Allopolyploid speciation in Siberian Dactylorhiza (Orchidaceae, Orchidoideae)

Phytotaxa ◽  
2016 ◽  
Vol 258 (2) ◽  
pp. 101 ◽  
Author(s):  
PETR G. EFIMOV ◽  
EVGENIJ G. PHILIPPOV ◽  
DENNIS A. KRIVENKO

Morphological and allozyme analyses of Siberian dactylorchids have revealed the presence of a new, previously undescribed allopolyploid that is described here as species new to science. The genetic constitution as revealed by allozyme analysis of this species confirms that its parents are the diploid Siberian D. fuchsii and D. incarnata, and it is 2n=80, representing the first such count from the Asiatic Russia. In most literature surveys of Siberia, the new species has been identified as D. baltica, which is different in the allele composition of the pgi locus. Morphologically, both allotetraploids are similar; D. sibirica is distinguishable due to the absence of spots on the leaves and a narrower lip with narrower lateral lobes. A brief summary of Dactylorhiza allopolyploids from Siberia (Russia) is presented.

Zootaxa ◽  
2004 ◽  
Vol 523 (1) ◽  
pp. 1 ◽  
Author(s):  
SERGIO IBÁÑEZ-BERNAL

Only three species of Trichomyia Haliday have been recorded in Mexico. Trichomyia cirrata Coquillett, 1902, is recognized by its female characteristics, T. fairchildi Vargas and D az-N jera, 1953, was described based only on the wing and must be considered as species inquirenda, and T. maldonadoi (Vargas, 1953), which was described based on one female specimen. Specimens of Trichomyia collected in the states of Campeche, Yucatan, and Oaxaca, Mexico, allowed this female to be associated with the male of T. brevitarsa (Rapp, 1945), thus providing a first report of this species in Mexico. Consequently, T. maldonadoi is proposed as a synonym of T. brevitarsa. Additionally, a new species of Trichomyia from the state of Veracruz, Mexico, is described and illustrated based on the male and female characteristics.


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.


Zootaxa ◽  
2021 ◽  
Vol 4950 (2) ◽  
pp. 398-400
Author(s):  
OKAN KÜLKÖYLÜOĞLU

Most recently, Coimbra et al. (2020) published an article in this journal (Zootaxa, 4729 (2): 177–194) questioning the taxonomic position of the genus Copytus Skogsberg, 1939 (Crustacea, Ostracoda) along with proposing it as the type genus of their new family (Copytidae Coimbra et al., 2020), and erecting two new species that were listed by previous authors as Copytus sp. 1 and Copytus sp. 2. The main diagnostic characteristics of their new proposed family (and the genus Copytus) are the hinge type and muscle scars on the carapace and/or valves (see lines 6–8 from the bottom, p. 179 in Coimbra et al. 2020). They also underlined that (p. 179) “...this study is based exclusively on the morphology of the animals’ hard parts”. While the authors considered another genus (Neocopytus) proposed by Külköylüoğlu, Colin & Kılıç (2007) of the family Neocytherididae as invalid, they interestingly transferred some species of Neocopytus to Copytus as species of their new family (Coimbra et al. 2020). Herein, my point with the comments listed below is to clarify that, when possible, both soft and hard parts should be considered in taxonomy, and such an integrated approach clearly indicates that Neocopytus is a valid and taxonomically useful genus. 


Zootaxa ◽  
2021 ◽  
Vol 4933 (4) ◽  
pp. 543-556
Author(s):  
PO-WEI CHEN ◽  
HUI-CONG XIE ◽  
XUE WU ◽  
CHU-ZE SHEN ◽  
ZHU-QING HE

There are 29 species or subspecies in genus Hexacentrus occurring in Asia, Africa and Australia. Because of its similar appearance, it is not easy to distinguish them by traditional methods. In this study, we collected samples and sequenced COI genes from wide range. By reconstructing the gene tree, we found one new species, H. formosanus Chen et He sp. nov., from Taiwan. The new species is similar to H. expansus or H. inflatissimus, but differs from the former in male Cu2 vein of left tegmina curved and slender, and spectrum of male left tegmina slender and subsquare; differs from the later by body size smaller and female tegmina narrow and short. The type specimens are deposited in National Museum of Natural Science, Taichung, Taiwan (NMNS). H. japonicus hareyamai is treated as species level, H. hareyamai stat. nov. 


Zootaxa ◽  
2007 ◽  
Vol 1605 (1) ◽  
pp. 33-46 ◽  
Author(s):  
MARCELO R.S. MELO ◽  
H. J. WALKER ◽  
CYNTHIA KLEPADLO

Two new species of the deep-sea fish genus Pseudoscopelus are described, P. lavenbergi from the eastern Pacific, and P. bothrorrhinos from the western Pacific and Indian Oceans. A new diagnosis for Pseudoscopelus based on two synapomorphies is proposed: the dorsal margin of the orbit is formed by infraorbital 6; the last pore of the infraorbital canal is on the dorsal edge of the orbit, anterior to the middle of the pupil. Twelve species of the genus are considered valid, with P. microps confirmed as a junior synonym of P. altipinnis, and P. stellatus regarded as species inquerida.


