Grimmiaceae
plural noun
Grim·mi·a·ce·ae
ˌgrimēˈāsēˌē
: a family of acrocarpous mosses that have the capsule on a short stalk and with a single peristome the teeth of which are often split or perforated and that form dark mats or cushions lacking chlorophyll except at the tips of stems and branches
grimmiaceous
adjective
¦grimē¦āshəs
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Merriam-Webster unabridged
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