From 775ea0554fb98640935ca7d8e187a5fa9d1bae4b Mon Sep 17 00:00:00 2001 From: ggserver Date: Mon, 27 Jan 2025 17:02:24 +0000 Subject: [PATCH] Add updates up until 2025-01-27 16:57:21 --- .../92/7E469253D42C5B7BAE174BCDA0ED3212.xml | 973 ++++++++++++++++++ 1 file changed, 973 insertions(+) create mode 100644 data/7E/46/92/7E469253D42C5B7BAE174BCDA0ED3212.xml diff --git a/data/7E/46/92/7E469253D42C5B7BAE174BCDA0ED3212.xml b/data/7E/46/92/7E469253D42C5B7BAE174BCDA0ED3212.xml new file mode 100644 index 00000000000..a8d95380242 --- /dev/null +++ b/data/7E/46/92/7E469253D42C5B7BAE174BCDA0ED3212.xml @@ -0,0 +1,973 @@ + + + +Gymnema phuquocense (Apocynaceae, Asclepiadoideae), a new species from Vietnam + + + +Author + +Bui, Thu Ha +0000-0001-6971-0105 +Faculty of Biology, Hanoi National University of Education, 136, Xuan Thuy, Cau Giay, Ha Noi, Vietnam + + + +Author + +Le, Ngoc Han +0000-0003-2657-5091 +Department of Botany, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam + + + +Author + +Tran, The Bach +0000-0003-3798-5969 +Department of Botany, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam & Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam + +text + + +PhytoKeys + + +2025 + +2025-01-27 + + +251 + + +203 +210 + + + +journal article +10.3897/phytokeys.251.136457 + + + + + +Gymnema phuquocense +T. B. Tran & T. H. Bui + +sp. nov. + + + + +Figs 1 +, +2 +, +3 + + + + +Type. + + + +Vietnam +. • +Kien Giang province +: +Phu Quoc district +, +An Thoi commune +, + +28 March 2022 + +, + +10°3'32.926"N +, +103°59'52.867"E + +(lf., fl., fr.), + +Tran The Bach +et al. Bach 28032022-1 + +( +holotype +: +HN 80492 +!; +isotypes +: +HN 80493 +!, +HN 80494 +!, +HN 80495 +!, +HN 80496 +!, +VNM 00071049 +!) + +. + + + + +Diagnosis. + + + +G. phuquocense + +differs from + +G. yunnanense + +by the length of peduncle ( +3–4 mm +vs. +5–6 mm +), hairs on corolla lobe margins (absent vs. present), shape of seed (broadly ovate vs. ovate-oblong), and shape of corolline corona scales with 2 prominent longitudinal ridges on corolla tube (lanceolate vs. linear). + + + + + + + +Gymnema phuquocense +T. B. Tran & T. H. Bui + +A +habitat +B +flowering branch +C +fruiting branch +D +leaf, adaxial surface +E +leaf, abaxial surface +F, G, H +inflorescence +I +flower bud +J +flower (Photos by A. T. Vu, T. B. Tran). + + + + + +Description. + + +Lianas +, +10 m +or more. Stem pubescent with white trichomes; internodes +2.5–7.5 cm +long. +Leaves +opposite; petiole 0.5–1.0 cm long, +2.8–3.5 mm +diam., pubescent; blade elliptic, +8.8–10.3 cm +long, +4.3–6.5 cm +wide; adaxial surface glabrous except pubescent nerves, abaxial surface pubescent; base rounded to acuminate; apex acuminate; lateral veins in 4 pairs, retinerved. +Inflorescences +extra-axillary, +9–10 mm +wide, umbelliform, 16–20 - flowered; peduncle +3–4 mm +long, pubescent. +Flowers +with buds spherical-elliptic, +2–2.5 mm +diam., +3.2–4 mm +in diam. when anthetic; pedicel with erect hairs, +1.5 mm +long, +0.7–1 mm +in diam. +Sepals +broadly ovate, +1.7–1.8 mm +long, ca. +1.4 mm +wide; glabrous inside, outside hirsute, margin ciliate, apex rounded, with triangular colleters at the base, +0.34 mm +long, +0.23 mm +wide;. +Corolla +campanulate, inside glabrous, outside with sparse hairs; corolla lobes triangular, ca. +1.2 mm +long, ca. +1.3 mm +wide, yellowish; corolla tube with 5 prominent longitudinal scales (= corolline corona) in the sinuses of corolla lobes; scales lanceolate with one line of brownish hairs along each side, apex triangular, white, glabrous,. 