The Botany of Iceland - 01.12.1928, Qupperneq 11

THE AERIAL ALGÆ OF ICELAND
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112. On earth in a stone fence round a potato field; Hafrafell 2/7.
(Prasiola crispa, Cymbella incerta v. naviculacea, Diatomella Bal-
fouriana, Diploneis ovalis, Epithemia Zebra v. porcellus, Eunotia præ-
rupta f. curta, Gomphonema angustatum, Navicula mulica f. Cohnii, N. m. f.
minima, N. m. f. rhomboidea, Nitzschia amphibia, Pinnularia borealis).
113. On stones in a fence; Hafrafell 2/i.
(Prasiola furfuracea, Cymbella aequalis, C. ventricosa, Diatomella
Balfouriana, Fragilaria virescens, Gomphonema angustatum v. productum,
Melosira crenulata, Navicula mutica f. Cohnii, Nitzschia fonticola, N. Palea,
Pinnularia borealis, P. intermedia, Rhopalodia gibberula).
114. On earth at the base of a fence; Hafrafell 2/t.
(Prasiola crispa, Cymbella incerta v. naviculacea, C. naviculiformis,
C. ventricosa, Diatomella Balfouriana, Melosira crenulata, Navicula Atomus,
N. mutica f. Cohnii, N. m. f. minima, Pinnularia borealis, P. subcapitata).
121. On the ground near a house; Sej'ðisfjörður 4/7.
(Prasiola crispa, Hantzschia amphioxys f. xerophila, Navicula Atomus,
N. Borrichii v. subcapitata, N. mutica f. Cohnii, N. m. f. minima, Nitzschia
communis v. abbreviata, Pinnularia borealis, P. intermedia).
122: Mosses on rock with trickling water; Vestdalur 4/7.
(Desmidiaceae, Achnanthes Biasolettiana?, A. lanceolata, Anomoeoneis
brachysira, Caloneis fasciata, Cymbella æqualis, C. gracilis, C. ventricosa,
Diatoma hiemalis, Diatomeila Balfouriana, Diploneis ovalis v. oblongella,
Epithemia Zebra, E. Argus, Eunotia lunaris, E. prærupta f. curta, E. p. f.
bigibba, E. pectinalis f. minor, Gomphonema parvulum, G. subclavatum,
Hantzschia amphioxys, Navicula cocconeiformis, N. gracilis v. schizone-
moides, N. perpusilla, N. Rotæana, Nitzschia sinuata, Pinnularia borealis,
P. gracillima, P. viridis, Rhopalodia gibba, R. ventricosa, R. rupestris,
R. gracilis, R. gibberula (Diatoms partim det. E. 0strup)).
123. Moss on the ground; Vestdalur at an altitude of about 80 m. 4/7.
(Mesotænium sp., Schizothrix Friesii, Achnanthes marginulata, Ano-
moeoneis brachysira, Cymbella gracilis, Eunotia exigua, E. paludosa,
E. prærupta f. curta, E. p. v. muscicola, E. p. v. tetraodon, Fragilaria
virescens, Frustulia vulgaris, Gomphonema angustatum v. productum,
Melosira granulata, Navicula contenta. N. perpusilla, N. Rotæana, Pinnu-
laria appendiculata, P. borealis, P. muscicola, P. subcapitata, Stauroneis
anceps).
124. Moss-layers on stones in dry bed of streamlet; Vestdalur 4/7.
(Achnanthes marginulata, Cymbella ventricosa, Diatomella Balfouriana,
Eunotia paludosa, E. prærupta v. muscicola, Navicula anglica v. minuta,
N. cryptocephala v. angusta, N. perpusilla, Pinnularia gracillima, P. viridis
v. commutata, Rhopalodia gibberula).
125. Naked ground by the roadside in Vestdalur 4/7.
(Anomoeoneis brachysira, Aclinanthes marginulata, Caloneis Silicula
v. minuta, Cymbella incerta, Eunotia gracilis, Frustulia vulgaris, Gom-
phonema angustatum v. productum, Navicula cocconeiformis, N. falai-