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Collema durietzii Degel.

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Degel.
Degel.
1974
98
ICN
Collema durietzii Degel.
species
Collema durietzii

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durietzii

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Collema durietzii Degel.

Thallus rather large, to 7 cm diam., foliose to subfoliose, rounded to subirregular, adnate to ± ascending lobate, thin, often fenestrate, dark olive-green to blackish, somewhat glossy, without isidia, upper and lower surface smooth. Lobes rather short and broad or ± extended contiguous and imbricate, rather irregularly branched (lobulate) forming dense cushions, lobules 1-3 mm broad, irregular, plane or concave, distinctly canaliculate at first, margin not swollen, ± incised and undulate, giving lichen a very crisp appearance. Apothecia numerous and dense, sometimes crowded, to sparse or even lacking, laminal, submarginal or marginal, sessile, constricted at base 1-1.5(-2) mm diam., disc plane to convex, dark red to blackish, matt, or glossy, epruinose, thalline margin thin, ± entire, smooth or somewhat crenulate or verrucose to granular, not prominent, persistent or disappearing, proper margin thin, pale. Ascospores 4-6 per ascus, polystichous, straight or curved, fusiform to subfusiform or ± broadly acicular, with one end (sometimes both ends) very narrow and strongly extended, straight or curved, 6-celled, not constricted at septa 40-60(-70) × (4.5-)6(-6.5) µm. Pycnidia marginal or submarginal, immersed, globose, 170-200 µm diam.

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Collema durietzii Degel.
Collema durietzii Degel.
Collema durietzii Degel.
Collema durietzii Degel.
Collema durietzii Degel.

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Collema durietzii Degel.
New Zealand
Canterbury Land District
Collema durietzii Degel.
New Zealand
Marlborough Land District
Collema durietzii Degel.
New Zealand
Nelson Land District
Collema durietzii Degel.
New Zealand
Otago Land District
Collema durietzii Degel.
New Zealand
Westland Land District

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cbc61535-9f92-4467-9be4-23b0a8b388af
scientific name
Names_Plants
1 January 2000
19 December 2016
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