New publication: Lectotypification of Umbilicaria leiocarpa (Umbilicariaceae)
By Geir Hestmark* in Graphis Scripta
The name Umbilicaria leiocarpa is reviewed and lectotypified using a specimen in the Herbarium Ramond at BBF.
Although the genus Umbilicaria is among the better known lichen genera, a number of typification questions for its species remain to be solved (e.g. Hestmark 1993, 2007, 2010, 2014, 2015, Jørgensen et al. 1994). Umbilicaria leiocarpa DC. is a saxicolous lichen with its main distribution in the European Alps and the Pyrenees (Du Rietz 1925, Frey 1933, 1936). The taxon also occurs sparsely in Norway and Sweden (Hasselrot 1941), where however the closely related U. rigida (Du Rietz) Frey tends to inhabit the same niches (Hestmark 1991, Gregersen et al. 2006). Umbilicaria leiocarpa was first described and named by de Candolle in the second volume of the third edition of the Flore Française (Lamarck & de Candolle 1805: 410–411). This edition was mainly the responsibility of de Candolle, who not only outlined his ‘natural’ system of plant systematics but gave particular attention to the cryptogams. [...]
Volume 29 (1–2): 12–17
* Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, UiO.