FIGURES 1–16 in The new synonymy of Horikawaea with Cryptogonium and a proposal of Pseudocryptogonium, gen. nov. (Musci, Pterobryaceae)

FIGURES 1–16. Cryptogonium dubium (H.Akiyama China-1335). 1; male plants. 2; close-up of a perigonium (stem leaves are removed). 3; stem with several perigonia arranged in rows. 4; female plants. 5; close-up of a perichaetium, with filamentous pseudoparaphyllia at base. 6; two sporophytes. 7 & 8; close-up of peristome teeth. 9; almost detached operculum. 10; two perichaetial leaves and a sporophyte inside. 11; peristome teeth. 12; close-up of basal part of peristome teeth, with poration. 13; exothecial cells. 14; spores. 15; operculum. 16; cucullate calyptra.