[Most Recent Entries] [Calendar View]
Tuesday, December 24th, 2024
| Time | Event | ||||||
| 2:03a | [Ichthyology • 2022] Moema juanderibaensis • A New Species of the Seasonal Killifish Genus Moema (Cyprinodontiformes: Rivulidae) from the Piraí watershed in the Southwest Amazon Basin
Abstract Moema, a genus of the Rivulidae family, currently comprises 20 valid species. Most of these species inhabit temporary pools in the Amazon basin and only one species is found in the upper Paraguay basin. A new member of this genus from the upper Río Madeira drainage is here described. Males of the new species differ from all congeners by the combination of a color pattern consisting of oblique, sometimes chevron-like, irregular rows of red and light blue double-dots on body; dark yellowish to golden pectoral fins with no visible markings; and a stripe pattern on the ventral section of caudal fin with a very narrow black marginal line, intermittent or even absent. The existence of infrageneric species groups within Moema, the geographic distribution and taxonomic aspects of the species present in the Ríos Mamoré and Iténez/Guaporé rivers drainages, and the observation of intraspecific aggression between males and amphibious lifestyle in the new species are discussed. Keywords: Bolivian Amazon basin; New species; Rivulids; Taxonomy; Temporary water bodies
Moema juanderibaensis, new species Diagnosis. Moema juanderibaensis differs from congeners by a unique combination of the following characters on males: pattern of oblique, sometimes chevron-like, irregular rows of red and light blue double-dots on flanks; dark yellowish to golden pectoral fin with no visible markings (dots or spots); and ventral part of caudal-fin stripe pattern with very narrow black marginal line, intermittent or even absent (vs. never in this combination). The new species is distinguished from Moema apurinan, M. beucheyi, M. funkneri, M. hellneri, M. heterostigma, M. nudifrontata, M. pepotei, M. piriana, M. portugali, M. quiii, M. schleseri, and M. staecki by the oblique arrangement of red and light blue double-dots on flanks (vs. flank color pattern arranged in horizontal lines or rows of dots). It differs from M. manuensis, M. obliqua, M. peruensis, M. rubrocaudata, M. schleseri, and M. wischmanni by the presence of red dots on flanks mostly arranged in oblique, sometimes chevron-like, rows (vs. absence of dots, or arranged in vertical rows or randomly distributed). It is distinguishable from M. boticarioi, M. kenwoodi, and M. obliqua by the absence of dots, spots or any other markings on pectoral fins of males (vs. presence of dark reddish-brown dots, few dark green dots or longitudinally elongated dark brown spots); from M. claudiae by the absence of black humeral blotch in males (vs. presence); and from M. schleseri by the ground color of pectoral fins (brown-yellowish to golden vs. hyaline) and color pattern of ventral section of caudal fin (thin black marginal line, sometimes intermittent and inconspicuous or even absent, and broad deep orange to red stripe vs. ventralmost black stripe broad, and orange stripe with dark red dots). Additionally, it is also distinguished from M. boticarioi by the absence of brown dots or other marks on dorsum (vs. dorsum with brown dots). Etymology. Named juanderibaensis in reference to the name of the ranch “Juan Deriba” where the type locality is situated. An adjective. Heinz Arno Drawert. 2022. A New Species of the Seasonal Killifish Genus Moema (Cyprinodontiformes: Rivulidae) from the Piraí watershed in the Southwest Amazon basin. Neotrop. ichthyol. 