|Syrrhopodon incompletus growing on the spongy trunk
of a date palm (Phoenix dactylifera) on the University
of South Florida campus
Syrrhopodon incompletus Schwaegr. (Calymperaceae) is a relatively common moss found throughout the coastal plain of the southeastern U.S., occurring mostly on tree trunks, including palms, and exposed roots. It has a short upright stem with relatively large leaves, typically 3-5 mm in length, crowded into a circular pattern called a rosette ("rose-like"), and thus superficially resembles Octoblepharum. The leaves are thinner, however, just one cell thick except for the prominent midrib, with small teeth along the margins, and are translucent green.
|The leaf cells of this species are small, roundish and thin-
walled, and each has a small, hard, pimple-like outgrowth
called a papilla. The marginal cells are similar in size, shape,
and coloration, but with an occasional short tooth.
|The large leaves have a strong midrib (or costa) and the basal region is composed of large, empty, rectangular cells.
|When dry, the leave roll into a tube and then twist and curl.
|The sporophytes arise from the tips of the stems, and the sporangia are upright and symmetrical.