Studies on Hepaticae, LXV Lepidoziaceae subf. Zoopsidoideae (2): Zoopsis

The confused history of the Zoopsidoideae is reviewed; it is shown that tax a which fit in Zoopsis or Zoopsidella were previously assigned to the unrel ated genera Alobiella, Cephalozia, Alobiellopsis, Regredicaulis, and Paracr omastigum. Zoopsis is sharply separated from the immediately allied genera (Zoopsidella, Pteropsiella, Monodactylopsis) by: prevalent terminal-lateral branching of sterile plants; by a sera with many small inner rows surround ed by a ring of eight cells, Zoopsis is monographed and shown to consist of three subgenera: Eozoopsis Schust. [with Z. macrophylla Schust., Z. leitge biana (Carr. & Pears.) Steph.], Amphizoopsis Schust. [with Z. ceratophylla (Spr.) Schust.] and Zoopsis [with five species, Z. setigera Goebel, Z. setu losa Leitg., Z. argentea (H.f. & T.) G.L. & N., Z, liukinensis Horik., and Z. nitida Glenny, Braggins & Schust.] Within the genus a gradual reduction of leaves (and underleaves) occurs from Z, macrophylla, in which many-celle d appendages prevail, to Z. nitida, in which recognition of leaves is virtu ally impossible and a vermiform gametophyte prevails.