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Moss China | Family List | Moss China V. 1 | Dicranaceae | Aongstroemia

Aongstroemia orientalis Mitt., Trans. Linn. Soc. London, Bot., ser. 2. 3: 154. 1891.


Aongstroemia uncinifolia (Broth.) Broth., Nat. Pflanzenfam. ed. 2, 10: 179. 1924. Anomobryum uncinifolium Broth., Philippine J. Sci. 5: 146. 1909.

Plants small, 4–7 mm high, somewhat shiny, yellow to yellowish brown, in loose tufts. Stems slender, julaceous, erect or ascending, simple or branched; central strand present. Leaves oval to oblong, clasping at base, 0.3–0.5 mm × 0.2–0.4 mm, broadly acute, sharply bent to one side at the tips; margins serrulate above, entire below; costa strong, percurrent or ending near the apex; upper cells rounded-quadrate to hexagonal, thick-walled, 6–9 µm × 5–7 µm; lower cells rectangular, 8–13 µm × 5–8 µm. Dioicous. Perichaetial leaves larger than the vegetative leaves, abruptly subulate. Setae straight, yellowish, 6–7 mm long; capsules erect, oblong-cylindric, 1.0–1.2 mm long; peristome teeth absent; annuli well developed, in 2 rows of large, thin-walled cells; opercula long-rostrate. Calyptrae cucullate. Spores 9–11 µm in diameter.

Type. India: Mussoori, Bell 164.

Chinese specimens examined: SICHUAN: Hui-li Co., Handel-Mazzetti 1848 (H); Mu-li Co., C. Gao 20196, 20587 (IFSBH); Yen-yuan Co., Handel-Mazzetti 2861 (H, MO). XIZANG: Mang-kang Co., M. Zang 5226, 5237 (KUN); Ya-dong Co., M. Zang 431, 447 (KUN). YUNNAN: Bi-jiang Co., M. Zang 5598 (KUN); Da-li Co., Redfearn et al. 1250, 1273 (MO); Kunming City, Handel-Mazzetii 688 (H), Redfearn et al. 2185 (MO), L.-S. Wang 81-8535, 81-8519 (KUN), W.-X. Xu 33 (KUN); Li-jiang Co., Handel-Mazzetti 6722 (H), W.-X. Xu 0266 (KUN); Rui-li Co., X.-J. Li 168 (KUN); Song-ming Co., Redfearn et al. 1825 (MO), M. Zang 5205 (MO). Wei-xi Co., M. Zang 2015 (KUN); Yang-bi Co., Redfearn et al. 737 (MO); Zhongdian Co., Handel-Mazzetti 6991 (KUN).

Habitat: on soil and rocks in alpine areas; Distribtuion: China, Himalayas, India, Myanmar, Indonesia, the Philippines, Japan, Russia (Siberia), Mexico, Central and South America.

Illustrations: Pl. 22, figs. 1–7.


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