Two new species of Pterostylis (Orchidaceae; Orchidoideae) from the Sunset Country, Victoria, Australia

Phytotaxa ◽  
2021 ◽  
Vol 500 (3) ◽  
pp. 153-165
Author(s):  
NOUSHKA REITER ◽  
WILLIAM KOSKY ◽  
MARK CLEMENTS

In northwestern Victoria, Australia, the Pterostylis (Orchidaceae) section Oligochaetochilus ‘rufa group’ comprises several little studied and poorly collected taxa. We surveyed populations of the rufa group in the Sunset Country, collecting information on the habitat and vegetation community. Fourteen sites were surveyed for plants with affinities to P. biseta and P. exelsa. We measured 23 morphological traits for each of 31 field-collected and seven herbarium specimens from this area. Multivariate analyses were undertaken, with cluster analysis and ordination performed on range-standardised data. Three distinct groups were present in both an ordination and dendrogram, with key diagnostic characters relating to the labellum. These groups were compared against other morphologically similar species of Pterostylis. Our analyses confirmed one of these groups as P. biseta, which is widespread in northwestern Victoria, and two as previously undescribed, putatively rare taxa, described here.

Zootaxa ◽  
2017 ◽  
Vol 4350 (3) ◽  
pp. 500
Author(s):  
JULISSA M. CHURATA-SALCEDO ◽  
LUCIA M. ALMEIDA ◽  
GUILLERMO GONZÁLEZ ◽  
ROBERT D. GORDON

The subgenus Sidonis Mulsant, 1850 is elevated to generic status and two new species from Brazil are described and illustrated: Sidonis bira sp. nov. and Sidonis biguttata sp. nov. New geographic distribution records are provided. In addition, lectotypes of Sidonis consanguinea (Mulsant, 1850) and S. guttata (Sicard, 1912) are designated. Illustrations of diagnostic characters from five of six species of the genus, comments on the differences from similar species and a key to all recognized taxa are included.  


Zootaxa ◽  
2018 ◽  
Vol 4526 (4) ◽  
pp. 589
Author(s):  
YONGYING RUAN ◽  
ROBIN KUNDRATA ◽  
ELISKA SORMOVA ◽  
LU QIU ◽  
MENGNA ZHANG ◽  
...  

Dima guizhouensis Ruan, Kundrata & Qiu sp. nov. and Dima xiaolongi Ruan, Kundrata & Qiu sp. nov. are described from Guizhou and Hunan Provinces in China, respectively. Both species are easily distinguishable from most of their congeners by having a strongly convex pronotum and relatively long elytra with carinate interstria VI. The only superficially similar species is D. tianmuensis Qiu & Kundrata in Qiu et al. (2018) from Zhejiang Province. Habitus and main diagnostic characters are figured for both new species, and their systematic placement is discussed. The discovery of these species brings the total number of Dima species in China to 13. 


PhytoKeys ◽  
2019 ◽  
Vol 130 ◽  
pp. 151-160
Author(s):  
Lei Cai ◽  
De-Tuan liu ◽  
Pin Zhang ◽  
Zhi-Ling Dao

Two new species of Gesneriaceae, Henckelia nanxiheensis Lei Cai & Z.L.Dao, sp. nov. and H. multinervia Lei Cai & Z.L.Dao, sp. nov. from southeastern Yunnan, China, are described with color photos. The diagnostic characters of the two new species, together with photographs, detailed descriptions, distribution and habitat, as well as comparisons with morphologically similar species, are also provided.


Author(s):  
Marcus Bevilaqua ◽  
Claudio Ruy Vasconcelos da Fonseca

Passalus Fabricius, 1792 is the largest genus of Passalidae and presents great diversity in South America, mainly in the Amazon region. Currently this complex and heterogeneous genus is subdivided into three subgenera: P. (Pertinax) Kaup, 1869, P. (Mitrorhinus) Kaup, 1871, and P. (Passalus). Herein, two new species of Passalus from the western region of the Brazilian Amazon, a diverse but poorly studied area, are described and illustrated. The new species Passalus (Pertinax) deuterocerus sp. nov. and Passalus (Passalus) cleidecostae sp. nov. are compared with similar species occurring in nearby regions. Also, the diagnostic characters used to define the subgenera and sections of Passalus are summarized.


Phytotaxa ◽  
2019 ◽  
Vol 425 (5) ◽  
pp. 269-278
Author(s):  
MANIT KIDYOO ◽  
AROONRAT KIDYOO

Ceropegia chuakulii is a new species from eastern Thailand. Illustrations, photographs and comparison of diagnostic characters to the morphologically similar species, C. acicularis Kidyoo are provided. These two species are characterized by erect stems, needle-like leaves, one–flowered sessile inflorescences and spathulate corolla lobes that are connate at tips. Ceropegia chuakulii is, however, clearly distinguished from C. acicularis by its ovoid to globose corolla tube, corolla lobes being as long as corolla tube, deeply bifid interstamial corona lobes with triangular-lanceolate segments. In addition, the analyses of quantitative morphological traits of flowers also strongly supported the distinctiveness of the new species.


