Difference between revisions of "Acroporium smallii"
Bryologist 63: 43. 1960.
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|special status=Endemic;Illustrated | |special status=Endemic;Illustrated | ||
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|genus=Acroporium | |genus=Acroporium | ||
|species=Acroporium smallii | |species=Acroporium smallii | ||
Latest revision as of 21:38, 5 November 2020
Plants delicate, in creeping mats. Stems with branches 0.4–0.6 mm, 0.7–1 mm across leafy branch, main stem and branches arching upward, stem and branch apices with penicillate group of abruptly imbricate leaves. Leaves 0.5–0.7 mm; margins incurved distally to form tubulose apex; supra-alar cells short. Specialized asexual reproduction rare, by filamentous gemmae. Perigonia on branches. Perichaetia on stems or branches. Seta red. Capsule 0.4–0.6 mm; annulus absent; exostome teeth 16, lanceolate, finely striate, longitudinally furrowed; endostome basal membrane wide, segments equal to exostome teeth length, cilia 1, short, occasionally rudimentary. Calyptra smooth. Spores spheric, 13–14 µm, slightly roughened.
Phenology: Capsules mature summer.
Habitat: Rotten logs, tree bark, charred wood, moist live-oak hammocks
Elevation: low elevations (0 m)
Discussion
Distinctive gametophytic traits of Acroporium smallii include long-ovate leaves with erect margins, linear medial laminal cells, and alar cells much inflated and sharply differentiated from more distal cells. The species is confined to Miami-Dade County.
Selected References
None.