Mesocena = Hollow in the centre, annular; μέσον, κενός.

[280]

Dictyocha = Net-possessing; δίκτυον, ἔχω.

[281]

Distephanus = Double corona; διστέφανος.

[282]

Cannopilus = Hat with tubes; κάννα, πίλος.

[283]

Aulactinium = With radial tubes; ἀυλός, ἀχτίς.

[284]