Boronia section Algidae Duretto

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 : 102

Boronia section Algidae Duretto , Muelleria

12: 16 (1999)

Type: Boronia algida F.Muell.

Hairs simple. Branches, including cortex, not articulated (continuous) at nodes, puberulous, smooth or glandular verrucose. Leaves opposite–decussate, imparipinnate. Inflorescence terminal, cymose, 1–3-flowered; peduncle absent; bracts and bracteoles persistent. Sepals imbricate in bud, persistent. Petals valvate in bud, without a subterminal apiculum on abaxial surface, multiveined from base, persistent or caducous. Staminal filaments glabrous, swollen and verrucose towards apex, with tip appearing subterminal adaxially. Stigma globular, much wider than style. Seed dull, grey to black; adaxial surface with a linear hilum; raphe basal; sclerotesta sometimes minutely verrucose; cotyledons linear, as wide as hypocotyl.

A section of two species confined to south-eastern Australia: Boronia algida (NSW, ACT, Vic.) , B. edwardsii (SA) .