Sample #11: : Rhytidiadelphus triquetrus “Pleated Shaggy Moss”
Figure 1: detail of Rhytidiadelphus triquetrus stem and leaf branches; once pinnate branching evident
Figure 2: detail of leaves; midrib too faint for identification; note microscopic "teeth" on leaf edges in middle right
Phylum: Bryophyta
Family: Hylocomiaceae
Collection Date: 16 October, 2016
Collector: Kristen Maslach
Habitat: Forest soil in conifer forests, openings in
hardwood forests, woods enriched with calcium, along streams
Location: Soil, close to a seasonal stream, Mantua, Ohio
Description: creeping to upright; foum bushy mats; leaves
green and close together with red stems; leaves triangular egg-shaped tapering
to a pointed tip; weak midrib; leaf edges have microscopic teeth
Key Used: McKnight, Karl, Joseph Rohrer, Kirsten McKnight
Ward and Warren Perdrizet (2013). Common
Mosses of the Northeast and Appalachians.
Princeton, New Jersey: Princeton University Press.
Steps to Key:
Plerocarp,
faint midrib
“Pinnately
branched (like a feather or fern frond) (pg365)”
“Stems
once pinnate (pg365)”
Found on
soil
“Large
and shaggy (pg365)”
Resources:
A single leaf is really needed to confirm shape and mid-rib which is key to proper genus.
ReplyDelete