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Eucladium
verticillatum (Musci) second Ontario station http://www.mobot.org/plantscience/ResBot/index.htm Originally published in Evansia 7(1): 15. 1990. Republished with permission. |
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Eucladium verticillatum
(Musci) second Ontario station P. M. Eckel The first collections of the moss Eucladium
verticillatum (Brid.) B.S.G. for Ontario were made by C.E. Garton
(CANM!) from the Thunder Bay District, Sibley Peninsula, Nos. 2984 &
4310. The present collections represent the known
northeastern range limits of the species, which has its major expression in
west to southwestern areas of North America (although there is a literature
report for the Northwest Territories by Ireland, et al., 1987). Brassard
(1983) has excluded the species from the Newfoundland flora. Eucladium verticillatum is
often confused with Hymenostylium recurvirostrum (Hedw.) Dix.,
which is more frequent in similar habitats, often growing mixed with Didymodon
tophaceus. Extensive exposures of seepy limestone-dolomite strata
along the Niagara escarpment in Ontario and New York State (where the species
has not yet been reported) should support additional populations ofE. verticillatum.
I would like to thank R. H. Zander for verifying these specimens. Eucladium verticillatum (Brid.) B.S.G. - Canada, Ontario, Regional
Municipality of Niagara, City of Niagara Falls; dolomite limestone gorge with
limestone, sandstone and shale interbeds, western slope with shade in the
late afternoon: a) Niagara Glen (Foster's Flats), base of
gorge of the Niagara River; a) Rich bottomland forest area. In seepage, on
and sheltered by calcareous ledges, associated taxa: Fissidens grandifrons,
Cratoneuron filicinum, Didymodon tophaceus, P. M.
Eckel, 19 February 1983, No. NF5 (BUF, CANM), No. NF12 (BUF). b) base of dolomite caprock, just S of the whirlpool
of the Niagara River, exposed face of sheer dolomite in sheet-seepage,
associated taxa: Parthenocissus quinquefolia, Amblystegium
tenax, Didymodon tophaceus, Gymnostomum aeruginosum;
P. M. Eckel, 2 May 1987, No. 8706231 (BUF). LITERATURE CITED Ireland, R. R., G. R. Brassard, W. B.
Schofield & D. H. Vitt. 1987. Checklist of the Mosses of Canada,
II. Lindbergla. Vol. 13: 1-62. Brassard, G.R. 1983. Checklist of the Mosses
of the Island of Newfoundland,Canada, Bryologist 86:54-63. Clinton
Herbarium, Buffalo Museum of Science, Buffalo. New York. 14211. |
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