Small'S Acroporium Moss (Acroporium smallii)
Description
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 -m, slightly roughened.Capsules mature summer. Rotten logs, tree bark, charred wood, moist live-oak hammocks; low elevations (0 m); Fla. 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.
Taxonomic tree
-
Domain: Eukarya
-
-
Kingdom: Plantae
-
-
Phylum: Bryophyta
-
-
Class: Bryopsida
-
-
Order: Hypnales
-
-
Family: Sematophyllaceae
-
-
Genus: Acroporium
-
-
-
-
-
-
