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The Genus Paulia (Lichinaceae)‡

Published online by Cambridge University Press:  28 March 2007

Aino Henssen
Aino Henssen
Affiliation:
Fachbereich Biologie der Universität, D-3550 Marburg/Lahn, Federal Republic of Germany.
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Abstract

An emended circumscription of the genus Paulia Fée is given and the morphology and anatomy of the eight included species analysed in detail. Four new species are described, P. gibbosa Henssen and P. rhizophora Henssen from Bermuda, P. tessellata Henssen from Bermuda and Mexico and P. stipitata Henssen from Puerto Rico. The new combination P. cubana (Tuck.) Henssen is made. The genus is characterized by an umbilicate thallus composed of reticulately arranged hyphae; apothecia without an excipulum, with branched paraphyses and thickwalled ascospores; and a member of the Chroococcales as phycobiont with brown gelatinous algal sheaths in which characteristic particles are deposited. The species differ in the external morphology of the thallus and apothecia. The species all grow on limestone, and most of them are confined to islands; the distribution of the genus is world-wide.

Type
Research Article
Information
The Lichenologist , Volume 18 , Issue 3 , July 1986 , pp. 201 - 229
Copyright
Copyright © British Lichen Society 1986

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Footnotes

Dedicated to Professor Rolf Santesson on the occasion of his seventieth birthday.

References

Dedicated to Professor Rolf Santesson on the occasion of his seventieth birthday.