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Published In: Kungliga Svenska Vetenskapsakademiens Avhandlingar i Naturskyddsärenden 14: 110. 1956. (Kung. Svenska Vetenskapsakad. Avh. Naturskyddsärenden) Name publication detail

Project Name Data (Last Modified On 3/16/2009)
Acceptance : Accepted
Project Data     (Last Modified On 3/16/2009)
General Reference:

Illustration & Map     (Last Modified On 3/16/2009)
Related Objects:
Illustrations: X.-J. Li (ed.) 2000 (Pl. 15, figs. 11–19); T. Cao & Vitt 1986 (Figs. 53, 54).
Click here for distribution map.
Map: Schistidium strictum (Turner) Loeske ex Mårtensson (Distribution in China)

Distribution     (Last Modified On 3/16/2009)
Habitat: on dry boulders and rocks, from lowland to summit areas; alt. 850–4000 m.
Distribution: China, Japan, India, Russia, Europe, and North America.

Specimens Examined     (Last Modified On 3/16/2009)
Specimens Examined:
Chinese specimens examined: Hebei: Mt. Wuling, J.-X. Ji c46 (IFSBH). Heilongjiang: Ning-an Co., Da-hai-lin, C. Gao & G.-C. Zhang 9225 (IFSBH); Yu-chun City, Dai-ling, C. Gao 256 (IFSBH). Henan: Song Co., J.-X. Luo 408b (MO, PE). Hubei: Mt. Shennongjia, Aug. 1982, X.-W. Zhang s.n. (PE); Mt. Wudang, Silverti 1907 (BM). Jilin: Jiao-he Co., Lao-ye-ling, C. Gao 1542 (IFSBH); Mt. Changbai, Koponen 37225 (H), C. Gao 7310 (IFSBH). Liaoning: An-shan City, Mt. Qianshan, C. Gao 1970 (IFSBH); Ben-xi Co., C. Gao & G.-C. Zhang 8389 (IFSBH). Nei Mongol: Ning-cheng Co., Hei-li-he, Aug.1963, Unknown Collector s.n. (IFSBH). Qinghai: Nang-qian Co., B. C. Tan 95-167 (FH, MO). Shaanxi: Feng Co., M.-X. Zhang 1343 (IFSBH); Mt. Kuantoushan, J. Giraldi 2050 (BM, S, as G. filicaulis), J. Giraldi 2051 (BM, as G. sinensiapocarpa); Mt. Laoyeshan, J. Giraldi 1446 (BM, H, as G. filicaulis); Mt. Huashan, C. Gao & T. Cao 16767 (IFSBH), M.-X. Zhang 391 (IFSBH); Mt. Nanwutai, C. Gao & T. Cao 16606 (IFSBH), M.-X. Zhang 511 (IFSBH); Mt. Taibai, Z.-P. Wei 6450 (IFSBH). Sichuan: Mt. Gongga, S.-D. Zhao & Z.-F. Fang 001354 (IFSBH); Mt. Omei, C. Gao & T. Cao 18863 (IFSBH); Ruo-er-gai Co., S. He 30884a (MO). Taiwan: Mt. Nanhu, Noguchi 6312 (NICH); Mt. Tataka, Noguchi 6820 (NICH); Tai-tung Co., M.-J. Lai 9514 (NICH). Xinjiang: Fu-kang Co., B. C. Tan 93-830 (MO). Xizang: Bo-mi Co., G.-C. Zhang & J.-Y. Feng 14955 (IFSBH); Cha-yu Co., M.-Z. Wang 12846d (PE); Lang Co., M. Zang 1844 (HKAS); Long-zi Co., M. Zang 1147 (HKAS); Mi-lin Co., K.-Y. Lang 632a (PE). Yunnan: Kun-ming City, W.-X. Xu 50 (HKAS); Shao-tong Co., Handel-Mazzetti 8196 (H). Zhejiang: Mt. Jiulong, Z.-L. Liu 03208 (SHM).

