Taxonomic re-evaluation of some Gelidocalamus (Poaceae: Bambusoideae) taxa from Southeast China

Phytotaxa ◽  
2017 ◽  
Vol 299 (1) ◽  
pp. 111
Author(s):  
YUGUANG LIU ◽  
WEIJIAN LI ◽  
MING TANG ◽  
GUANGYAO YANG ◽  
WENGEN ZHANG

In the present study, we employed a classical taxonomic analysis of micromorphological characters of the leaf epidermis to reassess the taxonomy of four Gelidocalamus taxa, a genus of woody bamboos endemic to China. We propose that G. subsolidus is distinct from G. tessellatus, and G. albopubescens should be placed in synonymy under G. subsolidus. A formal taxonomic treatment is presented, including description, comments, illustrations, a distribution map, and SEM images of the abaxial leaf epidermis.

Phytotaxa ◽  
2018 ◽  
Vol 356 (3) ◽  
pp. 215 ◽  
Author(s):  
TANG-JIE NIE ◽  
WEI-JIAN LI ◽  
XUE-NAN JI ◽  
YU-GUANG LIU ◽  
ZU-YAO LI ◽  
...  

In the present study, a classical taxonomic analysis of micromorphological characters of the leaf epidermis was employed to reassess the taxonomy of Gelidocalamus stellatus and its infraspecific taxa from southern China. We propose that G. monophyllus is distinct from G. stellatus, and G. wugongshanensis should be treated as a variety under G. stellatus. The variety, i.e. G. stellatus var. mangshanensis, collected from the Mangshan of Hunan Province in China, is re-described and illustrated. A formal taxonomic treatment is presented, including descriptions, comments, illustrations, distribution maps, and SEM images of the abaxial leaf epidermis.


2020 ◽  
Vol 45 (4) ◽  
pp. 826-832
Author(s):  
Lamarck Rocha ◽  
Maria Mercedes Arbo

Abstract—Turnera macrosperma, a new species from the Brazilian Cerrado, is described and illustrated. The new species belongs to the series Turnera and can be characterized by the white petals with dark blue/violet basal spot and large seeds with papillose aril. SEM images, distribution map, and comments on taxonomy and morphology are presented.


2017 ◽  
Vol 7 (3) ◽  
pp. 197-207 ◽  
Author(s):  
Alin Liana ◽  
Purnomo Purnomo ◽  
Issirep Sumardi ◽  
Budi Daryono

Author(s):  
Nurcan Yiğit ◽  
Mehmet Çetin ◽  
Hakan Şevik

In this study, it was aimed to identify the change in some micromorphological characters in Prunus laurocerasus L. leaves obtained from 6 different provinces located in the areas where different climate types are dominant, depending on their habitat. In this regard, the leaf samples were collected from Prunus laurocerasus L. individuals in the provinces of Rize, Samsun located in the areas including the European-Siberian, Irano-Turanian and Mediterranean phytogeographical regions. The leaf epidermis images were obtained with the help of SEM on the collected leaf samples, and the required measurement procedures were performed on these images with the help of “Image J” measurement program. By measurements performed on the leaf epidermis surface, Stoma Length (µm), Stoma Width (µm), Pore length (µm), Pore width (µm) and Stoma Density (in an area of 1 mm2) measured such as micromorphological characters. The data obtained were subjected to the Variance analysis and Duncan’s test, and the change in these characters depending on their habitat was statistically evaluated. At the end of the study, it was determined that there were statistically significant differences at the confidence level of minimum 95% among the conditions of the habitat in terms of all characters except for the stomatal width.


Rodriguésia ◽  
2021 ◽  
Vol 72 ◽  
Author(s):  
Andreza Stephanie de Souza Pereira ◽  
Camilo Veríssimo de Oliveira Barbosa ◽  
Edilson Freitas da Silva ◽  
José Tasso Felix Guimarães ◽  
Joana Patrícia Pantoja Serrão Filgueira ◽  
...  

