Polytrichastrum alpinum males, showing perigonia and characteristic annual stacking pattern. These plants are about five years old and are 15 cm tall. On soil bank. Indian River Trail, Sitka. May 23, 2004.
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Polytrichastrum alpinum (formerly Polytrichum alpinum) females producing mature sporangia. The capsule is 8mm long. The are a few males in this group as well as P. contortum in the lower foreground. On soil bank. Indian River Trail, Sitka. May 23, 2004.
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