Tortella

Tortella
Tortella tortuosa
Systematics
Subdivision : Bryophytina Class : Bryopsida Subclass : Dicranidae Order : Pottiales Family : Pottiaceae Genre : Tortella
Scientific name
Tortella
( Lindb. ) Limpr.

Tortella is a genus of akrokarpen mosses from the family pottiaceae .

features

Mosses of this genus usually form dense lawns and cushions. The individual shoots grow upright, are simple or branched and often rhizoid-felted in the lower part. The leaf shape varies from spatula or tongue-shaped to lanceolate linear, the leaf margins are usually whole or crenulated. The strong vein extends to the tip of the leaf or can also emerge. When dry, the leaves are usually curled, while when moist, they are upright to protruding or slightly bent back.

The leaf cells are elongated, rectangular, hyaline, smooth and in most species are sharply demarcated from the rounded, square, green and strongly papillary cells of the upper part of the leaf.

The ellipsoidal to cylindrical spore capsules on the elongated and upright seta often have thread-shaped and spirally wound peristome teeth, a long beaked lid and a hood-shaped calyptra.

Systematics

The worldwide common genus Tortella counts 51 (52) kinds.

Note on Tortella bambergeri : According to Köckinger & Hedenäs (2017), this should be discarded in the conventional view and consists of two types, namely Tortella fasciculata and Tortella pseudofragilis . The type material of Tortella bambergeri belongs in a broader sense to Tortella tortuosa .

Species list of Central European species (selection):

• Tortella densa
• Tortella fasciculata
• Tortella flavovirens
• Tortella fragilis
• Tortella humilis
• Tortella inclinata
• Tortella inflexa
• Tortella pseudofragilis
• Tortella tortuosa

swell

literature

• Jan-Peter Frahm , Wolfgang Frey : Moosflora (= UTB . 1250). 4th, revised and expanded edition. Ulmer, Stuttgart 2004, ISBN 3-8252-1250-5 .
• Martin Nebel, Georg Philippi (ed.): The mosses of Baden-Württemberg. Volume 1: General part, special part (Bryophytina I, Andreaeales to Funariales). Ulmer, Stuttgart 2000, ISBN 3-8001-3527-2 .

Individual evidence

1. ↑ Wolfgang Frey, Michael Stech, Eberhard Fischer: Bryophytes and Seedless Vascular Plants (= Syllabus of Plant Families. 3). 13th edition. Borntraeger, Berlin et al. 2009, ISBN 978-3-443-01063-8 , p. 178.
2. ↑ A farewell to Tortella bambergeri (Pottiaceae) as understood over the last decades, [1]

Web links

Commons : Tortella  - collection of images, videos and audio files