Abstract This study presents a taxonomic treatment of Anacardium for the state of Pará (Brazil), based on the analysis of specimens from herbaria (CEN, ESA, IAN, INPA, MBM, MFS, MG, RB, UB, and UEC), material collected in the field, and images of specimens from virtual databases. Species identifications were confirmed by consultation of protologues and types or images of types. A morphoanatomical analysis of the leaves of Anacardium was conducted to support taxonomic characterizations. Descriptions, plates, a distribution map, and an identification key for the species of Anacardium occurring in Pará (A. amapaense, A. giganteum, A. humile, A. microsepalum, A. occidentale, and A. spruceanum) are provided.


Zootaxa ◽  
2012 ◽  
Vol 3265 (1) ◽  
pp. 1
Author(s):  
THOMAS R. PRENTICE ◽  
RICHARD A. REDAK

We erect a new genus, Esophyllas n. gen., to place two litter dwelling species of erigonine spiders from southern Califor-nia the type species, E. vetteri n. sp. and E. synankylis n. sp. A detailed genus diagnosis is presented as well as compre-hensive morphological descriptions, artist illustrations, and SEM images for each species. We also provide data on habitataffinities, phenology, and distribution, including a distribution map figure. For tentative phylogenetic placement both spe-cies were scored for the characters in the data matrix of Miller & Hormiga (2004) and subsequently entered into the ex-panded matrix of Frick et al. (2010). The analysis places Esophyllas n. gen. within the “distal erigonines” as sister toScirites Bishop and Crosby in a polytomy with Tapinocyba Simon 1884 and Abacoproeces (L. Koch). Data from morpho-logical comparisons with taxa not included in the expanded matrix do not strongly support these relationships but insteadsuggest that Esophyllas n. gen. is more closely related to Phlattothrata parva (Kulczyn’ski 1926). However, in light ofthe extent of character divergence from the above genera we contend that the true sister group to Esophyllas n. gen. either has not yet been described or is among the vast number of phylogenetically untested taxa.


2016 ◽  
Vol 16 ◽  
Author(s):  
Karoline Coutinho Santana ◽  
Reyjane Patricia de Oliveira ◽  
Ana Maria Giulietti

The taxonomic treatment of the Hypoxidaceae from Bahia, Brazil, is presented here. Hypoxis decumbens is the only species found in the state. Descriptions, illustrations, comments and a geographic distribution map of the species in Bahia are presented.


PhytoKeys ◽  
2021 ◽  
Vol 185 ◽  
pp. 65-86
Author(s):  
Nikolay A. Vislobokov ◽  
Long-Fei Fu ◽  
Yi-Gang Wei ◽  
Maxim S. Nuraliev

Micromorphological characters of leaf epidermis were investigated in 69 species of Aspidistra using scanning electron microscopy. Sculpture of epidermis varies from smooth to verrucose and rugose in the genus. The abaxial epidermis of some species bears papillae, whereas the adaxial surface uniformly lacks the papillae. Sculpture type of epidermis and density of papillae are generally found to be stable characters at a species level. The infraspecific variation of epidermis sculpture, where present, ranges from smooth to verrucose or from verrucose to rugose. Micromorphological characters of leaf epidermis are shown to have potential taxonomic significance in Aspidistra; in combination with the type of shoot structure, they allow to subdivide the species into 13 groups. The groups are largely incongruent with floral morphological traits. An identification key to the studied species of Aspidistra based on vegetative characters (gross leaf and shoot morphology and characters of leaf epidermis) is presented.


2016 ◽  
Vol 16 ◽  
Author(s):  
Lara Pugliesi De Matos ◽  
Ana Maria Giulietti ◽  
Reyjane Patrícia De Oliveira

The taxonomic treatment of Chloranthaceae from the Bahia state, Brazil, is presented here. Hedyosmum brasiliense is the only species of the family in Bahia. Descriptions, illustrations, notes and a distribution map of the species in the state are presented.


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