Enigmella

Terrestrial, dioicous, with male plants slightly smaller. Asexual reproduction by globose gemmae produce at apices of hairs at pit of apex of female plants. Plant thallose, with two ranks of up to seven vestigial lamellae-like lateral leaves or bracts produced adaxially toward growing apical margins, without underleaves; thallus 0.5–6 mm long, 0.5–3 mm wide, unbranched or sparingly furcate, rounded at apex, sometimes erect or incurved at margins near apices, green when moist, becoming white when dry or yellowish when in well-illuminated sites, cordate to elliptic or rectangular, composed of an upper layer of hyaline cells and a basal layer of chlorophyllose cells; lateral leaves and bracts lunate, 4–6 cells tall, unistratose or 2–4-stratose basally, entire. Leaf and thallus cells polygonal, smooth, thin-walled, without trigones, with 1–2 finely granular, grey-brown, ellipsoid to spherical oil bodies. Rhizoids scattered abaxially, single-celled, hyaline. Androecia adaxial, with sometimes reddish bracts, each with 1–4 antheridia. Sporophyte produced at apex of thallus, surrounded by a pendent marsupium; marsupium cylindric, subterranean, covered with rhizoids, becoming detached before sporophyte maturity. Mature sporophytes unknown. Immature capsules cylindric, bistratose.