Schistochila lehmanniana

Terrestrial, on tree ferns or logs, prostrate, pure green. Asexual reproduction unknown. Stems not decurved at apex, with abundant paraphyllia; paraphyllia on lateral and ventral sides of stem, unlobed, ventrally sulcate, 300–1750 μm long and 125–300 μm wide (not including cilia), ciliate-laciniate, with cilia with a single row of cells to 9 cells long; branches usually emerging on abaxial side of a reduced leaf, rarely emerging laterally from stem and not associated with reduced leaves. Lateral leaves incubously inserted, imbricate. Ventral lobe ovate to narrowly oblong, 2750–6900 μm long, 1100–2350 μm wide (not including cilia), abaxially with a single lamella that extends from a notch on basiscopic margin to near the end of the keel, sometimes with additional smaller lamellae, unistratose, rounded or apiculate at apex and not decurved, serrulate or serrate, often at base becoming ciliate or with laciniae similar in form to paraphyllia. Dorsal lobe 2325–6425 μm long, 1000–2600 μm wide (not including cilia), free for 0.3–0.4 of its length, asymmetrically ovate, adaxially sometimes with a single lamella near apex of keel, unistratose, acute at apex, serrate or serrulate, becoming ciliate at base. Keel between lobes 1 unistratose, bearing two wings that extend the entire length of keel; wings unistratose, entire or with a few remote teeth toward apex, the ventral wing wider. Underleaves 2–4-lobed, ovate to oblate in outline, 1250–3150 μm long, 1250–3250 μm wide (not including cilia), contiguous to imbricate, ventrally sulcate, often spreading from stem, ciliate to laciniate, rarely entire, reflexed to revolute along margins, with lamellae extending from lobe sinuses toward the base on surface facing substrate or sometimes without lamellae; lobes 1/4–1/2 of the underleaf length; lamellae entire or dentate; cilia with a single row of cells to 8 cells long. Leaf cells polygonal, throughout most of leaf 25–63 μm long, 24–50 μm wide, becoming more elongate toward base where 63–170 μm long, 20–43 μm wide, smooth, thin-walled, without prominent trigones, with up to 15 oil bodies per cell. Rhizoids magenta, in ill-defined fascicles at underleaf and ventral lobe bases away from stem apex. Androecia terminal on main axis; bracts similar to vegetative leaves, with 3–7 antheridia; bracteoles with 3–5 antheridia. Sporophytes terminal on main axis; coelocaule bearing 4–5 pairs of leaf-like bracts, with a few paraphyllia over surface; perianth present, cupulate, bearing a few longitudinally oriented lamellae, with wide and laciniate mouth. Capsule 3 (–4) -stratose. Elaters bispiral. Spores finely granulate.