Boronia section Corynophyllae Duretto & Heslewood, 2023

Duretto, Marco F., Heslewood, Margaret M. & Bayly, Michael J., 2023, A molecular phylogeny of Boronia (Rutaceae): placement of enigmatic taxa and a revised infrageneric classification, Australian Systematic Botany 36 (2), pp. 81-106 : 104

Boronia section Corynophyllae Duretto & Heslewood , sect. nov.

Type: Boronia corynophylla Paul G.Wilson.

Differs from sections Algidae and Alatae by having simple leaves ( v. imparipinnate or bipinnate) and exfoliating branchlets ( v. smooth ).

Hairs simple. Branches, including cortex, not articulated (continuous) at nodes, smooth and not obviously glandular, scarcely puberulous, with exfoliating cuticle that gives the branches a glaucous appearance. Leaves opposite–decussate, simple. Inflorescence terminal, 1(2 or 3)-flowered; peduncle absent or minute; bracts and bracteoles persistent. Sepals imbricate in bud; persistence unknown. Petals valvate in bud, multiveined from base, without a subterminal apiculum on abaxial surface; persistence unknown. Staminal filaments pilose, swollen and verrucose towards apex, with tip appearing subterminal adaxially. Stigma minute, as wide as or slightly wider than style. Seed not seen.

A monotypic section confined to south-western Australia.