Lesson plan

Hyperphyscia

Hyperphyscia is a genus of lichen-forming fungi in the family Physciaceae. These lichens form tightly attached, leaf-like crusts that spread outward in rosettes, with individual radiating in shallow, overlapping tiers that are seldom more than a millimetre or two wide and range in colour from pale brownish-grey to dark brown. They reproduce through brown, disc-shaped fruiting bodies that sit directly on the upper surface and contain thick-walled brown ascospores divided by a single cross-wall, typical of many members of their family.

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Article summary

Hyperphyscia is a genus of lichen-forming fungi in the family Physciaceae. These lichens form tightly attached, leaf-like crusts that spread outward in rosettes, with individual radiating in shallow, overlapping tiers that are seldom more than a millimetre or two wide and range in colour from pale brownish-grey to dark brown. They reproduce through brown, disc-shaped fruiting bodies that sit directly on the upper surface and contain thick-walled brown ascospores divided by a single cross-wall, typical of many members of their family.

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Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  3. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

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