Tropicos | Name - !Bryoerythrophyllum recurvirostrum (Hedw.) P.C. Chen

Cent. Amer. Moss > Pottiaceae > Bryoerythrophyllum > Bryoerythrophyllum recurvirostrum

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!Bryoerythrophyllum recurvirostrum (Hedw.) P.C. Chen

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Project Name Data (Last Modified On 2/15/2011)

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Project data (Last Modified On 2/15/2011)

Discussion:

Bryoerythrophyllum recurvirostrum is widespread northern hemispheric species known in Central America only from Guatemala. The species is marked by its oblong-lanceolate to lanceolate leaves that have strongly recurved leaf margins, rectangular basal cells, and irregularly dentate upper leaf margins. Bryoerythrophyllum aeneum is similar to B. recurvirostrum in most features, but differs in its dioicous sexuality, firm, thick-walled basal leaf cells, and in having rhizoidal gemmae. Bryoerythrophyllum campylocarpum is similar to this species in leaf shape and in having enlarged, thin-walled inner basal leaf cells. It differs from B. recurvirostrum in having plane upper leaf margins and a distinctive basal leaf border of long, narrow, firm-walled cells.

Illustrations: Abramova et al. (1961, Fig. 133); Grout (1904, Pl. 27 as Didymodon rubellus); Gangulee (1972, Fig. 355); Saito (1975, Fig. 39 1–11); Smith (1978, Fig. 125 1–5); Crum and Anderson (1981, Fig. 147); Magill (1981, Fig. 72 11–18); Ireland (1982, Pl. 113); Noguchi (1988, Fig. 122); Norris and Koponen (1989, Fig. 13 a–q) Sharp et al. (1994, Fig. 203 a–e). Figure 18.

Habitat: In forest on Juniperus; 3300–3500 m.

Distribution in Central America: GUATEMALA. Huehuetenango: Williams et al. 41071B (MO); Quezaltenango: Standley 67665 (F); Sacatepéquez: Godman & Salvin (NY).

World Range: Subarctic America, Western and Eastern Canada, Northwestern, North-Central, Northeastern, Southwestern, South-Central, and Southeastern U.S.A.; Mexico; Central America; Caribbean, Northern South America; Subantarctic Islands; Northern, Middle, East, Southwestern, and Southeastern Europe; Siberia, Russian Far East, Caucasus, Middle Asia, Mongolia, China, Eastern Asia, Western Asia; Northern and Southern Africa, Northeast, West-Central, East, and South Tropical Africa; Indian Subcontinent, Malesia; Australia, New Zealand; North-Central Pacific.

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Bryoerythrophyllum recurvirostrum (Hedw.) Chen, Hedwigia 80: 5. 1941.

Weissia recurvirostra Hedw., Sp. Musc. Frond. 71. 1801. Didymodon recurvirostrus (Hedw.) Jenn., Man. Mosses W. Pennsylvania 96. 1913. Barbula recurvirostra (Hedw.) Dix., Rev. Bryol. Lichénol. 6: 991. 1934. Protologue: England and Norway. In montosis Angliae et Norwegiae.

Plants medium-sized, reddish green to reddish yellow, 5–25 mm high. Stems red, erect, irregularly branched, sclerodermis and central strand present; rhizoids red, smooth. Leaves 2–3 mm long, erect-sheathing at base, erect-twisted and incurved when dry, erect-spreading to spreading when wet, oblong-lanceolate to lanceolate; apices bluntly acute, apiculate; margins unistratose, recurved to near the apex, irregularly dentate above, not bordered, decurrent at base; costa subpercurrent to percurrent, papillose at back, ventral superficial cells short-rectangular to quadrate, pluripapillose, guide cells and two stereid bands present, ventral and dorsal epidermal layers enlarged, papillose; upper cells 8–12 x 8–12 μm, firm-walled, oblate to irregularly quadrate, densely pluripapillose by thick, c-shaped papillae, basal cells smooth, hyaline, enlarged, thin-walled and bulging, long-rectangular 30–90 x 8–18 μm, alar cells not differentiated. Synoicous or paroicous. Perichaetia terminal; perichaetial leaves elongate, sheathing. Setae smooth, 10–15 mm long, red. Capsules cylindric, erect and symmetric, 2–3 mm long, smooth, suboral ring differentiated in 1–2 rows; stomata in neck; exothecial cells rectangular; opercula obliquely short-rostrate, 0.5–0.8 mm long; annuli revoluble to deciduous, 1–3 rows of vesiculose cells; peristome of 16 erect, light-yellow to hyaline, filamentous, irregularly cleft, lightly papillose teeth, to 240 μm long, basal membrane absent. Spores 14–16 μm, smooth to slightly papillose. Calyptrae cucullate, smooth,1.5–2.0 mm long.