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Tuesday, February 13th, 2024
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| 2:27a | [Botany • 2024] Piper motuoense (Piperaceae) • A New Species from Xizang, China
Abstract Piper motuoense X.W.Qin, F.Su & C.Y.Hao, a new species of Piperaceae from Xizang, China, is described and illustrated in this paper. The new species resembles P. yinkiangense and P. anisotis, but it can be readily distinguished from the compared species by several characteristics. Gonophyll leaves are chartaceous and the leaf secondary vein count is 7–9, with the outermost pair being very weak when there are nine veins. Additionally, the apical pair arises 2–4 cm above the base and the leaf base is asymmetrical, with bilateral petioles that cling and heal together. Pistillate floral bracts are sessile, with 3, 4 or 5 stigmas. The description of the new species includes photographs, detailed descriptions, notes on etymology, distribution and habitat, as well as comparisons with morphologically similar species. Key words: Asia, Paleotropical flora, Piperales, Sino-Himalaya, taxonomy
Piper motuoense X.W.Qin, F.Su & C.Y.Hao, sp. nov. Diagnosis: The new species is morphologically similar to P. yinkiangense, but can be easily distinguished from the latter in several aspects. The leaf-blades 12.5–18 × 3.5–6.5 cm, elliptic or ovate to lanceolate (vs. 11–14 × 6.5–8.5 cm, oblique-ovate), chartaceous (vs. membranous), abaxially sparsely villous along the mid-vein (vs. abaxially sparsely hispidulous), gonophyll leaves 7–9 secondary vein pairs, the outer pair arising 2–4 cm above base (vs. 8–9, outer pair arising 1–2 cm above base), base bilaterally clinging to the petiole and overlap together (vs. basal sinus 1–2 mm wide on side of longer and wider lobe, 4–5 mm wide on other side, bilaterally free for 2–3 mm), floral bracts sessile (vs. petiolate) and stigmas 3, 4 or 5 (vs. 4). P. motuoense also resembles P. anisotis in the shape of leaves and fruit, but differs from the latter in the leaves vein 7–9 (vs. 5–7), leave base bilateral clinging to petiole and overlap together (vs. bilateral free for 1–2 mm) (Table 1). Etymology: The specific epithet refers to its distribution, Motuo County, Xizang, in China. Vernacular name: Chinese: 墨脱胡椒 (mò tuō hú jiāo). ‘Mò Tuō’ is a place name, which is the literal translation of the specific epithet motuoense and ‘hú jiāo’ is the Chinese name of Piper. Fan Su, Xiao-Wei Qin, Rui Fan, Lin Yan, Xun-Zhi Ji and Chao-Yun Hao. 2024. Piper motuoense, A New Species of Piperaceae from Xizang, China. PhytoKeys. 238: 85-94. DOI: 10.3897/phytokeys.238.115494 | ||||||
| 6:03a | [Herpetology • 2024] Bothriechis klebbai, B. khwargi, B. rasikusumorum, etc. • Systematic Revision of the Eyelash Palm-Pitviper Bothriechis schlegelii (Serpentes: Viperidae), with the Description of Five New Species and Revalidation of Three
Abstract We present a taxonomic review and systematic revision of the Eyelash Palm-Pitviper Bothriechis schlegelii (Berthold, 1846) based on examination of 400 museum specimens, a phylogeographic analysis of 818 locality records, and 80 individuals sampled for molecular characters. We find morphological and phylogenetic support for five new species of Bothriechis Peters, 1859, which we describe here based on their unique combination of molecular, meristic, hemipenial, and color pattern characteristics. They are: B. klebbai sp. nov., B. rasikusumorum sp. nov., B. khwargi sp. nov., B. rahimi sp. nov., and B. hussaini sp. nov. Finally, we revalidate the names B. nigroadspersus (Steindachner, 1870), B. nitidus (Günther, 1859), and B. torvus (Posada Arango, 1889a), and provide a redescription of B. schlegelii. Key Words: Colombia, Costa Rica, Ecuador, Panama, phylogeography, Serpentes, snake, Squamata, venomous, taxonomy Alejandro Arteaga, R. Alexander Pyron, Abel Batista, Jose Vieira, Elson Meneses Pelayo, Eric N. Smith, César L. Barrio Amorós, Claudia Koch, Stefanie Agne, Jorge H. Valencia, Lucas Bustamante and Kyle J. Harris. 2024. Systematic Revision of the Eyelash Palm-Pitviper Bothriechis schlegelii (Serpentes, Viperidae), with the Description of Five New Species and Revalidation of three. Evolutionary Systematics. 8(1): 15-64. DOI: 10.3897/evolsyst.8.114527  | ||||||