20(4). DOI: 10.1590/1982-0224-2022-0067 Resumen: Moema, un género de la familia Rivulidae, actualmente comprende 20 especies válidas. La mayoría de estas especies habitan en charcos temporales de la cuenca amazónica y solo una especie se encuentra en la cuenca alta del Río Paraguay. Un nuevo miembro de este género de la cuenca alta del Río Madeira es descrito aquí. Los machos de la especie nueva se diferencian de todos los congéneres por la combinación de un patrón de color de filas irregulares oblicuas, a veces en forma de chevrón, de puntos dobles rojos y azul claro en el cuerpo; aletas pectorales de color amarillento oscuro a dorado sin marcas visibles; y un patrón de rayas en la sección ventral de la aleta caudal con una línea marginal negra muy estrecha, intermitente o incluso ausente. Se discute la existencia de grupos infragenéricos de especies dentro de Moema, la distribución geográfica y aspectos taxonómicos de las especies presentes en el drenaje de los Ríos Mamoré e Iténez/Guaporé, y la observación de agresión intraespecífica entre machos y estilo de vida anfibio en la nueva especie. Palabras clave: Cuenca amazónica de Bolivia; Cuerpos de agua temporales; Nueva especie; Rivúlidos; Taxonomía | ||||||
| 3:05p | [Botany • 2024] Cyrtandra samarensis (Gesneriaceae) • A New Species from the limestone forests of Samar Island, Philippines
Abstract A species new to science of the megadiverse genus Cyrtandra (Gesneriaceae) and endemic to the limestone forest of Samar Island Natural Park, Philippines, is described. It is distinct in its hairy bracts at the base of the adaxial surface and its long pendulous umbelliform inflorescences that comprise either solitary flowers or branches carrying two clusters of 7–9 diminutive flowers. A conservation assessment following the Red List criteria of the IUCN Standards and Petitions Subcommittee is proposed, and a line drawing and photographs of the species are provided. Keywords: Karst landscape, megadiverse genus, taxonomy
Cyrtandra samarensis Tandang & M.D.Angeles, sp. nov. Cyrtandra samarensis is distinct from other known Cyrtandra species from the Philippines by a combination of its hairy bracts, long pendulous inflorescence, clustered and diminutive umbelliform inflorescence, and small, white, globose, fleshy berry. Morphologically, it is similar to Cyrtandra umbellifera Merr. but differs in its glabrous stem except for a brownish setose tip (vs glabrous), glabrous calyx (vs pubescent), densely hairy bracts with prominent tuft of hairs on ... M. D. delos Angeles, D. N. Tandang, H. Schneider. 2024. CYRTANDRA SAMARENSIS (GESNERIACEAE), A NEW SPECIES FROM THE LIMESTONE FORESTS OF SAMAR ISLAND, PHILIPPINES. Edinburgh Journal of Botany. 81; https://journals.rbge.org.uk/ejb/article/v | ||||||
| 3:12p | [Botany • 2024] Pleurothallis markgruinii (Orchidaceae: Pleurothallidinae) • A New Species from the Northwestern Ecuador
Abstract Pleurothallis markgruinii, a particularly tall species for the genus, is described as new to science and an illustration provided. The new species is most similar to Pleurothallis gargantua and shares with that species its large size, reaching 1 m tall, but differs in the much smaller flowers with a deeply concave dorsal sepal, narrower petals, and a synsepal with strongly revolute margins that form an elongated, triangular shape. Comprehensive field research has shown Pleurothallis markgruinii to have a restricted geographical range in the northwest Andes of Ecuador, and it is assessed as Critically Endangered. Keywords: Carchi, Dracula Reserve, New orchid species, Reserva youth land trust
