Tasmania
has seven native species of Rytidosoperma. These are mostly
species of open subalpine to alpine areas. Several other genera were previously included
in Danthonia. The distinctive features of the whole group are
that the base of the fruit has a callus of stiff hairs (often
spreading, and becoming conspicuous at the time of fruiting), and
that often body of the fruit has tufts of hairs. The other genera
mostly have larger florets (lemma bodies > 3mm, and lobes >5mm).
Notodanthonia lack the tuft or row of hairs immediately
above the base of the fruit. Danthonia
(in its strict sense) doesn't have awns, whereas the other genera
do.
Austrodanthonia is a large
genus of native species. |