Centaurea stuessyi (Compositae: Cardueae), a new species from the eastern Iberian Peninsula

Phytotaxa ◽  
2013 ◽  
Vol 115 (2) ◽  
pp. 42 ◽  
Author(s):  
ITZIAR ARNELAS ◽  
JUAN ANTONIO DEVESA ◽  
EUSEBIO LÓPEZ

Centaurea stuessyi is described as new to science from the eastern Iberian Peninsula, Spain. The range of this new species coincides with the zone of overlap of the ranges of two related species, C. antennata (subsp. antennata) and C. linifolia. The chromosome number found in the new species (2n = 44) reinforces its differences from C. linifolia (2n = 22) and C. antennata (2n = 22). The new species is compared with related species, and a description is given of its ecological preferences.

Phytotaxa ◽  
2018 ◽  
Vol 374 (2) ◽  
pp. 147 ◽  
Author(s):  
JOEL M. P. CORDEIRO ◽  
FELIPE NOLLET ◽  
MARIA TERESA BURIL ◽  
MARK W. CHASE ◽  
LEONARDO P. FELIX

We describe a new species of Gomesa (Oncidiinae, Orchidaceae), Gomesa caatingana, with restricted distribution on caatinga inselbergs in Paraíba and Pernambuco States, Brazil. Morphological and karyological characters of the new species were compared with those of Gomesa flexuosa, which is morphologically the most closely related species. Differences in geographical distribution, habit, flower morphology and chromosome number support description of this new species.


Phytotaxa ◽  
2015 ◽  
Vol 202 (1) ◽  
pp. 26 ◽  
Author(s):  
Massoud Ranjbar ◽  
ZAHRA HAJMORADI

A new species, Trigonella bakhtiarica, from the Iranian province Chahar Mahal Va Bakhtiari is described, illustrated and compared to its most closely related species, T. aphanoneura. Trigonella bakhtiarica has a longer corolla and differs in the shape, surface and size of its pods, which are taxonomically informative characters in Trigonella sect. Ellipticae. Chromosome counts and meiosis assays show that both species are diploid, and that their euploid plants possess a somatic chromosome number of 2n = 2x = 16, which is consistent with the predicted base number of x = 8.


Phytotaxa ◽  
2017 ◽  
Vol 311 (2) ◽  
pp. 139
Author(s):  
MICHAELA JANDOVÁ ◽  
MARTINA OULEHLOVÁ ◽  
KATEŘINA VOJTĚCHOVÁ ◽  
MILOSLAV KITNER ◽  
MARTIN DUCHOSLAV

Allium pseudotelmatum, a new species of A. sect. Codonoprasum, is described from the southern Dalmatia (Croatia). It is a late-summer flowering species with pentaploid (2n = 40) chromosome complement, occurring in synanthropic habitats (Citrus orchards with nutrient rich and fresh moist soil). Karyology, leaf anatomy, morphology, ecology, molecular (ITS) and taxonomic relationships with related species are examined for the species. It shows morphological relationships with the northern Dalmatian species A. telmatum from which it well differentiates for many morphological characters including the presence of aerial bulbils within the inflorescence, phenology, chromosome number and ecology. Confusion of A. pseudotelmatum with some specimens of A. oleraceum due to the presence of bulbils within the inflorescence is discussed.


Phytotaxa ◽  
2019 ◽  
Vol 395 (4) ◽  
pp. 251 ◽  
Author(s):  
GLORIA MARTÍNEZ-SAGARRA ◽  
JUAN A. DEVESA

A new species, Festuca greuteri, from the southeast of the Iberian Peninsula (Spain) is described. The new taxon is recognised with two patterns of variation with the rank of subspecies: subsp. greuteri, widely distributed throughout the Baetic Mountains (Almería, Granada, Jaén and Málaga provinces, southern Spain), and subsp. camarolensis, located in the westernmost area of distribution, in the Sierra de Camarolos and Sierra del Jobo (Málaga province, southern Spain). This species belongs to Festuca sect. Festuca, and it had been overlooked or misidentified as F. segimonensis and F. longiauriculata, two species that are partially sympatric with it. Herbarium specimens and living plants were analysed, and noteworthy morphological and anatomical differences support their separation. A complete description is presented for the new species, and iconography and identification keys are provided together with information on leaf anatomy, ecology, phenology, and distribution. The new species is compared with the related species occurring in the southeastern Iberian Peninsula, and differential characters are discussed.


