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Published In: Proceedings of the American Academy of Arts and Sciences 4: 277. 1859. (Proc. Amer. Acad. Arts) Name publication detailView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 3/13/2009)
Acceptance : Accepted
Project Data     (Last Modified On 5/4/2009)
General Reference:

Illustration & Map     (Last Modified On 5/4/2009)
Illustrations: Ptychomitrium wilsonii Sull. & Lesq. (Figs. 1–9.)
Map: Ptychomitrium wilsonii Sull. & Lesq. (Distribution in China)

Distribution     (Last Modified On 5/4/2009)
Distribution:
 
Habitat: on rocks or thin soil over rocks, sometimes rocks near streams.
Distribution: China, Korea, and Japan.
 

Specimens Examined     (Last Modified On 5/4/2009)
Specimens Examined:
Chinese specimens examined: Anhui: Huang Shan (Mt.), D.-K. Li 891 (SHM). Fujian: Ku-shan, near Fuzhou (Foochou) City, H.-H. Chung B203 (as P. dentatum, FH); Wuyi Shan (Mt.), D.-K. Li 17703 (SHM); Nan-ping Co., C. Gao & Z.-W. Aur 25568 (IFSBH). Yong-chun, D.-K. Li 10553 (SHM). Guangdong: Ru-yuan Co., B.-J. Lin 579 (IBSC); Loh-fau Shan (Mt.), Merrill 11173 (as P. dentatum, NY); Hui-yang Co., W.-T. Tsang 25649 (as P. polyphylloides, FH). Guangxi: Long-sheng Co., Jin & Hu 400 (IFSBH). Guizhou: Jiang-kou Co., Tan 91-680 (FH). Hainan: Diao-lou Shan (Mt.), Reese 17928 (NY); Lin-shui Co., Redfearn 36211 (ALTA, MO, NY, SMS). Hunan: Yi-zhong Co., W.-T. Tsang 13419 (as P. dentatum, NY). Jiangsu: Ming-ling, M. Zang 59 (HKAS); Nan-jing City, Y.-E. Yang 921 (BM). Jiangxi: Jing-gang Shan (Mt.), C.-H. Gao 25685 (SHM). Zhejiang: De-qing Co., P.-C. Wu 1228 (MO); Fu-yang, D.-K. Li 206 (SHM); Hang-zhou City, M. Zang 854 (HKAS); Jiu-long Shan (Mt.), R.-L. Hong & Z.-L. Liu 651 (HSNU); Yan-dang Shan (Mt.), D.-K. Li & C.-H. Gao 7955 (SHM); Xi-tian-mu Shan (Mt.), D.-K. Li 3727 (SHM); Ning-bo City, D.-K. Li 5815 (SHM); Tian-ta, D.-K. Li 6623 (SHM).
 
 

Notes     (Last Modified On 5/4/2009)
general taxon notes:
Ptychomitrium wilsonii is closely related to P. dentatum. It can be distinguished from the latter by the following character states: 1) leaves broader, oblong-ovate to broadly oblong-lanceolate, with obtuse or broadly acute apices; 2) capsules broader, ovoid to oblong-ovoid; 3) peristome teeth lanceolate, deeply cleft into 3–4, unequal divisions; and 4) spores large, 25–30 µm in diameter.
 

 

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9. Ptychomitrium wilsonii Sull. & Lesq.   威氏缩叶藓   wei-shi suo-ye xian
Proc. Amer. Acad. Arts Sci. 4: 277. 1859. Type. Japan.
Brachysteleum evanidinerve Broth., Sitzungsber. Akad. Wiss. Wien Math. Nat. Kl. Abt. 1, 131: 211. 1923. Type. China: Hunan, Chang-sha City, Handel-Mazzetti 12783 (holotype H-BR).
 
Plants medium-sized to rather large, 2–3(–4) cm high, green above, black-green below, sometimes black-brown throughout, in loose tufts. Stems simple or sparsely branched; central strand well developed. Leaves 3.9–4.1 mm long, incurved when dry, spreading to erect-spreading when moist, oblong-ovate to broadly oblong-lanceolate, slightly keeled or plane above, broadly acute or obtuse at the apex; margins plane, irregularly toothed in the upper half ; costa single, strong, gradually narrowed above, subpercurrent or ending just below the apex; upper leaf cells obscure, rounded quadrate to subquadrate, 10–13 µm wide, with slightly thickened walls; basal cells elongate, 35–70 µm × 8–11 µm, hyaline, thin-walled; alar cells often brownish. Autoicous. Perichaetial leaves similar to the upper stem leaves. Setae straight, yellow, ca. 4.5 mm long; capsules erect, ovoid to oblong-ovoid, ca. 1.5 mm long; annuli undifferentiated; peristome teeth lanceolate, split into 3–4 divisions nearly to the base, yellow above, reddish brown below, finely papillose throughout; opercula conic-rostrate, with a long, erect beak. Calyptrae mitrate, covering the middle to lower part of capsules, longitudinally plicate, lobed at base. Spores yellowish green, 25–30 µm in diameter, finely papillose.
 
 
 


 

 
 
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