Notes     (Last Modified On 3/16/2009)
general taxon notes:
Schistidium strictum is characterized by having reddish brown plants in loose tufts and a costa with a distinctly papillose abaxial surface. In China, Schistidium strictum is variable in leaf shape and the length of hyaline hair-points. Some specimens from Xizang have leaves with broad bases and long, denticulate hair-points, while many specimens from other areas have leaves with narrow bases and rather short hair-points.
Schistidium strictum has been treated as a synonym of several taxa by different authors. Roehling (1812), Bruch and Schimper (1845), Jones (1933), C. Gao (1977), and Crum and Anderson (1981) treated it under Grimmia apocarpa var. gracilis or Schistidium apocarpum var. gracile. Bremer (1980b) considered it to be a synonym of S. apocarpum. Sometimes, Schistidium strictum was considered to be synonymous with Schistidium gracile (Limpricht 1890 and Deguchi 1978), which is an incorrect placement because the basionym of Schistidium strictum (Grimmia stricta Turn.) was published earlier (Turner 1804), while that of Schistidium gracile (Grimmia apocarpa var. gracilis Schleich. ex Roehl.) was described later (Roehling 1812). More recently, Blom (1996) confirmed that the type of the latter contained two species: Schistidium trichodon and S. papillosum. Therefore, Schistidium gracile has no status in the genus and is treated here as a synonym of S. trichodon. Nevertheless, our concept of Schistidium strictum in China coincides with that of Blom (1996). The button-like papillae on the back of the costa are easily demonstrated in profile or in transverse section of a leaf. In most cases, the papillae are easily observed even under the stereo-microscope.
The type specimen of Grimmia filicaulis is not obtainable. We have examined two specimens identified as G. filicaulis by C. Müller (Giraldi 1446, 2050, both in H). It is evident that these specimens are S. strictum. The type of Grimmia sinensiapocarpa is conspecific with Schistidium strictum in having the same kind of papillae on the back of the costa and similar reddish brown plants in loose tufts. Recently, Ochyra (1998) made the new combination Schistidium sinensiapocarpum based on Grimmia sinensiapocarpa without providing any explanation.


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5. Schistidium strictum (Turn.) Loeske ex Märtensson   粗疣连轴藓   cu-you lian-zhou xian
Kung. Svenska Vetenskapsakad. Avh. Naturskyddsärenden 14: 110. 1956. Schistidium apocarpum var. strictum (Turn.) Moore, Proc. Roy. Irish Acad. Sci. 1: 359. 1873. Grimmia alpicola var. stricta (Turn.) Wahlenb., Fl. Lapp. 320. 1812. Grimmia apocarpa var. stricta (Turn.) Hook. & Tayl., Muscol. Brit. 37. 1812. Grimmia stricta Turn., Muscol. Hibern. Spic. 20. pl. 2, f. l. 1804. Type. Wales: Snowdon, A. D. Scott s.n. (lectotype BM, designated by Deguchi 1978).
Grimmia filicaulis C. Müll., Nuovo Giorn. Bot. Ital., n. ser., 3: 108. 1896. Type. China: Shaanxi (Schen-si), “In montibus In kia-po, ad saxa”, 24 June 1894, J. Giraldi s.n.
Grimmia sinensiapocarpa C. Müll., Nuovo Giorn. Bot. Ital., n. ser., 5: 187. 1898. Type. China: Shaanxi (Schen-si), sept., prope locum Zu-Lu, Oct. 1896, J. Giraldi s.n. (isotype BM).
Plants slender, elongate, up to 8 cm long, red to reddish brown, or dark green above, reddish brown to dark brown below, in loose tufts. Stems frequently branched, with more or less developed central strand in cross section. Leaves erect, imbricate when dry, spreading to wide-spreading when moist, ovate-lanceolate to lanceolate, keeled above, 2.2–3.1 mm long, with very short to long, denticulate, hyaline hair-points; margins recurved on both sides, bistratose above; costa percurrent, distinctly papillose on abaxial surface, consisting of nearly uniform cells in cross section; upper cells unistratose or in places bistratose, irregularly quadrate to quadrate, 5–7 µm wide, with thick, more or less sinuose walls; basal marginal cells oblate to short-rectangular, 7–11 µm × 8–10 µm, with transverse walls as thick as longitudinal walls; basal juxtacostal cells elongate-rectangular, with thick, straight to slightly sinuose walls. Autoicous. Perichaetial leaves larger than stem leaves. Setae shorter than capsules, ca. 0.4 mm long, straight; capsules immersed, reddish brown, oblong-ovate, erect, symmetric, ca. 1.1 mm long; exothecial cells oblate to rounded-quadrate, with thin walls; stomata present at base of urn; annuli absent; opercula obliquely beaked; peristome teeth lanceolate, reddish brown, perforate above, densely papillose throughout on both outer and inner surfaces. Calyptrae small, cucullate. Spores 9–11 µm in diameter, small, yellowish.


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