Translation 2816
Translation 2816
Translation 2816
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56<br />
2. Divarication of postequatorial horns is. medium. Somewhat<br />
smaller, w:ider, more bulky forms. Antapical horn points<br />
outerards . . . . . . . . . . . . . . . . Austriacum type 8.<br />
3. Postequatorial horns divaricate strongly.<br />
(a) Antapical horn is short, directed'in the same direction<br />
as the apical horn. The hypovalve is nôticeab7.y short.<br />
Scotticum t•,rEe IF.<br />
(b) Antapical horn is longer, and pointing outwards. The<br />
hypovalve is somewhat longer. ... Piburgense t,ype 10.<br />
Synopsis of families and Z^jnera.<br />
(287)<br />
i_ ^<br />
, +..ai<br />
ar e<br />
> > • ^^ ,^<br />
i.,,,,+,<br />
^@11^ \JTl ^:yStlî! ïotill) 1C.fGn^âucuiy e1lliJUl.lGl, ^uia ^c., `Jr<br />
fusiforLl, more or less cuspidate on both ends and often with<br />
corneous extensions (acicular cysts), or flatly polygonal or<br />
tetrahedral, with spines on the corners. Usually free-living<br />
(only the genus Stylodinium, which is not to be treated here,<br />
and two species of Cystodini um are attached). Reproduction is<br />
zoosporous or autosporous.<br />
Family: Cystodiniaceae nom. nov.<br />
With 4 genera:<br />
(a) Acicular cysts or elongated., non-cuspidate cysts.<br />
Genus: Cystodinium<br />
(b) Flat polygonal cysts with spines on the corners.<br />
Genus: Dinastridium.<br />
(c) Tetrahedral- cysts with spines on the corners:<br />
Genus: Tetradinium