2021 ◽  
Vol 154 (3) ◽  
pp. 470-482
Author(s):  
Fabrício Moreira Ferreira ◽  
Cassiano A. Dorneles Welker ◽  
Reyjane P. Oliveira

Background and aims – We here describe two new species of Eremitis from Bahia, Brazil, and compare them with morphologically similar species. We also provide illustrations, photos, a distribution map, and notes on habitat and conservation status of the new species.Material and methods – This study was based on fieldwork, analysis of herbarium specimens, and literature review. Specimens collected were analyzed and photographed during fieldwork and observed in cultivation in a greenhouse. The conservation assessment is based on field observations and spatial analyses, following the IUCN guidelines and criteria.Results – Eremitis clarkiae sp. nov. occurs in southern Bahia and has been collected only twice, in the municipality of Floresta Azul. The new species is similar to E. jardimii and E. robusta, both also endemic to Bahia, but can be distinguished by several vegetative and reproductive structures longer than those observed in these species, such as leafy culms, ligules, decumbent culm inflorescences, and pedicels of the staminate spikelets of the staminate whorls. Eremitis vinacea sp. nov. was collected in three localities in southern Bahia, but only the type population was found during recent field trips, in the municipality of Camacã. It is similar to E. afimbriata, a species endemic to Espírito Santo state, being differentiated by its leaf sheaths with persistent fimbriae (vs absent), leaf blades with green adaxial surface (vs bluish green with a blue iridescence), and a single inflorescence on decumbent culms (vs multiple). Both new species are endemic to the Bahian Coastal Forests subregion and should be considered Critically Endangered (CR), according to the IUCN guidelines and criteria.


2020 ◽  
Vol 45 (1) ◽  
pp. 75-84
Author(s):  
Llorenç Sáez ◽  
Javier López-Alvarado ◽  
Pere Fraga ◽  
Regina Berjano ◽  
M. Ángeles Ortiz ◽  
...  

Abstract—Two new diploid species, Aira minoricensis and Aira hercynica, are described and illustrated, along with chromosome counts, risk assessment, distribution and habitat, phenology, and comparisons with morphologically similar species. A comparative table and a key for the species of Aira for the Iberian Peninsula and the Balearic Islands are provided to assist in the identification of these overlooked species, and their relationships to other taxa are discussed.


Phytotaxa ◽  
2018 ◽  
Vol 334 (3) ◽  
pp. 233 ◽  
Author(s):  
BINCE MANI ◽  
SINJUMOL THOMAS ◽  
S. JOHN BRITTO

Impatiens saulierea and I. josephia, two new species, are described from the Western Ghats, India. The former is collected from Kakkayam, Kozhikode and the latter from Idukki, Kerala. A detailed description of both taxa along with diagnostic characters between allied species, conservation status, pollen morphology and colour photographs are provided.


Phytotaxa ◽  
2018 ◽  
Vol 346 (2) ◽  
pp. 157
Author(s):  
C. BIJEESH ◽  
A. MANOJ KUMAR ◽  
K.B. VRINDA ◽  
C.K. PRADEEP

Two unusual species of Craterellus have been collected numerous times from the evergreen tropical forests in Kerala State, India. The species Craterellus albostrigosus and Craterellus inusitatus are described as new based on morphological and phylogenetic analyses of nrLSU-rDNA gene region. Complete morphological descriptions, photographs and comparisons with similar species are provided as well as a key to the known species of Craterellus from India.


Phytotaxa ◽  
2017 ◽  
Vol 295 (1) ◽  
pp. 49
Author(s):  
ALUWANI A. TSHIILA ◽  
SAMSON B.M. CHIMPHANGO ◽  
JAN-ADRIAAN VILJOEN ◽  
A. MUTHAMA MUASYA

Unclear boundaries between species hinder identification in the field and in herbaria, especially in species groups that can only be distinguished on the basis of subtle morphological and ecological features. One such taxon is Ficinia indica, widespread in the Greater Cape Floristic Region, growing on deep sandy soils between sea level and 1000 m elevation. Within its range, several phylogenetically related and morphologically similar species co-occur or occupy distinct habitats. Studies in herbaria show species in the Ficinia indica complex to be largely misidentified based on the use of qualitative information. Here, we investigate whether the six taxa recognized, based on one or a few characters, are supported as distinct species based on multivariate analysis of macro-morphological data. Two of the taxa were mostly separated whereas the other four taxa overlapped in multivariate space, but all the taxa could be distinguished using a single or a combination of morphological and ecological characters. We uphold the four previously recognized taxa (Ficinia argyropus, F. elatior, F. indica, F. laevis) as species, describe two new species (F. arnoldii and F. montana), and provide a dichotomous key for their identification.


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