Plate I

 

Figs. 286-291. Fossombronia fimbriata Paton. 286. OM micrograph of a typical male plant showing the persistent rhizome, rhizoid mat and tufted leafy portion, note the antheridia (arrow); scale bar = 1 mm. 287. SEM micrograph of plant showing the lacerate leaves and strong basal stem; scale bar = 0.2 mm. 288. OM micrograph of a leaf; scale bar = 100 µm. 289. OM micrograph of the median leaf cells; scale bar = 100 µm. 290. SEM micrograph of leaf apices showing the exogenous gemmae (arrow); scale bar = 100 µm. 291. Higher magnification of a single exogenous gemma (arrow); scale bar = 100 µm. Fig. 286, 288, 289 from Scotland, Peebles, August 30, 1971, Paton 3544 (E). Fig. 287, 290, 291 from the holotype of F. fimbriata, Paton s. n. (holotype: BM acc. #79837).