Schistidium atrofuscum (Schimp.) Limpr.
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publication ID |
https://doi.org/ 10.5252/cryptogamie-bryologie2021v42a5 |
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persistent identifier |
https://treatment.plazi.org/id/A50C87EA-FFB0-FFF8-FC83-FA30FEACFDBB |
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treatment provided by |
Felipe |
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scientific name |
Schistidium atrofuscum (Schimp.) Limpr. |
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1. Schistidium atrofuscum (Schimp.) Limpr. View in CoL
( Fig. 3)
Die Laubmoose Deutschlands, Oesterreichs und der Schweiz 1: 713
(1889). — Grimmia atrofusca Schimp., Syn. musc.eur., ed.2: 240 (1876).
Schistidium apocarpum var. atrofuscum (Schimp.) C.E.O. Jens. ex Weim., Förteckning öfer Skandinaviens Växter, Mossor ed. 2, 2: M28 (1937).
HABITAT. — Exposed calcareous rocks, from 1100 to 2000 m. Distribution: Figure 4. This species was known from very few provinces of Spain, and in the south it had only been cited from Jaén.
DESCRIPTION
Plants
Small, 0.7-1(1.5) cm long, forming dense and pulvinate tufts, jet-black. Leaves straight, erect, imbricate, triangular-ovate to ovate-lanceolate, obtuse to subacute, 0.9-1.6 × 0.3-0.5 mm.
Hair-point
Absent or rarely present as a very short and finely denticulate tip, to 0.15 mm long, not very wide at insertion.
Lamina smooth, in upper and central part mostly 2-stratose to 1-stratose; margins plane in upper part, recurved in lower ½-⅔, 2-stratose in upper and central part.
Laminal cells
In upper and central part isodiametric to short oblong, not or slightly sinuose, mixed with oblate cells, 6-12 µm long, basal cells esinuose, 15-40 × 8-10 µm.
Perichaetial leaves
Elliptical to lingulate, 2-3.5 × 0.4-0.6 mm.
Urn shortly oblong, sometimes cyathiform, 0.7-0.9(1) × 0.5-0.7 mm, orange to yellowish.
Exothecial cells
Predominantly rectangular, mixed with groups of short rectangular or isodiametric cells, stomata absent.
Peristome teeth
60-250(300) µm long, sometimes very short to rudimentary, entire to semi-perforated in upper and central part, orange-red to yellowish.
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