Bulbophyllum taeniophyllum var. denticulatoalatum Vuong & Aver. A. Flowering 2022, var. nov.
In: Bulbophyllum section Rhytionanthos (Orchidaceae) in Vietnam with description of new taxa and new national record, pp. 257-270 in Phytotaxa 530(3) 267-269, 2022, S. 257-270
unknown
Zugriff:
7.2. B. taeniophyllum var. denticulatoalatum Vuong & Aver. var. nov. (Fig 3 and Fig 4 G & H). Type:— VIETNAM, holotype specimen prepared on 29 April 2021 by Truong Ba Vuong, Phan Trong Quyet, BV 1160 (VNM00069901, LE01122221 http://en.herbariumle.ru/?t=occ&id=82694 photos) from cultivated plant obtained from a private garden in Da Lat Town, Lam Dong Province, originated from Ha Giang Province, Quan Ba District, Quyet Tien Commune, Lung Muoi Moutain. Etymology. The epithet refers to the denticulate lower margin of column wings. Description:—Epiphytic creeping herb. Pseudobulbs 1-leaved, green, dark green near apex and chestnut at base, clustering, ovoid to narrowly ovoid, oblique or straight, 1.2–3.3 cm tall. Leaves petiolate; petiole 0.6–2 cm long, usually twisted at base; leaf blade adaxially green, abaxially green or occasionally purple, oblong to narrowly oblong, 5.5–14.5 cm long, 1.5–2.1 cm wide, obtuse, slightly retuse. Inflorescence umbellate to subumbellate raceme; peduncle glabrous, purple or green, spotted with purple, slender, arising from base of pseudobulbs, 8–15 cm long, with 1 to 3 distant tubular bracts; rachis 1–5 mm long, with 2–13 flowers opening simultaneously; floral bracts glabrous, 4–5.5 mm long; pedicel and ovary glabrous, 1–1.4 cm long, ovary with 6 prominent ridges. Flower brownish-yellow to brown, tepals adaxially with red streaks, abaxially with small red dots, lip red above, yellowish below. Median sepal ovate, concave, 7.5–9 mm long, 4–5 mm wide, with 5 veins, acute, margin sparsely ciliate; lateral sepals glabrous, narrowly ovate, slightly falcate, 16–18 mm long, 4–5 mm wide, concave, twisted at base, upper and lower margin free at base, turning inward and connate from near base to apex, forming a fusiform tube, tapering to acute apex. Petals narrowly ovate, oblique, with 3 veins, acute, margin fimbriate on apical half. Lip mobile, with white thin ligament connected with column foot apex, simple, slightly, recurved, ligulate, glabrous, ca. 4 mm long, 1.3 mm wide, apex ...
Titel: |
Bulbophyllum taeniophyllum var. denticulatoalatum Vuong & Aver. A. Flowering 2022, var. nov.
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Autor/in / Beteiligte Person: | Dang, Minh Quan ; Averyanov, Leonid V. ; Dang, Van Son ; Maisak, Tatiana ; Bui, Van Huong ; Tu, Bao Ngan ; Truong, Ba Vuong |
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Zeitschrift: | Bulbophyllum section Rhytionanthos (Orchidaceae) in Vietnam with description of new taxa and new national record, pp. 257-270 in Phytotaxa 530(3) 267-269, 2022, S. 257-270 |
Veröffentlichung: | 2022 |
Medientyp: | unknown |
DOI: | 10.5281/zenodo.5838001 |
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