Anomodon

Family: Anomodontaceae(de), Order: Thuidiales(de)

The genus Anomodon consists of about 25 species, of which 5 can be found in Europe. The plants are more or less robust, and their principal stems are creeping and fixed on the ground. The branches often are only sparsely ramified. Frequently there are flagelliform branches (for example on the picture the flagella of Anomodon attenauatus can be seen).

The leaves are in dry state imbricate and are straight or slightly arcuate. In humid state they are widespread and sometime slightly secund. The leaves themselves are sometimes lanceolate, sometimes long lingulate. They are dentate at most at the tip. The midrib is strong and ends in the tip of the leaf.

The cells of the leaf blade are round and strongly papillose on both sides, so the leaf is opaque. At the base of the leaf the cells are a bit elongated and a bit clearer.

Anomodon viticulosus (Hedw.) Hook.&Tayl.

Within the genus the species Anomodon viticulosus is remarkable by its robustness: It often reaches length of about 10cm. It is the most frequent species of the genus. A further characteristics are the 2-3mm long leaves, which are attenuate and with a round, obtuse tip.

The species grows on shady rocks or on the barc of trees. It is rather frequent in chalk mountains, and a bit more rare otherwise.

The picture below shows Anomodon viticulosus together with Anomodon attenuatus on the barc of a tree in the Eistobel(german) near Isny (in the Allgäu, south germany). Anomodon viticulosus is the more robust moss with the long leaves, not the smaller, pinnate moss. In the middle on the right there is stem of Plagiochila asplenioides.

Anomodon viticulosus and Anomodon attenuatus

Anomodon viticulosus together with some other mosses on the bark of a tree.

Anomodon attenuatus (Hedw.) Hüb.

In contrast to the precedent species Anomodon attenuatus ist in most cases clearly, even regularly, simply pinnate. This species forms widespread turfs. But the single stems and branches are much more smaller: The leaves are about 1mm long. Long flagella nearly always exist. On the picture they can be seen as long filaments hanging off the turf.

The leaves are relatively broad, but muticous. Sometimes there are some teeth at the tip at the leaves.

Anomodon attenuatus grows as Anomodon viticulosus on rocks or barc. It can be found mostly in chalk mountains, and more rarely otherwise.

On the picture above some pinnate plants of Anomodon attenuatus can be seen between the more robust stems of Anomodon viticulosus. In reality the difference between "normal" branches and flagella was very clearly to see. On the picture this isn't the case any more.

by Michael Becker, 9/2000. Translated: 4/2002:
Last modification: 4/2002.