Two other members of the Dicranum family could easily be confused for one of our common dicranums. The first is
Paraleucobryum longifolium, a silvery-grey moss that also likes acid rocks...in fact it and
Dicranum fulvum will grow together. When dry, they are easier to tell apart because
Paraleucobryum is more of a grey-green and
D. fulvum tends toward a black-green. Also when dry, if you use a higher power lens (20x) you can see a definite striping pattern on the back of
Paraleucobryum's leaf. This is due to alternating bands of empty cells and cells with chlorophyll. When
Paraleucobryum grows on tree bases, it can sometimes be confused with
Dicranum viride because sometimes it has a few broken leaf tips. However,
D. viride is never wispy and contorted when dry and is a bright green.
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Paraleucobryum longifolium |
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Dicranum fulvum
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Dicranum viride (photo by M. Luth) |
The second moss is
Oncophorus wahlenbergii...it loves rotten logs, especially in wet areas such as wooded swamps....the same place you'd also find
Dicranum flagellare. Oncophorus, much less common,
is much wispier and never has stiff little brood branches at the tips of it's branches like D. flagellare. Also it often has capsules which are curved and have a definite 'adam's apple'.
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Oncophorus wahlenbergii (photo by M. Luth)
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Oncophorus capsule - note the 'adam's apple' at the base of the capsule. |
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Dicranum flagellare Note the stiff, upright brood branches which break off very easily and can grow into new plants. These are best developed in the late summer or early fall. My daughter used to call this the 'haircut' moss because she would rub her hand over the top making the brood branches fly off in all directions, thus giving it a 'haircut'. |
It'll always be Haircut Moss to me! Thanks for this post; I hadn't connected Leucobryum and Oncophorus with the Dicranums (Dicrana).
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