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59.
Pseudevernia intensa [intense]. |
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A large,
much-branched, tough, lichen with long lobes with convex, inrolled
branches. The underside is black, and the upper surface usually has
many small black dots (the pycnidia). Apothecia are very large with
dark brown disks and gray thalline margins; they are elevated on
short branches. The lichen is common on dead branches of
conifers. |
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60.
Punctelia (Parmelia) hypoleucites [pale underneath]. |
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This large
gray foliose lichen is almost identical to Flavopunctelia
except that its thallus lacks usnic acid, which would color the
cortex green. The pseudocyphellae are usually conspicuous, and the
underside is pale tan. Several species of Punctelia occur,
some with soredia, some with isidia, some with black
undersides. |
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