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!Dicranum scoparium Hedw. Search in The Plant ListSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical GardenSearch in Flora do Brasil 2020Search in Reflora - Virtual HerbariumSearch in Living Collections Decrease font Increase font Restore font

Published In: Species Muscorum Frondosorum 126. 1801. (Sp. Musc. Frond.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 10/18/2013)
Acceptance : Accepted
Project data     (Last Modified On 10/18/2013)
Nomenclature: D. scoparium Hedw., Sp. Musc. 126. 1801.
D. mexicanum Schimp. ex Besch., Mem. Soc. Sci. Nat. Cherbourg 16:     164. 1872.
Distribution: On soil, humus, or rotten logs and stumps; Oaxaca and Veracruz. - Mexico; United States and Canada; Central and South America; Europe, Asia, Africa, Australia, and New Zealand.
Discussion: This species, common in most of North America, is apparently rare in Mexico, where it is replaced by D. sumichrastii.
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Plants up to 7 cm high, green to yellowish-green, radiculose nearly to the apex. Leaves 4-10 x 0.8-1.5 mm, falcate-secund, sometimes nearly straight, little changed or somewhat flexuose when dry, concave below, keeled above, lanceolate to ovate-lanceolate, gradually acuminate, unistratose except for the bistratose alar region; margins strongly serrate above; costa subpercurrent to short-excurrent, with (2-)4 serrated dorsal ridges above, in section showing 1 row of guide cells and 2 stereid bands, the dorsal and ventral epidermal cells not differentiated; cells elongate and pitted throughout. Pseudautoicous. Seta 1 or rarely 2 per perichaetium, 2-3.5 cm long, yellowish- or reddish-brown; capsules 3-4 mm long, curved, inclined to horizontal, smooth, striate or wrinkled when dry; annulus none; operculum 3-3.5 mm long. Spores 16-24 µm.


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