2. Leptopterigynandrum incurvatum Broth. 卷叶叉羽藓 juan-ye cha-yu xian
Akad. Wiss. Wien Sitzungsber., Math.-Naturwiss. Kl. Abt. 1, 133: 577. 1924. Type. China: Yunnan, Piepum (Piepen), Handel-Mazzetti 4743 (holotype H).
Plants slender, stout, dark yellowish green in dense mats. Stems creeping, with dense rhizoids, erect-ascending above, pinnately branched; branches rather short, slightly circinate when dry. Leaves imbricate, ovate or
broadly ovate, gradually tapering to a lanceolate or narrowly lanceolate apex, flatly spreading, slightly secund, up to 1.4 mm long; margins plane, slightly recurved, entire or almost entire; costa double, short and weak; leaf cells rhomboidal, marginal cells smaller, opaque, rectangular or subrounded, thick-walled, smooth; branch leaves oblong-ovate, acuminate above. Dioicous. Inner perichaetial leaves erect, lanceolate; laminal cells linear, basal cells loosely rectangular or elliptic-hexagonal; costa inconspicuous. Setae slender, ca. 1.0 cm long, reddish; capsules elliptical, erect; exostome teeth lanceolate, smooth, loosely nodulose; cilia absent.