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Published In: Microgr. Dict. 235. 1855. (1 Apr 1855) (Microgr. Dict.) Name publication detail

Project Name Data (Last Modified On 2/20/2009)
Acceptance : Accepted
Project Data     (Last Modified On 3/16/2009)
General Reference:

Notes     (Last Modified On 3/16/2009)
general taxon notes:


The Ephemeraceae consist of three genera in the world. Nanomitriopsis Card. ex Broth. is a monotypic genus occurring in Africa. Micromitrium Aust. has a distribution range in Africa, North, Central and South America, and it was reported from Japan. Ephemerum Hampe has a more widely distributed range than Micromitrium (Stone 1996) and is found in China.


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夭命藓科   yao-ming xian ke
by Li Xing-jiang, Si He, and Zhang Da-cheng
Plants very tiny, delicate, ephemeral, growing on soil, usually with persistent, green, shiny protonemata spreading around soil surfaces. Stems very short; central strand often absent. Leaves few, the lower leaves short and small, the upper leaves larger and more crowded, ovate-lanceolate to linear-lanceolate, gradually acuminate; margins entire below, serrate above; costa slender, usually weak, obsolete or absent; upper leaf cells narrowly rectangular or irregularly oblong-rhomboidal; basal cells larger, lax, rectangular. Mostly dioicous. Male plants minute, budlike; female plants also very tiny. Setae very short or lacking; capsules immersed in perichaetial leaves, globose to ovoid, without neck or neck poorly developed; stomata superficial or not developed; opercula, annuli, and peristome none; columella usually resorbed at maturity. Calyptrae small, often mitrate, rarely cucullate. Spores large, spherical, yellowish or yellowish brown, often papillose, rarely smooth.

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Only one genus is found in China.

1. Ephemerum Hampe


Lower Taxa
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