Glyphomitrium tortifolium, a new species of the Glyphomitriaceae (Musci)

2005·0.07 MB·

by  Liu Yang

植 物 分 类 学 报 43(3): 278–280(2005) doi:10.1360/aps030010
Acta Phytotaxonomica Sinica http://www.plantsystematics.com
Glyphomitrium tortifolium, a new species of the
Glyphomitriaceae (Musci)
LIU Yang JIA Yu* WANG Mei-Zhi
(Institute of Botany, the Chinese Academy of Sciences, Beijing 100093, China)
Abstract Glyphomitrium tortifolium Y. Jia, M. Z. Wang & Y. Liu, a new species of the
Glyphomitriaceae from Mt. Jinfoshan, Chongqing, China, is described and illustrated. This
species is similar to G. elatum Takaki in being large and having leaves contorted, perichaetial
bracts long cuspidate, but differs in being larger and having leaves narrowly lanceolate,
perichaetial bracts slightly concave at the base of cusp.
Key words Glyphomitrium, Glyphomitrium tortifolium, Glyphomitriaceae, new species,
Chongqing, China.
In the course of checking the moss specimens at PE, we discovered a collection from Mt.
Jinfoshan, Nanchuan County, Chongqing, China, representing a new species.
Glyphomitrium tortifolium Y. Jia, M. Z. Wang & Y. Liu, sp. nov. Fig. 1
卷尖高领藓
Species nova affinis G. elato Takaki, a quo differt planta altiore, foliis anguste
lanceolatis, bracteis perichaetialibus long cuspidatis concavis ad basem cuspidis.
Plants robust, usually forming loose tuft, lightly yellow-brown in upper part, deeply
brown in lower part. Stems erect or nearly so, 2.5-3.2 cm long, irregularly branched, densely
leaved. Leaves crisped when dry, erect-patent when moist, linear-lanceolate, long acuminate,
flexous near apex, oblong at base, margin entire, revolute, 4-6 mm long, ca. 0.8 mm wide at
base. Costa stout, reddish brown, nearly percurrent. Laminal cells at median quadrate or
rectangular, wall incrassate, 34-124 µm long, 26-51 µm wide; apical leaf cells quadrate or
rectangular, 33-124 µm long, 26-51 µm wide; basal leaf cells rectangular, hyaline with the
slightly thickened-wall, 50-110 µm long, 5-13 µm wide; alar cells differentiated. Inner
perichaetial leaves ovate-oblong, margin entire, strongly sheathing, 3.0-3.3 mm long, 0.8-1.1
mm wide, convolute, long cuspidate, slightly concaved at base of cusp, costa slender. Seta
orange, 0.6-0.8 cm long. Capsule erect, cylindric, asymmetric, 1.7-2.3 mm long, 0.8-1.0 mm
in diam. Peristome teeth widely lanceolate, hyaline, 170-190 µm long, 60-70 µm wide at
base. Operculum obliquely short-rostrate. Spores densely and finely papillose, 16-20 µm in
diam. Calyptra not seen.
China. Chongqing (重庆): Nanchuan (南川), Mt. Jinfoshan (金佛山), 1942-08-16, H. J.
Chu (朱浩然) 49 (holotype, PE).
Glyphomitrium tortifolium resembles G. elatum Takaki in being large and having leaves
contorted, perichaetial bracts long cuspidate, but differs in being larger and having leaves
narrowly lanceolate, perichaetial bracts slightly concave at the base of cusp.
———————————
Received: 17 November 2003 Accepted: 4 January 2005
* Author for correspondence. E-mail: <[email protected]>.
No. 3 LIU Yang et al.: Glyphomitrium tortifolium, a new species of the Glyphomitriaceae (Musci) 279

Fig. 1. Glyphomitrium tortifolium Y. Jia, M. Z. Wang & Y. Liu. A, plant; B, leaf; C, apical leaf cells; D, basal leaf cells;
E, F, cross section of leaves; G, capsule with perichaetial leaves; H, perichaetial leaf; I, peristome; J, spores. Drawn by Q.
He from H. J. Chu 49.
280 Acta Phytotaxonomica Sinica Vol. 43
高领藓属(高领藓科)一新种——卷尖高领藓
刘 阳 贾 渝* 汪楣芝
(中国科学院植物研究所 北京 100093)
摘要 描述了高领藓属Glyphomitrium(高领藓科Glyphomitriaceae)一新种——卷尖高领藓G. tortifolium
Y. Jia, M. Z. Wang & Y. Liu。它因体形大,叶片卷曲和雌苞叶具长尾尖而与G. elatum Takaki相似,但是又因
它植物体更大,叶片狭披针形,雌苞叶在骤尖基部两侧略凹陷而区别于后者。
关键词 高领藓属; 卷尖高领藓; 高领藓科; 新种; 重庆; 中国