| 11:22a | [Botany • 2020] Leptomischus hiepii (Rubiaceae: Argostemmateae) • A New Species from northwestern Vietnam
Abstract Leptomischus hiepii, a new species of the tribe Argostemmateae from Son La province, northwestern Vietnam, is described and illustrated. Morphologically it allies to L. wallichii, L. erianthus and L. funingensis by sharing a similar habit, large stipules and similar corolla shape, but it differs by its anisophyllous leaves, 1-flowered inflorescences, homostylous flowers and tubular-campanulate corollas. Keywords: Argostemmateae, endemism, plant diversity, plant taxonomy
Leptomischus hiepii L.Wu, K.S. Nguyen & Aver., sp. nov. Diagnosis: Similar to L. wallichii, L. erianthus and L. funingensis, but differs mainly by its anisophyllous leaves (vs. isophyllous), stipules usually 2-lobed (vs. entire or 3-lobed), 1-flowered inflorescence (vs. several-flowered), homostylous flowers (vs. heterostylous), and corolla tubular-campanulate, 3.2–4 cm long (vs. tubular, tubular-infundibulariform or tubular-salverform, 1.4–1.6(–3) cm). Etymology: The specific epithet honors Dr. Nguyen Tien Hiep, a famous botanist who made significant contributions to the plant taxonomy and nature conservation in Vietnam. Lei Wu, Leonid V. Averyanov, Khang Sinh Nguyen, Tatiana V. Maisak and Yan-Hua Hu. 2024. Leptomischus hiepii, A New Species of Rubiaceae from Vietnam. PhytoKeys. 166: 105-115. DOI: 10.3897/phytokeys.166.55731 | ||||||
| 3:16p | [Botany • 2024] Ceiba camba (Malvaceae: Bombacoideae) • A New Species of Ceiba previously confused with Ceiba speciosa
Abstract Based on the review of herbarium specimens, geo-referenced live images, and field observations, a new species of the genus Ceiba (Malvaceae) is described. Ceiba camba, the new species, has previously been confused with other species in the Ceiba insignis complex, specially with C. speciosa, and went undifferentiated despite having a wide distribution in the lowlands of central-western South America and being quite common. However, the new species here described shows clear visible morphological differences from C. speciosa and the other members of the genus. The main similarities and differences with other morphologically and geographically close species of the C. insignis complex (C. chodatii, C. crispiflora, C. insignis, C. lupuna, C. pubiflora, C. speciosa) are discussed. Key words: Chiquitania, pink bottle tree, Southwest Amazon, floss silk tree, toborochi
Ceiba camba Drawert, Angulo & Catari, sp. nov. It differs from all species of the genus Ceiba by the combination of short and winged petiolules; calyx cylindrical to elongated-campanulate; petals distally pale pink to magenta and basally white to deep yellow; 5 lobed staminal appendages, lobes bifid, scarcely pilose to pilose and whitish, yellow to pinkish; stamens fused into staminal tube; and stigma deep red to carmine. Etymology:—The specific epithet “camba” is a noun used as a demonym to refer to the inhabitants of the eastern lowlands in Bolivia, mainly in the departments of Santa Cruz, Beni and Pando, and largely coincides with the distribution of the species.   Heinz Arno Drawert, Alejandro A. Angulo and Juan C. Catari. 2024. A New Species of Ceiba (Malvaceae, Bombacoideae), previously confused with Ceiba speciosa. Phytotaxa. 636(3); 207-219. DOI: 10.11646/phytotaxa.636.3.1 facebook.com/ColectivoMODOfotovideografi  Resumen A partir de la revisión de muestras de herbario, imágenes en vivo georeferenciadas y observaciones en campo, se describe una nueva especie del género Ceiba (Malvaceae) perteneciente al complejo de Ceiba insignis. Ceiba camba, la nueva especie, hasta ahora ha sido confundida con otras del complejo Ceiba insignis, especialmente C. speciosa, y pasó desapercibida pese a contar con una amplia distribución en las tierras bajas de Sudamérica centroccidental y ser bastante común. Sin embargo, la nueva especie descrita aquí muestra claras diferencias morfológicas visibles con C. speciosa y los otros miembros del género. Se discuten las principales similitudes y diferencias con otras especies del complejo C. insignis (C. chodatii, , C. crispiflora, C. insignis, C. lupuna, C. pubiflora, C. speciosa) morfológica y geográficamente cercanas. Palabras clave: árbol botella rosado, Chiquitania, Sudoeste Amazonia, árbol de seda, toborochi |
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