FIG. 2 in A complete description and conservation assessment of Riella affinis Howe & Underwood (Riellaceae, Sphaerocarpales) new to continental Europe

FIG. 2. — Habitat, LM and SEM images of Riella affinis Howe & Underwood: A, habitat at the Caja lagoon; B, one individual showing the lobulate wing; C, thallus apex showing a developing winged female involucre with a sporophyte enclosed and antheridia solitary or in small groups in sinuses of the thallus wing (arrowed); D, E, two female involucres showing the variation in involucre wing morphologies; F, SEM image of female involucre showing an interrupted wing (all from VALBriof. 11.797). Scale bars: B, 5 mm; C, 500 μm; D, F, 200 μm; E, 300 μm.