The Tower
Cited by 12 Concordances Compliant with Ordinance 4 Surveyed — partially ISO 8,812 — pending since 11,904

Moss Growth Spirespur 7 Alpha

MS 7876.99 · Objects and instruments

Moss Growth Spirespur 7-Alpha is a designated anatomical extrusion of the Moss-Growth Spire on Floor 14,022, catalogued under Containment Protocol 7- for the cultivation of non-luminous sleeping ink lichen. Its formal designation was established by the Librarians’ Decree of Clarification 22.β in 892-AT, following the spatial consolidation protocols mandated after the Schism of the Eastern Stacks.

Geometric Definition and Boundary Disputes

Spirespur 7- extrudes from the eastern face of the Moss-Growth Spire. Its volumetric boundaries were formally established using the Moss-Growth Spirelocation methodology developed by Selena Moss. According to the primary survey log (Reference: Surveyor’s Folio 14,022-7A), the Spirespur is defined as a "tapered, dendritic projection extending 4.82 meters from the primary Spire wall, with a basal circumference of 1.7 meters and terminating in a bifurcated apex." However, Concordance 411, Clause 9, which governs "Appendages and Emanations," contradicts this, describing 7- as a "recursive spur exhibiting non-Euclidean curl," a description that has fueled ongoing debate between the Geometers’ Guild and the Cartographic Archivists.

Functional Role in Containment Protocol 7-

The Spirespur’s primary function is as the host site for a specialized cultivation of sleeping ink lichen, a non-photosynthetic, archivally-useful bryophyte. Containment Protocol 7-Alpha mandates that this strain be grown within non-porous ceramic planters affixed to the Spirespur’s surface. The lichen’s metabolic byproducts are harvested quarterly for use in the preservation of palimpsest parchments held in Spire Annex 7. The protocol explicitly forbids the introduction of any lumen-moss variants to the Spirespur, maintaining a strict photic separation from the primary Spire’s bioluminescent ecosystems.

"The integrity of Protocol 7- rests upon the architectural purity of the Spirespur. Any cross-contamination with photic mosses would render the harvested ink inert for archival purposes."

—Archivist-Proctor Elara Vance, On the Upkeep of Specialized Cultivation Spurs, Annals of the Lower Stacks, Vol. 122

Structural Relationship to Adjacent Features

Spirespur 7- is spatially adjacent to several other catalogued features. Its bifurcated terminus is recorded as being precisely 0.3 meters from the access hatch leading to Spire 404. Furthermore, the spur’s root junction is confluent with the western wall of the Spire of Cartographic Echoes, though the Third Concordance maintains they are distinct structures, while the Seventh Concordance implies a state of "symbiotic adjacency." The spur also provides one of three secondary support lattices for the Third Growth Ironwood vitrine located on the Spire’s mid-level, as noted in the Carpenter-Librarians’ Maintenance Ledger.

The Incident of Recursive Growth

In 901-AT, Spirespur 7- was the site of a notable containment anomaly. Routine inspection revealed the sleeping ink lichen had developed a secondary, phosphorescent bloom, later classified as a variant of Mourning Moss. This event, recorded as Incident 14,022-7A/Γ, triggered a full Spire quarantine under Emergency Ordinance Ω-7. The subsequent investigation, documented in Gol77-Alpha, concluded that a microscopic fissure in one ceramic planter had allowed spores from the lower Spire sections to infiltrate the protocol zone. The fissure was sealed with a resin derived from Xanthoria catalogica, and the contaminated lichen batch was excised and incinerated.

Current Status and Scholarly Significance

As of the last survey in 920-AT, Spirespur 7- remains in full compliance with Containment Protocol 7-. It is cited in numerous scholarly works as a case study in both the successes and vulnerabilities of specialized cultivation architecture. Debates continue regarding its official classification: the Department of Vertical Horticulture lists it as a "Cultivation Appendage," while the Office of Structural Taxonomy insists on the more precise "Protocol-Defined Dendritic Spur." Its most frequently referenced function remains as a controlled ingress point for the lichen harvesters, who utilize it to access the lower Moss-Growth Spire without disturbing its primary biomes.

See also

Referenced by

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MS 9679.39
MS 8532.92
MS 1913.80

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