identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
990DD245FFA8557FFCFC840BFA3EFC84.text	990DD245FFA8557FFCFC840BFA3EFC84.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Helicteres ubonensis Chantar. & Kantachot 2024	<div><p>Helicteres ubonensis Chantar. &amp; Kantachot, sp. nov. — Fig. 1–2</p><p>Etymology. The specific epithet refers to the collections from Ubon Rat- chathani province where the species was discovered.</p><p>Typical of this species are narrowly elliptic-oblong leaves. Corolla purplish white or pinkish. Capsule pointed as beak at the apex and surface covering with stellate hairs. — Type: P. Chantaranothai, C. Kantachot &amp; P. Kludwong 2021-150 (holo KKU; iso AAU, QBG), Thailand, Khong Chiam, Napho Klang, along trail to Soi Sawan Waterfall, 10 Aug. 2019 .</p><p>Shrub, 1–2 m tall; twigs erect and some ascending, terete, young twigs brownish, glabrescent; twigs blackish, glabrescent; bark thick with fibres. Leaves spiral, narrowly elliptic-oblong, (8–) 10–15 by (1–) 2–3 cm, chartaceous, apex acute or acuminate, base cuneate or obtuse, margin entire, upper surface green, glabrous or glabrescent, lower surface pale green, with stellate hairs; midrib prominent on the lower surface; basal veins 3; lateral veins (3–)5–8 pairs; petioles 4–9 mm long, terete, hairy; stipules caducous. Inflorescences axillary or terminal, cymes, epicalyx present; peduncle 4–5 mm long, hairy. Flowers valvate, with short pedicels. Calyx campanulate, with 5 lobes, lobes unequal, green, hairy. Petals 5, free, spathulate, 7–9 by 4–5 mm, purplish white or pinkish. Androgynophore c. 5 mm long. Stamens 10, alternating with 5 staminodes, filament column glabrous; anther c. 0.5 mm long. Stigma 5, pointed apically. Ovary superior, surrounded by the filament column, longitu- dinally 5-lobed, hairy; style c. 1 mm long; ovules numerous, 8 per locule. Fruit capsular, cylindric, straight, pointed at the apex,2.5–3.5 by 0.7–1 cm, fruit stalk 2–6 mm long; young fruit green, mature fruit brown, with stellate hairs. Seeds rhomboid, 2–3 by 1.5–2 mm, dull black.</p><p>Distribution — Thailand (Ubon Ratchathani: Khong Chiam, Soi Sawan Waterfall and Pha Taem National Park).</p><p>Habitat &amp; Ecology — In open space on rock platform with dry evergreen forest. Flowering and fruiting at least in July–October.</p><p>Vernacular name — Khi on ging dum (ขี้อ้นกิ่งดำ�).</p><p>Additional collections studied (paratypes). S. Poompo 10 (deposited at Department of Biological Science Herbarium, Ubon Ratchathani University), Thailand, Ubon Ratchathani, Khong Chiam, Huai Phai, Pha Taem National Park, s.d .; C. Kantachot 2020-32 (KKU), Thailand, Ubon Ratchathani, Khong Chiam, Napho Klang, Soi Sawan Waterfall, along Sae Soi creek, 30 July 2020 .</p><p>Notes — Helicteres ubonensis is similar to H. angustifolia L. but differs in having narrow leaves, which are more or less oblong or elliptic-oblong, twigs brownish or blackish. It is also distinctive in the apically narrowed to pointed stigma, absence of setose hairs on the capsule surface and the capsule apex beaked (Table 1).</p><p>NEW KEY TO THE SPECIES OF HELICTERES FROM THAILAND</p><p>Because of the discovery of several new species and new records, a new identification key to the species of the genus Helicteres for Thailand is provided:</p><p>1. Leaf margin entire or rarely with a few minute teeth near apex....................................... 2</p><p>1. Leaf margin serrate or dentate from base........... 9</p><p>2. Stems prostrate............................... 3</p><p>2. Stems erect or ascending....................... 4</p><p>3. Upper surface of leaves hairy; basal veins 3............................................ H. oblongifolia</p><p>3. Upper surface of leaves glabrous; basal veins 5........................................... H. prostrata</p><p>4. Inflorescence a lax thyrse............. H. thailandica</p><p>4. Inflorescence a short cyme...................... 5</p><p>5. Leaf margin entire. Stigma flattened, slightly 5-lobed..................................... H. angustifolia</p><p>5. Leaf margin entire or slightly serrate near apex. Stigma simple, narrowed to a point or divided into 5 teeth.... 6</p><p>6. Young twigs glabrous or sparsely hairy............. 7</p><p>6. Young twigs hairy.............................. 8</p><p>7. Leaves lanceolate or oblong-lanceolate. Capsule with vil- lous hairs.......................... H. lanceolata</p><p>7. Leaves narrowly elliptic-oblong. Capsule without villous hairs.............................. H. ubonensis</p><p>8. Leaves coriaceous, scabrous on upper surface. Apex of capsule without beak..................... H. lanata</p><p>8. Leaves chartaceous, glabrous on upper surface. Apex of capsule with beak..................... H. geoffrayi</p><p>9. Leaves ovate, broadly ovate to more or less rounded 10</p><p>9. Leaves oblong-lanceolate or oblong-ovate......... 11</p><p>10. Capsule twisted. Lower surface of leaves glabrescent or scabrous............................... H. isora</p><p>10. Capsule not twisted. Both surfaces of leaves with soft hairs.................................. H. viscid</p><p>11. Leaves chartaceous. Calyx less than 1 cm long. Capsule 1.5–2 cm long........................ H. elongata</p><p>11. Leaves coriaceous. Calyx more than 1 cm long. Capsule 2.5–5 cm long......................... H. hirsuta</p></div>	https://treatment.plazi.org/id/990DD245FFA8557FFCFC840BFA3EFC84	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Kantachot, C.;Chantaranothai, P.	Kantachot, C., Chantaranothai, P. (2024): Helicteres ubonensis (Malvaceae), a new species from Thailand. Blumea 69: 13-15, DOI: 10.3767/blumea.2024.69.01.02, URL: https://doi.org/10.3767/blumea.2024.69.01.02
