Ditrichum heteromallum

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Ditrichum heteromallum:





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Worley's Map of Collection Records for Ditrichum heteromallum

Ian Worley

Southeastern Alaska Distribution: See Map 198. Widespread, but scattered.[as D. zonatum] See Map 199.
Habitat: Bare soils, roadside banks, disturbed sites, construction areas, sometimes among the roots of overturned trees. Most commonly in exposed situations.

[as D. zonatum] Usually subalpine and alpine, in damp cliff crevices, among rocks and occasionally in tundra vegetation. Also known to descend to near sea level in similar environments.
Comments: This species is known in southeastern Alaska only from areas of human activity, especially on roadcuts.

[as D. zonatum] The Alaskan material is always sterile.

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