Radula visianica
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| Radula visianica | ||||||||||||
| C. Massal. |
Radula visianica is a liverwort species endemic to northern Italy and Austria .
description
Radula visianica is a small leafy species that is similar to Radula complanata . In Radula visianica , the lower lobe is a third as large as the upper lobe. The top is more or less pointed. The plant is dioecious . Sporophytes are not known.
Occurrence and habitat
Radula visianica was previously only found in two locations in northern Italy. The first was the Euganean Hills near Torreglia in the province of Padua , the second at Fiera di Primiero in Val Cismon in the Tridentine Alps. Radula visianica was last collected here in 1938. After an intensive search by bryologist René Schumacker in 2001 was unsuccessful, it was rediscovered in 2014. It grew on the ground or at the base of trees.
In Austria, too, the species was discovered in 2016 in some places in the south and north-eastern Alps, where it grows over mosses on moist, sunny dolomite rock. Frequent companion mosses include Barbula crocea , Orthothecium rufescens or Tortella tortuosa .
literature
- Filippo Marcabruno Gerola: La Radula visianica Mss. Nelle Alpi Tridentine , 1938.
- Karl Müller: The Liverworts of Europe , 1951–1958. OCLC 9573538
Individual evidence
- ↑ Heribert Köckinger: Die Horn- und Lebermoose Austria (Anthocerotophyta and Marchantiophyta), Catalogus Florae Austriae, Part II, Book 2; Publishing house of the Austrian Academy of Sciences. ISBN 978-3-7001-8153-8 , pp. 275f
Web links
- Brief description, PDF (9 kB)
- Radula visianica in the endangered Red List species the IUCN 2007. Posted by: Bryophyte Specialist Group, 2000. Retrieved on July 2 of 2008.