Thyroscyphus fruticosus (Esper, 1793). Colony silhouette. B. Hydrotheca variant with marginal cusps and operculum. C. Two hydrothecae with smooth margin and a male gonotheca, same scale as B. D. Presumed female gonotheca, same scale as B. – Scales: A = 1 cm; B-D = 0.5 mm. From Schuchert (2003)
