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Botanical Broadcasters (BX-Codes)

ATH

Pollen, tree sap, seeds and wind-blown plant debris all land on a building and feed what grows there — and given a foothold in a gutter or mortar joint, a stray seedling becomes a self-rooting plant that splits the fabric. The 'BX-Codes' track these botanical inputs, because controlling what settles on a surface is as much about the source as the stain.

The BX-Codes are the ATH Codex family for 'botanical broadcasters' — the pollen, sap, seed and higher-plant inputs that are transported onto and colonise the built environment. They cover wind- and wildlife-borne pollen and sap deposits that nutrient-load surfaces and feed downstream microbial succession, through to opportunistic higher plants (e.g. buddleia, self-seeded saplings) rooting in gutters, parapets and mortar joints where they fracture the fabric. The BX family sits in COSMOS Domain II alongside the algal, bacterial, fungal and lichen registries, bridging the atmospheric vector field (AEBEM) and the organism-substrate axis: a botanical broadcaster is both a contaminant in its own right (sap filming, pollen staining) and a nutrient subsidy that accelerates biofilm establishment.

The BX-Codes are the ATH Codex family for 'botanical broadcasters' — the pollen, sap, seed and higher-plant inputs that are transported onto and colonise the built environment. They cover wind- and wildlife-borne pollen and sap deposits that nutrient-load surfaces and feed downstream microbial succession, through to opportunistic higher plants (e.g. buddleia, self-seeded saplings) rooting in gutters, parapets and mortar joints where they fracture the fabric. The BX family sits in COSMOS Domain II alongside the algal, bacterial, fungal and lichen registries, bridging the atmospheric vector field (AEBEM) and the organism-substrate axis: a botanical broadcaster is both a contaminant in its own right (sap filming, pollen staining) and a nutrient subsidy that accelerates biofilm establishment.

Collingtree

Houghton Conquest

Middle Claydon

Steeple Claydon

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