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Table 1 Diagnostic characters of Scinaia species from the Azores

From: A re-evaluation of Scinaia (Nemaliales, Rhodophyta) in the Azores

Characters S. acuta S. furcellata S. interrupta
Arrangement of utricles in surface view Rosette, large cells not completely surrounded by small cells Rosette, large cells surrounded by small cells Polygonal
Shape of utricles in surface view Large and smaller cells polygonal to rounded Large cells rounded; small cells polygonal Polygonal
Shape of utricles in transversal view Widely obovate Ovoid to obovate Square to oblong
Spermatangium organization Sorus Sorus Not sorus
Rhizoidal filaments on the cystocarp Absent Absent Present
Fusion cell composition Not observed Basal cell, hypogynous cell and carpogonium Basal cell, hypogynous cell and branches, carpogonium and lowest gonimoblast cells