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Sticta weigelii

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description Sticta weigelii Overview

Sticta weigelii is a foliose cyanolichen in the genus Sticta, a group recognized for leafy thalli and small pores or cyphellae on the lower surface. It is associated with humid tropical or subtropical forests and commonly grows on mossy bark, tree trunks, or other shaded substrates. Its broad, deeply divided lobes and blue-gray to green-gray appearance can help separate it from smoother foliose lichens, although reliable identification may require microscopy or chemical tests.

help Sticta weigelii FAQ

What are cyphellae in Sticta weigelii?

Cyphellae are small pore-like structures found on the lower surface of many Sticta lichens. In Sticta weigelii, they are an important identification feature beneath the leafy thallus.

Where does Sticta weigelii grow?

It is associated with humid tropical or subtropical forests. It commonly grows on mossy bark, tree trunks, and other shaded substrates where moisture remains high.

Is Sticta weigelii a cyanolichen?

Yes, it is a foliose cyanolichen in the genus Sticta. Its cyanobacterial partnership can contribute nitrogen fixation, while the leafy thallus provides the visible body of the lichen.

How does Sticta weigelii differ from a crustose lichen?

Sticta weigelii has a leafy, lobed thallus that spreads across the substrate and can be examined from both sides. A crustose lichen such as Placopsis gelida is tightly attached as a thin crust, especially on rock.

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