Bulbophyllum teinodragma J. J. Verm., Schuit. &amp; de Vogel, sp. nov.
Creators: name: Vermeulen, Jaap J.
name: Schuiteman, André
name: De Vogel, Edward F.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Orchidaceae
Bulbophyllum
Bulbophyllum teinodragma

description: <i>Bulbophyllum teinodragma</i> J.J.Verm., Schuit. &amp; de Vogel, <i>sp. nov.</i> (Fig. 10) TYPE: Papua New Guinea, Normanby Island, Mt Pabinama, 700 m, 8 May 1956, <i>Brass 25777</i> (holotype L!; isotype AMES!). DIAGNOSIS. Identified within section <i>Polymeres</i> by the distinctly elongated fertile sympodia from which inflorescences develop. In addition, it differs from <i>Bulbophyllum melinanthum</i> Schltr, which is the most similar species, by its obovate (versus ovate), sparsely ciliolate (versus entire to minutely papillose) petals. Small epiphyte with creeping rhizomes and spreading roots. <i>Rhizome</i> ca. 1.2 mm diam., sections between pseudobulbs 0.2–0.3 cm long, arising from the basal node of the pseudobulb; rhizome scales thin, little persistent. <i>Pseudobulbs</i> distinct, ovoid, 1.2–1.4 × 0.3–0.4 cm, (?)angular. <i>Leaf</i>: petiole 3–4 mm long; blade elliptic to obovate, 3.0–4.2 × 0.7–0.8 cm, ratio length/width 4.1–5.8; acute. <i>Inflorescences</i> many together on a distinctly elongated, sparsely branched sympodium, 2.3–3.0 cm long, 1-flowered. Peduncle 1.0– 1.5 cm long, scales 1. <i>Floral bracts</i> 1.8–2.3 mm long. <i>Flowers</i>: pedicel plus ovary 10–12 mm long, basal node 0.8–2.0 mm above the floral bract attachment. <i>Median sepal</i> free, recurved, elliptic, 3.4–3.7 × 1.7–1.8 mm, ratio length/width 1.8–2.1; apiculate, margins entire, minutely papillose; glabrous, 3-veined. <i>Lateral sepals</i> as the median, but ovate-triangular, 3.4–4.5 × 1.5–2.0 mm, ratio length/ width 2.0–2.3, acute to apiculate, margins glabrous. <i>Petals</i> porrect, obovate, 1.6–2.0 × 1.0– 1.2 mm, ratio length/width 1.4–1.7; rounded, margins slightly erose, sparsely ciliolate, surface glabrous; 1-veined. <i>Lip</i> slightly curved, ovate, slightly attenuated in the distal half, tapering into a short, oblong apical part, 1.7–2.0 × 0.8–1.1 mm, ratio length/width 1.8–2.3 (without spreading); rounded, margins entire, approx. glabrous; thick; adaxially concave proximally and with two parallel, short, distally somewhat tapering ridges close together near the base, distally slightly convex, adaxial surface glabrous; abaxially with a deep median furrow from base to apex bordered by two distinct, rounded, papillose ridges. <i>Column</i> including stelidia ca. 1.4 mm long, stigma narrowly obovate, foot widened, with patent, obtuse lateral teeth. Stelidia straight, narrowly triangular, subulate distally, ca. 0.7 mm long, acute. <i>Pollinia</i> 4, the inner more than half as long as the outer. COLOURS: unknown. ETYMOLOGY: <i>teinos</i> (Greek) = stretched, <i>dragma</i> (Greek) sheaf, referring to the elongated fertile sympodia. HABITAT AND ECOLOGY: low epiphyte in rainforest. Elevation 700 m.
description: Published as part of <i>Vermeulen, Jaap J., Schuiteman, André &amp; De Vogel, Edward F., 2020, Sixteen new species of Bulbophyllum section Polymeres (Orchidaceae) from New Guinea, pp. 301-330 in Lankesteriana 20 (3)</i> on pages 315-317, DOI: 10.15517/lank.v20i3.44438, http://zenodo.org/record/4455665