Hagiastrum = Holy starrulet; ἅγιον, ἄστρον.
Histiastrum = Star with enveloping tissue; ἱστιόν, ἄστρον.
Tessarastrum = Starrulet with four rays; τέσσαρα, ἄστρον.
Stephanastrum = Garland-starrulet; στέφανος, ἄστρον.
Dicranastrum = Fork-starrulet; δίκρανον, ἄστρον.