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Published In: Die Natürlichen Pflanzenfamilien I(3): 942. 1907. (Nat. Pflanzenfam.) Name publication detailView in Biodiversity Heritage Library

Project Name Data (Last Modified On 3/23/2009)
Acceptance : Accepted
Project Data     (Last Modified On 3/23/2009)
General Reference:

Illustration & Map     (Last Modified On 3/23/2009)
Related Objects:
Illustrations: P.-J. Lin & B. C. Tan 1995 (Fig. 37, A–I).
Click here for distribution map.
Map: Hookeriopsis utacamundiana (Mont.) Broth. (Distribution in China)

Distribution     (Last Modified On 3/23/2009)
Habitat: on ground, tree base, decaying logs, boulders under partially dense forest canopy; alt. 400–2400 m.
Distribution: China, widespread in tropical East Asia (including Yakushima Is. of Japan) and the Pacific.

Specimens Examined     (Last Modified On 3/23/2009)
Specimens Examined:
Chinese specimens examined: Guangdong: Ru-yuan Co., P.-J. Lin 1291 (FH, IBSC), P.-J. Lin 869 (IBSC, MO); Shi-xing Co., P.-J. Lin et al. 4878 (FH, IBSC). Guangxi: Long-sheng Co., P.-C. Wu et al. 11496 (FH, IBSC, PE); Rong-shui Co., M.-Z. Wang 46035 (PE), 46224 (MO, PE); Tian-lin Co., P.-J. Lin et al. 2423 (FH, IBSC). Guizhou: Chi-shui Co., B. C. Tan 91-1049 (FH); Shizangdong waterfall, Crosby 16151A (MO); Mt. Fanjing, Crosby 15690 (MO). Hainan: Mt. Jianfengling, P.-J. Lin et al. 691 (FH, IBSC, MO). Hong Kong: Mt. Tai-Mo, P.- J. Lin et al. 1357, 2042 (IBSC). Taiwan: Chia-yi Co., S.-H. Lin 62 (H, MO); Hsin-chu Co., Shevock 14407 (MO); Kao-shiung Co., C.-C. Chuang 1020 (FH, IBSC, NY); Nan-tou Co., M.-J. Lai 11538 (H), M.-J. Lai 8229 (MO); Mt. Daxue, Iwatsuki & Sharp 3121 (FH, IBSC); Tai-tung Co., S.-H. Lin s.n. [Bryophytes of Taiwan Exsiccatae, ser. 3, 115, as Eriopus parviretus in part] (MO); Mt. Tianchang, K. Sawada s.n. (FH, IBSC). Yunnan: Jing-dong Co., J.-K. Zhang 1836-2 (FH, IBSC); Lv-chun Co., M. Zang 212 (FH, HKAS, IBSC); Xishuangbana, Redfearn et al. 33907 (IBSC, MO).

Notes     (Last Modified On 3/23/2009)
general taxon notes:
The variable nature of leaf morphology in the present species, especially the leaf apex and leaf marginal serration, is extreme. Plants with broadly obtuse leaf apices have been called Hookeriopsis secunda and those with very strong serration of leaf margins have been known as H. geminidens. There exists, however, an intergrading series of variations between these two extremes, an observation discussed by Tan and Robinson (1990) who recognized one species of the genus in East Asia. Incidentally, the specimen (no. 62 of S. H. Lin’s Exsiccatae Series 2, Bryophytes of Taiwan) was misidentified as Cyclodictyon blumeanum. It is Hookeriopsis utacamundiana


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1. Hookeriopsis utacamundiana (Mont.) Broth.   并齿拟油藓   bing-chi ni you xian
Nat. Pflanzenfam. I(3): 942. 1907. Thamniopsis utacamundiana (Mont.) Buck, Brittonia 39: 219. 1987. Hookeria utacamundiana Mont., Ann. Sci. Nat., Bot., ser. 2, 17: 247. 1842. Type. Sri Lanka.
Hookeriopsis geminidens Broth., Philipp. J. Sci. 5: 156. 1910.
Hookeriopsis sumatrana (Bosch & Sande Lac.) Broth., Nat. Pflanzenfam. I(3): 942. 1907. Lepidopilum sumatranum Bosch & Sande Lac., Bryol. Jav. 2: 42. 1862.
Thamniopsis secunda (Griff.) Buck, Brittonia 39: 219. 1987. Hookeriopsis secunda (Griff.) Broth., Nat. Pflanzenfam. I(3): 942. 1907. Hookeria secunda Griff., Calcutta J. Nat. Hist. 3: 280. 1843 [1842].  
Plants mat-forming, light green to reddish brown. Stems creeping, 3–7 cm long, 3–4 mm wide with leaves when dry, in cross section showing an outermost row of hyalodermal cells surrounding a layer of thick-walled, reddish colored cortical cells, a well differentiated central region of thin-walled parenchyma cells, without a central strand. Leaves complanate forming dorsal, ventral and lateral rows, slightly heterophyllous, flexuous when dry, concave when wet; lateral leaves mostly ovate-oblong, asymmetrical, 1.5–2.0 mm × 1.0 mm, broadly acute to acuminate, at times mucronate; margins not bordered, involute on one side, irregularly serrate, with bifid, unicellular teeth toward the apex; costae long, double, reaching beyond midleaf, spinose abaxially; dorsal and ventral leaves smaller than lateral ones, more acuminate; leaf cells narrowly rhomboidal, 56–90 µm × 13–16 µm, becoming shorter
at apex, rectangular at base, thin-walled, smooth, sometimes porose. Polygamous. Perichaetial leaves small, ovate, acuminate, with a few marginal teeth. Setae lateral, 20–30 mm long, reddish brown; capsules horizontal, 1.0–1.5 mm long; opercula conic-rostrate; peristome double, exostome and endostome typically hookerioid, basal membrane high; cilia absent. Calyptrae mitriform. Spores spherical, 8–10 µm in diameter, papillose.


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