Parodiolyra luetzelburgii ( Pilger 1930: 1049 ) Soderstrom & Zuloaga (1989: 70)

Lopes-Neto, Raimundo Balieiro & Viana, Pedro Lage, 2022, Flora of the Serra do Cachimbo (Eastern Amazon, Brazil): Bambusoideae (Poaceae), including the description of two new species, Phytotaxa 550 (2), pp. 99-129 : 121-122

Parodiolyra luetzelburgii ( Pilger 1930: 1049) Soderstrom & Zuloaga (1989: 70)

≡ Olyra luetzelburgii Pilger (1930: 1049) .

Type :— BRAZIL. Nord-Brasilien , Igarapé , Caicán, auf Sand, October 1927, Luetzelburg 21354 [holotype B, isotypes IAN, R, US (fragment ex B)] .

Rhizomes not seen. Culms ca. 70 cm tall, erect or leaning on the vegetation, internodes 4–8.5 cm long, hollow, smooth, glabrous; nodes dark brown, pubescent. Leaf sheaths glabrous, margins densely ciliate; ligules ca. 0.4 mm long, symmetrical, membranous-ciliate; pseudospikelets 2–3 mm long, flat, densely villous; blades 8–10 × 1.5–3 cm, ovate-lanceolate, densely hispid to scabrous on both surfaces, or adaxially scabrous and abaxially densely pubescent, slightly asymmetrical, base truncate, margins long-ciliate, apex acuminate. Synflorescences 4–8 × 2.5–4 cm, pyramidal, rachis hispid or scabrous, pedicels 2–3 cm long, filiform, hispid. Male spikelets 4–5 × 0.7 mm, lanceolate, stramineous (in siccus), hispid, falling entire; lemma 3–4-nerved, hispid, apex acuminate; palea 2-nerved, sparsely hispid in the middle portion, apex acute; stamens 2, included, filaments 0.5 mm long, glabrous, anthers ca. 3 mm long, yellowish (in siccus). Female spikelets 3–4 × 1.5–1.8 mm, ellipsoid, purplish (in siccus), scabrous with retrorse trichomes, hirsute at the apex with short trichomes; glumes subequal, separated by a conspicuous, thickened internode, apex acute; lower glume 7–9-nerved; upper glume 5–7-nerved; anthecium 2–2.4 × 1–1.2 mm, lanceolate, stramineous (in siccus), glabrous, caducous; lemma 5-nerved; palea 2-nerved; lodicules not seen; ovary ca. 0.5 × 0.5 mm, glabrous, style ca. 1 mm long, glabrous, stigma 2, plumose. Caryopsis not seen.

Specimens examined: — BRAZIL. Mato Grosso: Colíder, Estrada Santarém-Cuiabá, BR-163, km 762, a 30 km de Guarantã, 19 April 1983, Amaral et al. 815 ( INPA, MO, NY, RB) .

Distribution and habitat: —This species is distributed in Brazil, Colombia, Guyana, French Guyana, Suriname and Venezuela ( Soderstrom & Zuloaga 1989). In Brazil, it is registered in the North (AC, AM, AP, PA and RR), Central-West (MT) and Northeast (MA) regions ( Oliveira et al. 2020c). It grows in open areas, sandy slopes and mountain ranges from 100 to 600m ( Soderstrom & Zuloaga 1989). In the Serra do Cachimbo it was found in Open ombrophilous forest.

Comments: — Parodiolyra luetzelburgii can be recognized by the blade margins long-ciliate and male spikelets lanceolate and hispid. To differentiate it from Taquara micrantha (Kunth in Humboldt et al. 1815: 160) I.L.C.Oliveira & R.P.Oliveira in Oliveira et al. (2020a: 78), see the comments under that species.