).
138. Clay washed down bjr the rain, with a scattered growth of
mosses and protonema; south of Akureyri 10/7.
(Hantzschia amphioxys v. xerophila, Navicula cincta v. Heufleri, N. ter-
restris, Pinnularia borealis).