Pleurothallis markgruinii Baquero & M.F. Monteros, sp. nov. This new species is most similar to Pleurothallis gargantua in the large size of the plants (up to 1 m tall) and the large flowers (among the largest in the genus, between 5.6 and 10 cm long) borne at the base of a large (up to 30 cm long) ovate leaf, but it differs from that species in its considerably smaller flowers, 6.1 cm (vs 10.5 cm long when ... Etymology. Named in memory of Mark Gruin, horticulturist, curator at Zoo America, and benefactor at the Rainforest Trust, who devoted the bulk of his life’s work to protecting nature and supporting budding conservationists. L. E. Baquero, M. F. Monteros, G. A. Iturralde, M. M. Jimenez and R. Dueñas. 2024. PLEUROTHALLIS MARKGRUINII, A NEW PLEUROTHALLIDINAE(ORCHIDACEAE) FROM NORTHWESTERN ECUADOR. Edinburgh Journal of Botany. 81; DOI: 10.24823/ejb.2024.2032 journals.RBGE.org.uk/EJB/article/view/2032 Pleurothallis markgruinii, una especie con plantas particularmente largas dentro del género se describe e ilustra aquí como nueva para la ciencia. La nueva especie es similar a Pleurothallis gargantua y comparte con esta las grandes plantas que alcanzan 1 m en longitud, pero se diferencia en las flores mucho más pequeñas con el sépalo dorsal muy cóncavo, pétalos más estrechos, y un sinsépalo con márgenes fuertemente revolutos que le dan una forma alargada y triangular. Investigación de campo exhaustiva muestra que Pleurothallis markgruinii tiene una distribución restringida, al noroeste de los Andes en Ecuador y es evaluada como en peligro crítico. | ||||||
| 3:13p | [Botany • 2024] Primulina serina (Gesneriaceae) • A New Species from northern Guangxi, China
A new species of Primulina Hance (Gesneriaceae), P. serina F.Wen & W.C.Chou from northern Guangxi, China, is described and illustrated. It is morphologically similar to P. versicolor F.Wen, B.Pan & B.M.Wang, but can be easily distinguished by its smaller bracts. In its natural habitat, this species exists only in two subpopulations, and they occupy an area of less than 40 m2 and, following IUCN guidelines, this new species is provisionally assessed as Critically Endangered (CR). Keywords. Lamiales, morphology, Primulina versicolor, taxonomy
Primulina serina F.Wen & W.C.Chou, sp. nov. The new species is most similar in leaf characteristics to Primulina versicolor F.Wen, B.Pan & B.M.Wang but differs by its lanceolate to narrowly ovate (vs broadly ovate or sub-rounded) bracts 3–3.5 × 1–1.2 mm (vs 50–55 × 44–50 mm). Etymology. Primulina serina is named after the canary (Serinus canaria) owing to its exquisite yellow flowers. The specific epithet “serina” is derived from the Latin word “citrinus”, meaning “lemon yellow”, reflecting the canary’s bright yellow plumage. Vernacular name. 金翅报春苣苔 (Jīn Chì Bào Chūn Jù Tái). G.D. Mai, G.D., Chou, W.C. and Wen, F. 2024. Primulina serina, A New Species of Gesneriaceae from northern Guangxi, China. Gardens' Bulletin Singapore. 76(2); 285 - 291. | ||||||
| 3:13p | [Botany • 2020] Alocasia yunqiana (Araceae) • A New Species from Tongbiguan Nature Reserve, Yunnan Province [Taxonomic Notes on the Alocasia-Colocasia Clade in China I]
Abstract A new Alocasia species, Alocasia yunqiana, is described and compared with its morphologically related taxa. The novelty is characterized by an oblong-naviculiform-shaped spathe-limb that is strongly hooded and slightly glaucous to glossy during its entire anthesis, a spadix with a sterile interstice and an appendix that are much shorter and thinner than the staminate zone, as well as the dimorphic synandroidia. Detailed information containing description, colored plates and illustration are provided herein. Keywords: Aroideae, Pistia clade, Colocasia-Alocasia clade, flora of China, plant taxonomy, Monocots  Alocasia yunqiana Z.X.Ma, Y.F.Li & J.T.Yin, sp. nov. 运气海芋  Zhengxu MA, Yifan LI, Baohui DAO, Wanliu YANG, Bing LIU and Jian-Tao YIN. 2020. Taxonomic Notes on the Alocasia-Colocasia Clade (Araceae) in China I: Alocasia yunqiana, A New Species from Tongbiguan Nature Reserve, Yunnan Province. Phytotaxa. 460(4); 277–284. DOI: doi.org/10.11646/phytotaxa.460.4.5 天南星科海芋属植物添新成员 |
| << Previous Day |
2024/12/24 [Calendar] |
Next Day >> |