Sporophyte structure in Neckeraceae.

Example of a perfect and a specialized sporophyte structure in Neckeraceae. a) Homalia trichomanoides gametophyte (i) and sporophytes (ii) with long setas and slightly inclined capsules; b) SEM view of well-developed hypnalean peristome in H. trichomanoides. c) Neckera pennata gametophyte (i) and sporophytes (ii) that have short setas immersed in perichaetial leaves and upright capsules; d) SEM view of reduced peristome in N. pennata. Pictures reprinted with permission of M. S. Ignatov and E. Ignatova.