4– +1.6 mm +long, +0.6–0.7 mm +wide, below part of scale rectangular, ca. 1 × +0.5 mm +,. +Pollinia +erect, rectangular-elliptic, +0.31 mm +long, +0.13 mm +wide; corpusculum rectangle-shaped, +0.16–0.17 mm +long, +0.06–0.07 mm +wide; caudicles +0.02 mm +long, +0.05 mm +wide. +Style head +hemispherical, +0.8–0.9 mm +high, +1.2–1.3 mm +wide. +Ovary +bi-carpellate. + +Follicle +1 + +, developed from only one of the two carpels, lanceolate, +5–6 cm +long, +2.2–2.5 cm +wide; outside pubescent; pericarp +0.9–1.1 mm +thick; mature fruits yellow. +Seeds +numerous, ca. 60 per follicle; seeds flattened, broadly ovate, +9–10 mm +long, +5–6 mm +wide, comma +25–30 mm +long, white. + + + + + + + +Gymnema phuquocense +T. B. Tran & T. H. Bui + +A, B +corolla +C +gynostegium +D +pollinarium +E, F +fruit +G, H, I +seeds (Photos by A. T. Vu, T. B. Tran). + + + + + +Etymology. + + +The specific epithet refers to the type locality, Phu Quoc district in +Vietnam +. + + + + +Distribution and ecology. + + + +Gymnema phuquocense + +was found growing in bright places at the secondary forest of Phu Quoc district, in association with + +Acacia auriculiformis +A. Cunn. ex Benth. + +, + +Chromolaena odorata +(L.) R. M. King & H. Rob. + +, + +Micromelum minutum +(G. Forst.) Wight & Arn. + +, + +Mimosa pudica +L. + +, + +Parinari annamensis +Hance + +, + +Psychotria asiatica +L. + +, + +Sida rhombifolia +L. + +, + +Stachytarpheta jamaicensis +(L.) Vahl + +, + +Streptocaulon juventas +(Lour.) Merr. + +, and + +Tetracera scandens +(L.) Merr + +.. Flowering and fruiting were observed in March-April. + + + + + + + +Gymnema phuquocense +T. B. Tran & T. H. Bui + +A +fruiting branch +B +flowering branch +C, D, E +leaf, adaxial surface +F, G, H +leaf, abaxial surface +I, J +inflorescence +K +calyx +L +corolla +M +5 scales on corolla +N +gynostegium +O, P +pollinarium +Q, R +fruit +S +seed (Drawn by Le Kim Chi). + + + + + +Conservation status. + + +Known from only one locality; the preliminary conservation status of + +Gymnema phuquocense + +is Data Deficient ( +DD +; +IUCN 2019 +). More fieldwork still need to be done in order to get a better understanding of the full natural distribution of this taxon. + + + + +Discussion. + + +The differences between + +Gymnema phuquocense + +and + +G. yunnanense + +are clear (Table +1 +). + +G. yunnanense + +is widely distributed on the mainland from SE. +Bangladesh +to +China +(S. +Yunnan +, SW. +Guangxi +) and +Vietnam +( +Kon Tum province +, +Kien Giang province +: Ha Tien) ( +Tran 2017 +, +POWO 2024 +) while + +G. phuquocense + +is only found on Phu Quoc island ( +Kien Giang province +). However, + +Gymnema +species + +, especially of the + +G. sylvestre + +group to which the new species belong, are difficult to distinguish. The + +G. sylvestre + +group includes + +G. muelleri +Benth. + +(Northern Territory, Queensland), + +G. tricholepis +Schltr. + +( +New Caledonia +, New +Guinea +, Queensland), + +G. stramineum +(P. I. Forst.) P. I. Forst. + +(Queensland), + +G. sylvestre +(Retz.) R. Br. ex Sm. + +(Tropical & Subtropical Old World), + +G. pachyglossum +Schltr. + +( +Philippines +), + +G. maingayi +Hook. f. + +(Malaya, +Myanmar +, +Thailand +), + +G. latifolium +Wall. ex Wight + +( +India +to S. +China +and and Indo-China) and + +G. longipedicellatum +(P. I. Forst.) P. I. Forst. + +(Queensland) ( +Liede-Schumann et al. 2022 +, +POWO 2024 +). Another species belonging to this group is + +G. thorelii + +recorded in +Laos +, + +G. thorelii + +( +Costantin 1912 +; +POWO 2024 +), also has many similar characteristics. However, + +G. phuquocense + +differs from + +G. thorelii + +by the leaf size (8.8–10.3 × 4.3–6.5 vs. 5–6 × 2.8–3.3), leaf surface (pubescent vs. glabrous), flower diameter ( +3.2–4 mm +vs. +2.5 mm +) and the indument of corolla lobe margins (without hairs vs. with hairs). + +G. phuquocense + +differs from other species of + +Gymnema + +by the following set of characteristics: peduncle +3–4 mm +long, corolla tube hairy but corolla lobe margins not cilliate and not purple, corolline corona scales higher than tube, follicles shorter than +4 cm +and seeds broadly ovate, +9–10 mm +long. + + + + + + +Morphological differences between + +G. phuquocense + +and + +G. yunnanense + +. + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
