Bulbophyllum squamiplectum 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 squamiplectum

description: <i>Bulbophyllum squamiplectum</i> J.J.Verm., Schuit. &amp; de Vogel, <i>sp. nov.</i> (Fig. 17) TYPE: Indonesia, Papua Province, Wamena, Lake Habbema, 2800 m alt., Oct. 1938, <i>Brass 10794</i> (holotype L!). DIAGNOSIS. Characterized within series C by the glandular-papillose patch along the median line on the adaxial side of the lip. <i>Bulbophyllum radula</i> has a similar general habit but has an adaxially glabrous lip. Medium-sized epiphyte with patent to pendulous, sparsely branched rhizomes to 30 cm long, over which the roots grow towards its base. <i>Rhizome</i> 1.4–3.0 mm diam., sections between pseudobulbs 0.4–0.8 cm long, arising from the basal node of the pseudobulb; rhizome scales thin, rather persistent. <i>Pseudobulbs</i> distinct, ellipsoid(-rectangular) to (ob-)ovoid(-rectangular), 0.7–1.5 × 0.4–0.7 cm, 3-angular, deeply concave on the side where the new shoot arises. <i>Leaf</i>: petiole 1.8– 2.5 mm long; blade probably somewhat succulent but dorsoventrally flattened, elliptic to ovate, 16–32 × 6–15 mm, ratio length/width 1.7–4.2; acute. <i>Inflorescences</i> clustered from the basal node of the pseudobulbs, 1–2 cm long, 1-flowered. Peduncle 3–6 mm long, scales 1. <i>Floral bracts</i> ca. 3.8 mm long. <i>Flowers</i>: pedicel plus ovary ca. 3.0 mm long, basal node ca. 1.5 mm above the floral bract attachment. <i>Median sepal</i> free, recurved, ovate, 5.8–8.2 × 1.7–2.2 mm, ratio length/ width 3.2–3.8; acuminate, margins entire; glabrous, 3-veined. <i>Lateral sepals</i> as the median but ovatetriangular, 7.8–8.0 × 1.9–2.4 mm, ratio length/width 3.3–4.2. <i>Petals</i> porrect, elliptic to ovate, 1.6–2.1 × 1.1– 1.3 mm, ratio length/width 1.4–1.7; obtuse to acute, margins entire, ciliate, surface glabrous; 1-veined. <i>Lip</i> slightly recurved, oblong, 1.8–2.0 × 0.9–1.2 mm, ratio length/width 1.6–2.2 (without spreading); truncate, margins entire; very thick; adaxially concave proximally, with two narrow ridges which start near the base, close to the margin, then converge slightly over the adaxial surface up to approx. half-way the length of the lip, distal part of the lip slightly concave, with a wide glandular-papillose patch along the median line, towards the base this patch divides into two, lining the inner surface of the ridges, adaxial surface otherwise glabrous; abaxially convex, only slightly furrowed along the median line, surface glabrous. <i>Column</i> including stelidia 1.0– 1.2 mm long, stigma obovate, foot distally widened, triangular. Stelidia upwards falcate, triangular, ca. 0.6 mm long, acute. <i>Pollinia</i> 4, the inner more than half as long as the outer. COLOURS: sepals purple, white towards the margins. ETYMOLOGY: <i>squama</i> (Latin) = a scale, <i>plecta</i> (Latin) a braid, referring to the overlapping pattern of pseudobulbs and leaves. HABITAT AND ECOLOGY: sub-pendent epiphyte tufted on branches of a tall tree. Elevation 2800 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 page 327, DOI: 10.15517/lank.v20i3.44438, http://zenodo.org/record/4455665