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Wednesday, February 17th, 2021
| Time | Event | ||||||||
| 7:31a | [Botany • 2020] Involucrella lithophila (Rubiaceae: Spermacoceae) • A New Species from Guangxi, China
Abstract Involucrella lithophila from the limestone area of Guangxi, China, is described and illustrated here. It is most similar to Hedyotis kurzii and Involucrella chereevensis in having tetragonal stems, slender pedicels and loculicidally dehiscent capsules, but it differs from the former by its 3–5 (–7)-lobed stipules, heterostylous and white flowers and depressed seeds, and from the latter by its 2–4 secondary leaf veins and heterostylous flowers. The molecular phylogenetic analysis revealed that this new species was embedded in the Involucrella clade and closely related to I. chereevensis. It is evaluated as Least Concern according to IUCN Red List Categories and Criteria. Keywords: Hedyotis-Oldenlandia complex, palynology, Phylogenetic analysis, seed morphology, taxonomy, Eudicots 
Involucrella lithophila M.D.Yuan & R.J.Wang, sp. nov. Diagnosis:— Involucrella lithophila is similar to Hedyotis kurzii and Involucrella chereevensis and in their tetragonal stem, slender pedicels and cymose to paniculate inflorescences, but it differs from Hedyotis kurzii in its glabrous stipules, heterostylous and white flowers, turbinate or hemispherical capsule, and depressed seeds. It also distinguishes from Involucrella chereevensis in its smaller leaves, 2–4 secondary veins at each side, 3–5 (–7)-lobed stipules, and heterostylous flowers (Table 2). Etymology:— The specific epithet refers to the habitat of this species, which usually grows on the cliffs or gaps of limestone rocks. Ming-Deng Yuan and Rui-Jiang Wang. 2020. Involucrella lithophila (Rubiaceae: Spermacoceae): A New Species from Guangxi, China. Phytotaxa. 464(1); 59–68. DOI: 10.11646/phytotaxa.464.1.4 | ||||||||
| 7:59a | [Botany • 2020] Allium nerimaniae (Amaryllidaceae) • A New Species of Allium sect. Codonoprasum from Turkey
Abstract Allium nerimaniae from Van (East Anatolia) is described and illustrated. It is compared with the related Allium hirtovaginum according to distinct morphological characteristics. The seed morphology and leaf anatomy of A. nerimaniae and A. hirtovaginum are also presented and discussed. A key for identification of the hairy taxa of sect. Codonoprasum is presented. Keywords: Allium, new species, leaf anatomy, seed morphology, SEM, Monocots
Allium nerimaniae Koçyiğit & E. Kaya, sp. nov. Etymology:— The species is named in honor of the eminent Turkish botanist Prof. Dr. Neriman Özhatay, who is one of the experts for the genus Allium in the world and dedicated her life to better understand the Turkish Flora, on the occasion of her retirement from Istanbul University.
Mine Koçyiğit and Erdal Kaya. 2020. Allium nerimaniae (Amaryllidaceae), A New Species of A. Sect. Codonoprasum from Turkey. Phytotaxa. 435(1); 16–24. DOI: 10.11646/phytotaxa.435.1.2 Researchgate.net/publication/339693283_Allium_nerimaniae_a_new_species_of_from_Turkey | ||||||||
| 8:31a | [Botany • 2020] Spigelia elbakyanii (Loganiaceae) • A New Species from Oaxaca, Mexico
Abstract A new species of Spigelia (Loganiaceae) from Oaxaca, Mexico, is described here. This species is similar to S. humboldtiana and S. anthelmia, due to its size and white flowers, but the leaf texture, phyllotaxy below the inflorescence, and the style length are characters that allow to recognize it as a new species. With this addition, Mexico reaches a total of 23 species of the genus, of which more than 50% are endemic or microendemic. This places the country as the second area of high diversity after Brazil. A detailed description and illustration of the new species, a dichotomous key and a distribution map of Spigelia species in Oaxaca are included. Keywords: Eudicots, Diversity, endemism, restricted, Santa María Chimalapa.  C. Sofia Islas-Hernández and Leonardo O. Alvarado-Cárdenas. 2020. Spigelia elbakyanii, A New Species from Oaxaca, Mexico. Phytotaxa. 477(2); 277–283. DOI: 10.11646/phytotaxa.477.2.12 |
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