Difference between revisions of "Plagiobryoides renauldii"

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Copyright: Flora of North America Association

Plants dark green to olive green. Stems 1–3(–4) cm, not or weakly julaceous, innovations few; rhizoids few on proximal stem. Leaves distant, somewhat contorted when dry, erect when moist, broadly ovate to suborbicular, concave, 0.5–2(–3.5) mm; base somewhat decurrent, red-green; margins plane or recurved proximally, 1-stratose, limbidium absent; apex broadly acute to obtuse; costa not reaching apex to rarely percurrent; proximal laminal cells rectangular, (60–)80–100 × 16–24 µm, 3–5:1, bulging, walls thin; distal cells irregular, 25–50 × 16–25 µm, 1–2(–3):1, walls thin. Specialized asexual reproduction by rhizoidal tubers, on rhizoids at base of stem and in most proximal leaves, (200–)300–500 µm. Sexual condition apparently dioicous. Sporophytes unknown.

Habitat: Wet soil, soil over rock, in streams
Elevation: high elevations (2200 m)

Ariz., Mexico, West Indies, Central America, South America.

Discussion

Collections of Plagiobryoides renauldii were made in 2007 on the east side of the Chiricahua Mountains along a stream, occurring with P. incrassatolimbata. This is a robust aquatic species of Plagiobryoides similar overall to P. incrassatolimbata, but differing in the lack of a limbidium, the rounded apex, distant leaves, and rhizoidal tubers.

Selected References

None.

Lower Taxa