Bratus (tree)

The Bratus tree is known to us solely through the detailed accounts of ancient Roman writers, most notably Pliny the Elder in his monumental work, Naturalis Historia (Book 12, chapter 39). Pliny describes the Bratus as a tree imported from the region of the Elymæi, visually similar to a spreading cypress, characterized by its whitish branches. Its primary distinction, however, was the 'pleasant odour' emitted by its burning wood, a quality so esteemed that it was a traded commodity.

The tree's significance was further underscored by Claudius Caesar, who, in his own historical writings, lauded its 'marvellous properties.' This historical record positions the Bratus not merely as a botanical specimen but as an object of cultural and perhaps even practical importance in the ancient world, valued for its sensory and potentially functional attributes. The scarcity of direct evidence beyond these classical texts makes definitive identification a persistent scholarly challenge.

Pliny's geographical attribution places the Bratus tree in a specific, albeit ancient, context: 'beyond the Pasitigris, in the territory of the city of Sittaca, upon Mount Zagrus.' This places the tree in the Zagros Mountains region, historically part of Mesopotamia and bordering ancient Persia. This mountainous terrain suggests an environment suitable for coniferous or hardy evergreen species. The mention of its importation implies that the Bratus was not ubiquitously found within the Roman sphere of influence, necessitating trade routes to acquire its valuable wood.

The comparison to cypress and its resinous, aromatic wood strongly suggests it belonged to the conifer family (Pinophyta), a group known for producing fragrant resins and oils, often utilized in perfumery, incense, and medicinal preparations throughout antiquity.

The 'marvellous properties' attributed to the Bratus tree by Claudius Caesar and Pliny hint at uses extending beyond mere aromatic incense. Pliny notes that the Parthians incorporated its leaves into their beverages, a practice that could signify medicinal, ritualistic, or even psychoactive applications, common in ancient pharmacopoeia. More remarkably, Pliny states that the smoke of the Bratus was 'efficacious in counteracting the effects of smoke emitted by other wood.' This suggests an ancient, perhaps empirical, understanding of its chemical composition, possibly involving compounds that could neutralize airborne irritants or mask unpleasant odors.

This property aligns with the known characteristics of certain resins and volatile oils found in conifers, which can possess antimicrobial or deodorizing qualities, though Pliny's claim is presented in a rather extraordinary manner.

The precise botanical identity of the Bratus tree has been a subject of considerable scholarly debate. Editors John Bostock and Henry Thomas Riley noted that while the Greek name 'savin' (κέδρος) was associated with Juniperus sabina, Pliny's description of a resinous wood with a balsamic odor upon ignition points away from this specific species and towards coniferous trees in general. Some scholars have proposed Thuja species (like Thuja occidentalis or Thuja orientalis), but their native geographical origins do not align with Pliny's description.

A more plausible candidate, suggested by Fée, is Tetraclinis articulata, commonly known as the Barbary Thuja or Sandarac Gum Tree, native to the Atlas Mountains. This tree produces aromatic resin (sandarac) and fits the description of a coniferous tree with fragrant wood. The confusion is compounded by ancient nomenclature, where terms like 'citrus' could ambiguously refer to cedar, citron, or even the Bratus itself, reflecting the fluid nature of botanical classification in antiquity.