这是本词条的历史版本,由Mawenzhang于2015-11-01 12:54:14贡献
齿叶短颈藓Diphyscium longifolium

Diphyscium longifolium Griff. in Calcutta Journal of Natural History and Miscellany of the Arts and Sciences in India 2: 477. 1842.

种间区别

Leaf margin serrate or dentate near the apex region, and entire below.
叶尖部细胞具齿突,下部平滑。

形态描述

Plant small to rather large, 5-30 mm long. Stems simple or branched; in cross section central strand present. Leaves curled when dry, erect-spreading when moist, 3-12 mm ×0.3-1.0 mm, linear-lanceolate, oblong-spathulate to oblong-ovate; acute to obtuse, mucronate to apiculate at apex; leaf margins entire below, serrate above, marginal teeth unicellular or multicellular; costa percurrent or shortly excurrent, with two stereid bands in cross section; leaf cells unistratose at base, bistratose above; median cells rounded to quadrate, 4-12 µm in diameter, smooth.


Setae vey short, up to 0.3 mm long; capsules oblong-ovoid, obliquely asymmetric, 3-5 mm×1-2 mm, abruptly narrowed at base and mouth; exothecial cells collenchymatous; stoma occasionally present at the mouth of capsule; annuli well differentiated. Calyptrae cucullate, smooth. Spores spherical, 8-14 µm in diameter, papillose.

主要用途

模式信息

分布地区

Widespread throughout tropical Asia, Oceania, Central and South America.
广泛分布于热带亚洲,大洋洲,中美及南美洲。