description Lempholemma polyanthes Overview
Lempholemma polyanthes is a small gelatinous cyanolichen whose dark green to black thallus becomes more conspicuous and flexible when wet. It is a calciphile, commonly growing among bryophytes over limestone or calcareous soil, and may also occur on calcareous rock, plant debris, and other basic surfaces. The species is distributed in cool-temperate to arctic-alpine regions and can resemble free-living Nostoc colonies or small Collema lichens. Immersed apothecia and the thallus structure help confirm its identity.
help Lempholemma polyanthes FAQ
What does Lempholemma polyanthes look like when wet?
It has a dark green to black gelatinous thallus. Moisture makes the thallus more conspicuous and flexible than it is when dry.
Where does Lempholemma polyanthes usually grow?
It is a calciphile, so it is associated with limestone or other calcareous habitats. It can grow among bryophytes over calcareous soil or on calcareous rock and plant debris.
Is Lempholemma polyanthes a cyanobacteria-containing lichen?
Yes. It is described as a cyanolichen, meaning its lichen partnership includes cyanobacteria rather than relying only on green algae.
Why is Lempholemma polyanthes easy to miss in the field?
Its small thallus can blend into moss, soil, rock, or plant debris when dry. Wet conditions make its dark gelatinous form easier to see.
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