Section 05
Pavement
The city as habitat. Each entry names the species or the process and says what is actually observed, separating what is measured from what is inferred.
The city is a habitat
Walls, verges, ballast and roofs are not degraded countryside; they are dry, alkaline, disturbed environments with their own specialists.
Medium entry
Wall flora
Ferns and mosses in lime mortar, and why repointing removes them.
Short entry
Railway ballast
Hot, sharp-draining and regularly disturbed — and full of colonisers.
Short entry
The road verge
Linear grassland managed by a mower rather than a grazier.
Short entry
Green roofs
Thin substrate, full exposure, and what actually persists up there.
Short entry
5 entries in Pavement. Every entry in the publication is listed on the register.