Campylopus flexuosus (Hedw.) Brid. ssp. pyriformis (Schultz) Dix., Stud. Handb. Brit. Mosses 95. 1896. Campylopus fragilis (Brid.) Bruch & Schimp. var. pyriformis (Schultz) Agst., Ned. Kruidk. Arch. 57: 332. 1950.

Plants small to medium-sized, 5–35 mm high, yellowish green to yellowish brown, in weakly shiny, compact tufts. Stems erect, simple or branched by innovations, not comose foliate, tomentose below. Leaves 2–7 mm long, lower ones appressed, upper ones somewhat flexuose or homomallous, erect-patent when moist, lanceolate, rather abruptly narrowed from an oblong-ovate base to a slender subula, ending in a channeled tip; margins plane, entire below, only serrulate near the apex; costa broad, occupying 2/5 – 3/5 the leaf base width, shortly excurrent, not ending in a hyaline point, smooth at back in the upper part, with only dorsal stereid band in transverse section; upper cells short-rectangular, moderately incrassate; basal cells rectangular or irregularly rhomboidal, rather thin-walled, hyaline; alar cells not well differentiated, usually hyaline, delicate. Dioicous. Setae straight when dry, cygneous when moist, light brownish; capsules erect, or somewhat inclined, ellipsoidal, slightly asymmetric, smooth when dry, brownish; opercula short-rostrate; annuli in 2–3 rows of large cells, deciduous; peristome teeth divided nearly to the middle, vertically papillose-striate below, reddish brown. Calyptrae fringed at base. Spores 8–17 µm in diameter, verrucose.

Type. Germany.

Chinese specimens examined: FUJIAN: Wuyi Shan (Mt.), P.-J. Lin 216 (IBSC). GUANGDONG: Ru-yuan Co., P.-J. Lin 595 (IBSC). GUANGXI: Shang-si Co., C. Gao et al. 2074 (IFSBH). JIANGXI: Lu Shan (Mt.), D.-K. Li 17071 (SHM), C. Gao 40816 (MO). JILIN: An-tu Co., Vitt 34818 (ALTA). SICHUAN: Dao-cheng Co., S.-D. Zhao & Z.-F. Fang 17437 (IFSBH); Mu-li Co., C. Gao et al. 20401 (IFSBH). YUNNAN: Da-guan Co., X.-J. Li 4055 (KUN); Gong-shan Co., M.-Z. Wang 9942(a) (PE); Jade Dragon Snow Mt., Croat 77624 (MO); Kunming City, W.-X. Xu 881 (YUKU); Lu-xi Co., X.-J. Li 72 (MO). ZHEJIANG: Chang-xian Co., Z.-L. Liu 1108 (SHM).

Habitat: on soil and rocks, or on bases of trees and rotten wood; Distribution: China, India, Mongolia, Russia, Europe, North and South America, and Australia.

Illustrations: C. Gao (ed.) 1994 (Pl. 72, figs. 8–14, as Campylopus fragilis var. pyriformis).