Tropicos | Name - !Pogonatum microstomum (R. Br. ex Schwägr.) Brid.

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!Pogonatum microstomum (R. Br. ex Schwägr.) Brid.

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Project Name Data (Last Modified On 4/3/2009)

Acceptance : Accepted

Project Data (Last Modified On 5/6/2009)

General Reference:

Wu Peng-cheng, M. R. C. & S. He. 2005. Sematophyllaceae–Polytrichaceae. 8: viii +385 pages. In Moss Fl. China. Science Press & Missouri Botanical Garden, Beijing, New York & St. Louis.

Illustration & Map (Last Modified On 5/6/2009)

Illustrations:

Pogonatum microstomum (R. Br. ex Schwägr.) Brid. (Figs. 1–13.)

Map:

Distribution (Last Modified On 5/6/2009)

Distribution:

Habitat: mostly on high-elevation forest ground, soil slopes, or on rocks covered with soil; alt. 310–4400 m.

Distribution: China, the Himalayan region, and South Asia.

Specimens Examined (Last Modified On 5/6/2009)

Specimens Examined:

Chinese specimens examined: Sichuan: Dao-cheng Co., S. He 31668, 31858 (both in MO, PE), M.-Z. Wang 814118a (PE); Hui-li Co., Handel-Mazzetti 955 (H); Li-tang Co., S. He 31875 (MO, PE); Ma-er-kang Co., S. He 31152 (MO, PE); Mt. Omei, Redfearn 34654 (MO); Xiang-cheng Co., S. He 31777 (MO, PE); Ya-jiang Co., S. He 31964 (MO, PE); Yan-yuan Co., Handel-Mazzetti 2199 (H). Taiwan: Nan-tou Co., Shevock 17895, 17870 (both in CAS, MO); Tai-chung Co., Shevock 18043 (CAS, MO); Tai-pei Co., S.-H. Lin s.n. [Bryophytes of Taiwan Exsiccatae ser. 5, no. 237 (MO)]. Xizang: Cuo-na Co., Y.-C. Yang 54 (HKAS); Lin-zhi Co., Z.-X. Tan 18(2) (PE); Ya-dong Co., G.-X. Fu 413 (PE). Yunnan: An-ning Co., S.-Y. Zeng 278 (HKAS); Da-li Co., Redfearn et al. 1557 (MO); Jing-dong Co., W.-M. Zhu 46 (HKAS); Kunming City, R.-C. Qin 18 (PE), R. Xu 10, 16, 18, 42, 47 (all in PE), S.-Y. Zeng 392, 428 (both in HKAS); Xin-ping Co., Z.-Y. Wang 28 (PE); Yang-bi Co., Redfearn et al. 327, 368, 382, 735 (all in MO); Zhen-kang Co., Q.-W. Wang 8117, 8225 (both in PE), Q.-W. Wang 8025 (MO).

Notes (Last Modified On 5/6/2009)

general taxon notes:

The plant sizes of Pogonatum microstomum are variable. It is characterized by its leaf margins that are sharply serrate and bistratose, and by the apical cells of lamellae, which are double bottle-like.

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9. Pogonatum microstomum(Schwaegr.) Brid. 小口小金发藓 xiao kou xian jin fa xian

Bryol. Univ., 2: 745. 1827. Polytrichum microstomum R. Brown ex Schwaegr., Sp. Musc. Suppl. 2(2): 10. f. 154. 1826. Polytrichum microstomum R. Brown, Trans. Linn. Soc. London 12: 569. 1819, nom. nud. Type: Europe.

Pogonatum longicollum P.-C. Chen & T.-L. Wan in P.-C. Chen et al., Gen. Musc. Sin. 2: 304. 1978, nom. illeg. Type: China. Yunnan, T.-L. Wan 5329a (PE).

Pogonatum macrocarpum Broth., Symb. Sin. 4: 135. 1929. Type: China. Yunnan, Kunming, Handel-Mazzetti 685 (holotype H).

Pogonatum microstomum var. ciliatum W.-X. Xu & R.-L. Xiong, Acta Bot. Yunnan. 6: 183. 1984. Type: China. Xizang, Gyirong Co., S.-K. Chen 265 (holotype YUKU; isotypes H, HKAS).

Pogonatum minutum Brid., Bryol. Univ. 2: 127. 1827, nom. illeg.

Pogonatum mirabile Horik., Bot. Mag. (Tokyo) 49: 671. f. 26. 1935. Type: China. Taiwan, Chia-yi Co., Mt. Morrison, Horikawa s.n.

Pogonatum paucidens Besch., Rev. Bryol. 18: 89. 1891. Type: China. Yunnan, bois de Ma eul Chan, Delavay s.n.

Pogonatum submicrostomum Broth., Symb. Sin. 4: 134. 1929. Type: China. Yunnan, Zhong-dian Co., Handel-Mazzetti 6870 (lectotype H); Sichuan, Mu-li Co., Handel-Mazzetti 7580 (syntype H).

Plants robust, light green, brownish green when old, in loose tufts. Stems single or with innovations, 5 cm high or more, ca. 1.8 cm in diameter with leaves; rhizoids pale brown, on base of stems. Basal leaves scale-like; upper leaves rigid, appressed or crisped when dry, erect-patent when moist, 0.5–1 cm × 1.5–2.0 mm, broadly lanceolate from an oval or round base, acute at apex; leaf margins sharply serrate, serration vanishing near sheathing base; costa reddish brown, grossly dentate at the back; lamellae densely arranged on ventral surface, 2–5 cells high, apical cells of lamellae large, double bottle-like, thin-walled; basal leaf cells rectangular, ca. 90 µm × 18 µm, narrower toward sheathing base; upper leaf cells rounded-quadrate to slightly rectangular, ca. 15 µm in diameter. Dioicous. Setae up to 3 cm long, sometimes 2–3 in a perichaetium; capsules erect or inclined, reddish brown, up to 6 mm long, 2.5 mm in diameter; exothecial cells thick-walled; opercula rounded-conical with a short beak; peristome teeth 32, with brownish stripes. Calyptrae covering the whole capsules. Spores spherical, 8–15 µm in diameter.