Characters +G. yunnanense + +G. phuquocense +
Number of lateral veins (pairs)5–64
Length of peduncle (mm)10–133–4
Corolla lobesCiliatenot ciliate
Shape of corolline coronaLinearLanceolate
Shape of seedovate-oblongbroadly ovate
Length of seed (mm)13–159–10
+ + + +Key to the species of +<taxonomicName id="636A6ED6A24118ACF497A65F83C787CC" class="Magnoliopsida" family="Apocynaceae" genus="Gymnema" kingdom="Plantae" order="Gentianales" phylum="Tracheophyta" rank="genus"> +<emphasis id="D12B920BE4F2E375FA237489F6D1FC03" italics="true">Gymnema</emphasis> +</taxonomicName> +in +<collectingCountry id="2DC6E02A5769680ABF9493D92A83270A" name="Vietnam">Vietnam</collectingCountry> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
1Corolla (excluding “ corolline corona ”) glabrous +2 +
–Corolla (excluding “ corolline corona ”) hairy +3 +
2Seeds 12.5–14 × 8–9 mm + +G. acuminatum + +
–Seeds ca. 8 × 4 mm + +G. sylvestre + +
3Corolla margins purple; fruit 4–6 cm wide + +G. griffithii + +
–Corolla margins white or yellow; fruit less than 4 cm wide +4 +
4Corolline corona scales shorter than tube +5 +
–Corolline corona scales longer than tube +7 +
5Corolla lobes densely pubescent inside + +G. latifolium + +
–Corolla lobes glabrous inside +6 +
6Petiole 2–6 cm long; seeds ca. 1.5 × 1 cm, comma ca. 4 cm long + +G. inodorum + +
–Petiole 0.5–1 cm long; seeds ca. 1.4 × 0.6 cm, comma ca. 3 cm long + +G. foetidum + +
7Peduncle 10–13 mm long; corolla lobes cilliate; seeds ovate-oblong, 13–15 mm long + +G. yunnanense + +
–Peduncle 3–4 mm long; corolla lobes not cilliate; seeds broadly ovate, 9–10 mm long + +G. phuquocense + +
+ + +Additional specimens examined + + + +G. acuminatum + +: +Vietnam +. +Dong Nai +: Trang Bom, +28 May 1919 +, Poilane 40886 ( + +VNM + +); + +G. foetidum + +: +Vietnam +, +Dak Lak +: Krong Pac, +1 June 1979 +, N. T. Ban, Ban 365 ( + +HN + +); + +G. griffithii + +: +Vietnam +. +Dak Lak +: Ea H’leo, Ea Sol, +8 August 2011 +, Tran The Bach, VK 4676 ( + +HN + +); + +G. inodorum + +: +Vietnam +. +Hoa Binh +, Do Dang Ly 584 A, 584 B, 584 +BC +, 584 D ( +NIMM +); + +G. latifolium + +: +Vietnam +. +Ninh Binh +: Cuc Phuong, +NMC +1194, MVX 151, +NMC +1321, MVX 658 ( + +HN + +) – +Quang Tri +: +Huong Hoa +, +16 March 2014 +, Tran The Bach, VK 5880 ( + +HN + +) – +Thanh Hoa +, +15 October 1997 +, +VN +305 ( + +HN + +); + +G. sylvestre + +: +Vietnam +. +Bac Giang +, +6 November 1940 +, Petelot 2435 ( + +VNM + +) – +Ninh Thuan +: Phan Rang, +2 March 1924 +, Poilane 9856 ( + +VNM + +), +4 March 1923 +, Poilane 5563 ( + +VNM + +) – +Quang Ninh +, +22 August 2002 +, V. X. Phuong 5406 ( + +HN + +); +22 August 2002 +, V. X. Phuong 5479 ( + +HN + +); +22 August 2002 +, V. X. Phuong 5482 ( + +HN + +); +22 August 2002 +, V. X. Phuong 5510 ( + +HN + +); Tien 213 ( + +HN + +) – +Quang Tri +: Gio Linh, +13 May 2007 +, Tran The Bach, VK 1060 ( + +HN + +) – +Vinh Phuc +, V. X. Phuong 1061 ( + +HN + +), T. D. Ly 217 ( + +HN + +) – Thua Thien Hue: Lang Co, 199 ( + +VNM + +); + +G. yunnanense + +: +Vietnam +. +Kien Giang +, V. X. Phuong 10124 ( + +HN + +) – +Kon Tum +: Dak Glei, VH 1418, ( + +HN + +), +2 April 2009 +, Tran The Bach, VK 2593 ( + +HN + +). + + + + \ No newline at end of file