University of Tasmania
shirley-thallus-parmelia-1918.pdf (1.54 MB)

The Thallus of the genus Parmelia

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posted on 2023-11-22, 09:38 authored by John Shirley
In the ordinary works on Lichenology, the main object of the author is to give such a description of a species as will enable a student to determine a plant by himself, by examination of the thallus with a pocket lens, and of the apothecia and spores by the aid of a microscope.
The spermagonia and spermatia may be briefly referred to, but other matters are usually ignored. In this paper no reference will be made to a macroscopic study of the thallus, or to the histology of the apothecium, its paraphyses or spores.
In preparing the material for this paper, serial sections of the following lichens were cut, stained, and mounted for examination : Parmelia tiliacea, Ach., P. tinctorum, Despr., P, perlata, L., P.limbata, Laur., P. lara, M.A., P. perforata, Arch., P.latissima, Fee, P. placorhodioides, Nyl., P. mundata, Nyl., P. olivacea, L., P.cetrata v. sorediifera, Wain., and P. saxatilis v. signifera, M.A. —


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Papers & Proceedings of the Royal Society of Tasmania



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In 1843 the Horticultural and Botanical Society of Van Diemen's Land was founded and became the Royal Society of Van Diemen's Land for Horticulture, Botany, and the Advancement of Science in 1844. In 1855 its name changed to Royal Society of Tasmania for Horticulture, Botany, and the Advancement of Science. In 1911 the name was shortened to Royal Society of Tasmania..

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