Plukenetia, Cardinal-McTeague & Gillespie, 2020

Cardinal-McTeague, Warren M. & Gillespie, Lynn J., 2020, A Revised Sectional Classification of Plukenetia L. (Euphorbiaceae, Acalyphoideae) with Four New Species from South America, Systematic Botany (Basel, Switzerland) 45 (3), pp. 507-536 : 518

publication ID	https://doi.org/10.1600/036364420X15935294613572
persistent identifier	https://treatment.plazi.org/id/03B2627D-FF9E-2E2C-FE0D-FB795C71F8D3
treatment provided by	Felipe
scientific name	Plukenetia
status

Treatment

KEY TO THE SPECIES Of PLUKENETIA SECT. MADAGASCARIENSES

1. Styles entirely connate, 3.5–5.5 mm long, stylar column obconic or obovoid, free style arms absent; androecia 0.6–1 mm long, anthers 15–20; inflorescences thyrses, terminal and appearing leaf-opposed, staminate flowers in distinct cymules; glandular knobs absent at petiole apex.......................................................................................................................... 6. P. ankaranensis View in CoL 1. Styles 55–60% connate, entire style 8–16 mm long, stylar column cylindrical, free style arms slender, tapered; androecia 1.6–4 mm long, anthers 18–601; inflorescences very narrow thyrses or racemes, axillary or terminal, staminate flowers single per node or in condensed cymules; glandular knobs 1–2 at petiole apex, sometimes minute.................................................................................................. 2 2. Inflorescences terminal racemes, staminate flowers single per node; bracts triangular, 1–2 mm long, sessile, eglandular; androecia 1.6–1.8 mm long, anthers 18–30 on oblong-ellipsoid receptacle; leaf blades triangular-ovate or ovate......................................... 7. P. decidua View in CoL

2. Inflorescences axillary thyrses, staminate flowers in condensed cymules; bracts lanceolate, 3–8 mm long, usually petiolate and 2-glandular; androecia 3–4 mm long, anthers 35–60 1 on narrowly conical receptacle; leaf blades broadly ovate or orbicular...................................................................................................... 8. P. madagascariensis View in CoL

6. PLUKENETIA ANKARANENSIS L.J.Gillespie, Syst. Bot. View in CoL 32 (4): 797. 2007. TYPE: MADAGASCAR. Antsiranana Province: Special Reserve #3, Ankarana, ca. 7 km SE of Matsaborimanga, trail between Camp Anglais and river (ca. 3 km SW Camp Anglais), [-12.917°, 49.1°], 150 m, 28 November 1990, L.J. Gillespie 4076 (holotype: MO! [accession 6128360, barcode MO-2246124 ]; isotypes: CAN! [accession 589544], DAV! [accession 182695, barcode DAV 182695 ], G! [barcode G00386814], K! [barcode K001044974], L!, NY! [barcode 01104761], P! [barcode P00717080], TAN!, US!; FAA preserved material at MO) .