Phytotaxa ◽  
2019 ◽  
Vol 397 (1) ◽  
pp. 83
Author(s):  
ANA ZANNIN ◽  
PEDRO LAGE VIANA ◽  
CASSIANO A. DORNELES WELKER ◽  
TARCISO S. FILGUEIRAS

Andropogon saxicola, collected in rocky grasslands (campo rupestre) of the Brazilian state of Minas Gerais, is described, illustrated, and compared with putatively related species, such as A. campestris, A. carinatus, A. durifolius, and A. ingratus. According to the IUCN criteria, the new species is considered Endangered (EN). Comments on geographic distribution and ecological preferences of the new taxon are also provided.


2020 ◽  
Vol 29 (2) ◽  
pp. 278-283
Author(s):  
S.G. Ermilov

The oribatid mite subgenus Scheloribates (Topobates) Grandjean, 1958, is recorded from the Neotropical region for the first time. A new species of this subgenus is described from the leaf litter collected in Cayo Agua Island, Panama. Scheloribates (Topobates) panamaensis sp. nov. differs from its related species by the very large body size and presence of a strong ventrodistal process on the leg femora II–IV.


Phytotaxa ◽  
2016 ◽  
Vol 257 (3) ◽  
pp. 280 ◽  
Author(s):  
Hao Zhou ◽  
Si-rong Yi ◽  
Qi Gao ◽  
Jie Huang ◽  
Yu-jing Wei

Aspidistra revoluta (Asparagaceae) is described and illustrated as a new species from limestone areas in southern Chongqing Municipality, China. The new species can be distinguished from the other Aspidistra species by its unique umbrella-like pistil with large revolute stigma lobes that bent downwards and touch the base of the perigone. A detailed morphological comparison among A. revoluta, A. nanchuanensis and A. carnosa is provided. The pollen grains of A. revoluta are subspherical and inaperturate, with verrucous exine. The chromosome number is 2n = 38, and the karyotype is formulated as 2n = 22m + 6sm + 10st. The average length of chromosome complement is 4.50 μm, and the karyotype asymmetry indexes A1 and A2 are respectively 0.37±0.03 and 0.49±0.01.


Phytotaxa ◽  
2021 ◽  
Vol 502 (2) ◽  
pp. 149-159
Author(s):  
HASAN YILDIRIM ◽  
MEHTAP TEKŞEN

In this study, Fritillaria arsusiana (Liliaceae) is described and illustrated as a new species from Hatay province in southern Anatolia, Turkey. It is related to F. amana and F. hermonis by habitus features and broadly campanulate flowers, but differs mainly by its bulb shape and size, smaller leaf and flower features, and flower colour. It has also been morphologically compared with F. wendelboi, F. pinardii, and F. latakiensis. The detailed description, diagnostic characters, original photographs, geographical distribution, habitat and phenology, etymology, conservation status, and identification key of the new and the related species are presented in this study. IUCN conservation status of F. arsusiana is suggested as Critically Endangered (CR).


Phytotaxa ◽  
2021 ◽  
Vol 520 (2) ◽  
pp. 195-202
Author(s):  
GLEISON SOARES ◽  
BENOÎT LOEUILLE

Lepidaploa restingae, a new species from the restinga vegetation in Northeastern Brazil, is described and illustrated. This new species differs from morphologically related species by the branch indument, leaf morphology, number of phyllary series and corolla lobe indument. Taxonomic comments, a distribution map and a preliminary conservation status for the new species are provided.


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