Schistidium confertum (Funck) Bruch & Schimp.

Guerra, Juan, Cano, María J., Martínez, Mónica, Jiménez, Juan A. & Gallego, M. Teresa, 2021, Schistidium apocarpum complex (Grimmiaceae, Bryophyta) in the Baetic Mountain Ranges, southern Iberian Peninsula, Cryptogamie, Bryologie 20 (5), pp. 45-71 : 64

7. Schistidium confertum (Funck) Bruch & Schimp.

( Fig. 15)

Bryologia Europaea 3: 99 (1845). — Grimmia conferta Funck ,

Deutschlands Moose: 18 (1820).

Schistidium apocarpum var. confertum (Funck) H.Möller, Arkiv för Botanik 24 (2): 33 (1931).

HABITAT. — Exposed and dry siliceous rocks (gneiss, schist and mica schists), from 1650 to 3200 m. Distribution: Figure 12. In the Iberian Peninsula it is known from the Pyrenees, Cantabrian Mountains, Central System and Sierra Nevada.

DESCRIPTION

Plants

Very small to small, 0.5-1 cm long, forming dense and pulvinate tufts, dark green to olive.

Leaves

Straight, erect-patent, closely imbricate, ovate-lanceolate, ovate or triangular-ovate, 0.6-1.4 × (0.2)0.3-0.5(0.6) mm.

Hair-point

Flattened, straight, not decurrent, not wide at insertion, usually strongly spinulose-denticulate, to 0.5 mm long.

Lamina smooth

In upper and central part 1-stratose with 2-stratose spots; margins usually recurved on one side of leaf in central and lower part, 2- to 3-stratose in upper and central part.

Laminal cells

In upper and central part isodiametric to oblong or oblate, not or slightly sinuose, (3.5)6.5-10.0 µm long, basal cells esinuose, 7-30 × 5-5(9) µm.

Perichaetial leaves

Elliptical-lanceolate to ovate-lanceolate, (1.8)1.9-2.2 × 0.4- 0.6 mm.

Urn

Obovoid, ovoid or short cylindrical, 0.45-0.70 × 0.35-0.65 mm, usually light yellow.

Exothecial cells

In upper and central part irregular, rectangular or oblong towards the base, stomata small, (3)4-5 per urn.

Peristome teeth

230-250(320) µm long, sometimes short, strongly perforated in central part with slits and small holes, orange-red.