The Botany of Iceland - 01.12.1932, Qupperneq 5

FUNGI OF ICELAND
453
(17) E. Rostrup: Islands Svampe, Botanisk Tidsskrift, 25. Bind,
pp. 281—335. Kobenhavn 1903.
(18) E. Rostrup: Liste over Svampe samlede paa Island 1903—05
af Helgi Jónsson, Ó. Daviðsson og C. V. Prytz — in manu-
script in the Library of the Botanical Garden. Copen-
hagen 1905.
The figures in brackets are quoted in the following in refe-
rences to tliis Iiterature.
The first botanical investigation of Iceland which included the
fungi was made by J. G. König in 1765—66 with the object of
collecting plants for the Flora Danica.1 His collection of fungi forms
the basis of tlie lists contained in C. F. Muller’s Enumeratio (1)
and in Zoéga’s Flora Islandica (2). These lists comprise respec-
tively 11 and 12 species which, however, are identical except for 2.
In 1783 Bjorn Halldórsson’s Grasnytiar (3) appeared. In this 7
species of fungi are mentioned by their Icelandic names, of which
2, at any rate, are not to be found in the above-mentioned lists.
Tliis brings up the number of species to 15. These 15 species
reappear without additions in (4), (6), (7), and (8). Thienemann’s
and Gunther’s investigations (9) of the Icelandic vegetation in 1820
and 1821, and Hj a ltalín’s íslenzkGrasafræði (10) add each one species
to the number. Robert’s and Vahl’s lists (11) and (12) bring up
the number to 19. L. Lindsay’s Flora of Iceland 1861 (13) only
gives 13 species, adding no new ones, and 5 of the earlier 6 species
are declared by Berkeley (p. 70) to be impossible to determine.
Rostrup, however, regards tliis reduction as partly unfounded (15). —
The 19 species of fungi given in these earlier lists are the fol-
lowing: —
Humaria granulata (Bull.), Geopyxis Ciborium (Vahl), G. cupu-
laris (L.), Chlorosplenium aeruginosum (Fl. D.), Lachnea scutellata (L.),
Helnella atra König, Clavaria muscoides (L.), Psalliota campestris (L.),
Psilocybe ericaea (Pers.), Russula fragilis (Pers.), Boletus scaber Bull.,
B. laevis Fr., B. bovinus L., B. luteus L., Globaria Bovista (L.),
Bovista clavata Fr., Crucibulum vulgare Tul.
The lists further contain a couple of Agaricaceae wliich must
be considered doubtful. The same applies to Botetus laevis, B. bovi-
1 See Carl Christensen, Den Danske Botaniks Historie, p. 118.