Smith, C. W., D. E. Gardner, and W. J. Hoe. 1997. Foliicolous Hawaiian cryptogams. Abstracta Botanica 21:163-167.
ABSTRACT
Foliicolous cryptogams are poorly represented in the flora of the Hawaiian Islands. There are 25 truly foliicolous lichens with a further 10 corticolous species opportunistic on leaves. One alga, the parasitic Cephaleuros virescens, is abundant but there is also a number of undetermined unicellular green algae present. Trentepohlia is occasionally epiphyllous in wet, exposed situations. Six species of leafy liverworts are reported, all but one in the genus Cololejeunea, together with the hornwort Dendroceros crispus. Mosses are extremely rarely epiphyllous. Seventeen species of foliicolous fungi from three families are reported but this group has been little studied. The paucity of foliicolous cryptogams is probably not only the result of the extreme geographic isolation of the Islands but also extirpation of the indigenous flora resulting from deforestation by the aboriginal peoples, further exacerbated by the ravages of feral ungulates introduced after contact with western civilization.
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