Bernardia
Creators: name: Carrión, Juan F.
name: Amorim, André M.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Euphorbiaceae
Bernardia

description: Key to Bernardia species with stellate trichomes in the southern half of South America (modified from Carrión et al. 2019)
1. Leaves coriaceous; staminate inflorescences subglobose, sessile, cymules congested along the axis; staminate flowers shortly pedicellate (pedicels not exserted over the bract at anthesis).............................................................................................................2
- Leaves membranaceous to chartaceous; staminate inflorescences spiciform, pedunculate, cymules scattered along the axis; staminate flowers conspicuously pedicellate (pedicel exserted over the bract at anthesis) ...............................................................3
2. Multi-stemmed subshrub, usually with leaves near the base of the stem; blades 2.2–4.5 cm wide, circular glands 2–14, on the abaxial surface, usually aggregated close to the blade base, sometimes near to the apex; stamens 7–11; pistillate bracts 2.5–4.5 × 2.2–3.8; pistillate sepals 2.6–3.5 × 1.6–2.8 ......................................................................................... B. allemii Carrión (2019: 828)
- Single-stemmed shrub, without leaves near the base of the stem; blades 0.5–2 cm wide, circular glands sometimes absent or with 1–2(–3) glands close to the blade base on the abaxial surface; stamens 5–8; pistillate bracts 1–2 × 1–2.5 mm; pistillate sepals 0.8–1.7 × 0.8–1.5............................................................................................................ B. gardneri Müller Argoviensis (1874: 394)
3. Plants usually dioecious; young branches densely tomentose; blades chartaceous, with conspicuously prominent tertiary veins; staminate inflorescences 4–10(–16) cm long .......................................................................................................... B. paraguariensis
- Plants usually monoecious; young branches sericeous; blades membranous, with imprinted to slightly prominent tertiary veins; staminate inflorescences 0.6–3 cm long.............................................................................................................................................4
4. Subshrub to shrub, 0.15–0.80 m tall; young branches densely sericeous, with simple or simple and stellate trichomes; staminate peduncle 5–25 mm long, densely sericeous, pubescent to tomentose; staminate cymules congested to slightly sparse along the axis; staminate pedicels with simple and/or stellate trichomes. Argentina and Paraguay .................................................. B. argentinensis
- Shrub, 0.4–2 m tall; young branches sparsely sericeous, with only simple trichomes; staminate peduncle 3–6 mm long, sericeous; staminate cymules sparse along the axis; staminate pedicels usually glabrous. Bolivia, Brazil, and Paraguay .............. B. fluviatilis
description: Published as part of Carrión, Juan F. & Amorim, André M., 2024, A new species of Bernardia (Euphorbiaceae, Acalyphoideae) with stellate trichomes from South America, pp. 1-7 in Phytotaxa 650 (1) on page 6, DOI: 10.11646/phytotaxa.650.1.1, http://zenodo.org/record/13216191