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Taxonomy and Systematics
Species: A. altercristatum
(Some sources list this species as a subspecies of A. undulatum.
Unbranched acrocarp standing 1-3 cm tall, growing in patches on ground. Long lance-like leaves with small teeth beginning about halfway up. Thin, striped midrib covered by lamellae runs to tip. Leaf margins curve upward like a canoe. Upright cylindrical capsuls, 2-7 mm long, sitting atop 1-3 cm red stalk. Found on forest floor and in clearings.
Found growing in a small mat on damp soil at the base of a maple tree near the pond. Stalks, but not fully developed capsules, appeared present on only a few individuals.
McKnight, Karl B., Joseph R. Rohrer, Kirsten M. Ward, and Warren J. Perdrizet: Common Mosses of the Northeast and Appalachians. Princeton, NJ: Princeton UP, 2013. Crum & Ireland: Keys to the Mosses of White Creek. 1989.
Jkendrick 20:37, 16 April 2013 (UTC)