TY  - JOUR
A1  - Sipman, Harrie J. M.
A1  - Aptroot, André
T1  - Results of a botanical expedition to Mount Roraima, Guyana : 2., Lichens
T2  - Tropical bryology
N2  - Lichen exploration of the Upper Mazaruni District, Guyana yielded 273 species, of which 179 were found for the first time in the Guianas and 13 were as yet undescribed. A list of all taxa encountered is presented, with indications of habitat and distribution in the investigated area as well as first descriptions for the following 7 species: Buellia aptrootii, Byssoloma farkasii, Myriotrema guianense, M. neofrondosum, M. subdactyliferum, Ocellularia astrolucens, and Thelotrema albomaculatum. Mazosia bambusae is recorded for the first time from the Neotropics. The richest areas for lichens appear to be the rocky tablelands with scrub vegetation on top of the lower mountains. The slopes of Mount Roraima are of special interest because they support some montane species which are unlikely to be found elsewhere in the Guianas; otherwise they are less rich in lichens, probably because of the high humidity, which favours bryophyte growth.
Y1  - 1992
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/30209
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-302098
SN  - 0935-5626
N1  - The layout of the electronic version of this contribution differs from the layout of the original version published in the printed volume. Page numbers given in the metadata refer to the electronic version. Page numbers of the original version of this contribution in the printed volume are: 79-108.
IS  - 5
SP  - 79
EP  - 107
PB  - D. Quandt, Univ. Bonn, Nees Inst. für Biodiversität d. Pflanzen
CY  - Bonn
ER  -