Zootaxa ◽  
2008 ◽  
Vol 1961 (1) ◽  
pp. 37-57 ◽  
Author(s):  
FRÉDÉRIC BEAULIEU ◽  
ANDREA D. DÉCHÊNE ◽  
DAVID E. WALTER

The mite genus Antennoseius is composed of free-living species in soil and litter, as well as species that are phoretic on carabid beetles as adult females. Among approximately 60 described Antennoseius species, one North American species, A. janus, was found in laboratory cultures to have two female morphs: one granular, free-living morph, and one smooth, putatively phoretic morph. We here describe the adult females of A. perseus n. sp. and A. pyrophilus n. sp. collected from under the elytra of carabid beetles (Sericoda quadripunctata and S. bembidioides) associated with recently burned forests in Alberta, Canada. We also describe the female and male of a distinct, granular, non-phoretic morph of A. perseus, obtained from soil and by rearing the offspring of phoretic females. A key to the females of Antennoseius species having an ambulacrum on leg I (i.e. subgenus Vitzthumia) is provided.


Zootaxa ◽  
2017 ◽  
Vol 4268 (1) ◽  
pp. 1-33
Author(s):  
LEONARDO ESTEVES LOPES ◽  
MARCELO FERREIRA DE VASCONCELOS ◽  
LUIZ PEDREIRA GONZAGA

A new species of Campylopterus sabrewing is described from eastern Brazilian tropical dry forests occurring below 900 m asl. Its holotype (MZUSP 99024) is an adult female from Sítio Duboca (16°43’19’’S, 43°58’20’’W, elevation 840 m), municipality of Montes Claros, state of Minas Gerais. A taxonomic revision based on more than 1,000 museum specimens revealed that the new taxon, together with C. largipennis, C. diamantinensis and C. obscurus (with C. aequatorialis considered as a subjective junior synonym) should be ranked as species. We provide a key to permit easy identification of the four species. The new species is very similar to the parapatric C. diamantinensis of high altitude “campos rupestres” above 1,000 m asl, differing from it by its smaller size and longer light tail tips, as well as by sternum measurements. Given the several threats faced by the habitat to which the new species is endemic, we propose to consider it as Vulnerable under the IUCN criteria.


Phytotaxa ◽  
2015 ◽  
Vol 235 (1) ◽  
pp. 1 ◽  
Author(s):  
PACHARA MONGKOLSUK ◽  
SANYA MEESIM ◽  
VASUN POENGSUNGNOEN ◽  
KAWINNAT BUARUANG ◽  
FELIX SCHUMM ◽  
...  

A revision of 245 Heterodermia s.lat. collections from Thailand preserved in RAMK, herb. F. Schumm and herb. K. Kalb is presented. The 39 species found in this material are assigned to the genera Heterodermia Trevis. s.str. with a lower cortex and Pachysporaria-type ascospores (without sporoblastidia), Leucodermia Kalb, gen. nov., with foliose to subfruticose, linear-elongate, ribbon-like, dichotomously branched lobes, loosely attached to the substrate, without a lower cortex, apothecia often with pruinose discs and Polyblastidium-type ascospores (with sporoblastidia) and Polyblastidium Kalb, gen. nov. distinguished by a foliose thallus attached to the substrate, no lower cortex and mostly Polyblastidium-type ascospores. The remaining species are assigned to groups without a formal generic name, awaiting further results from molecular phylogenies. The Heterodermia comosa group contains species which are similar to Leucodermia, but differ in having a subfruticose or rosulate thallus with ascending, spathulate or paddle-shaped lobes and the Heterodermia obscurata group which contains species with a fluffy cottony woolly lower surface which is totally or at least partly impregnated by anthraquinones. Standardized descriptions are provided for all the better known Heterodermia species s.str. worldwide and all other species found in the material studied or reported for Thailand in the literature, as well as species which might be expected to occur in the country. The new species, Leucodermia borphyllidiata Kalb & Meesim, similar to L. boryi, but differing in having a phyllidiate thallus is described, and the new combinations, Leucodermia appalachensis (Kurok.) Kalb, L. arsenii (Kurok.) Kalb, L. boryi (Fée) Kalb, L. ciliatomarginata (Linder) Kalb, L. circinalis (Zahlbr.) Kalb, L. fertilis (Moberg) Kalb, L. leucomelos (L.) Kalb, L. lutescens (Kurok.) Kalb, L. vulgaris (Vain.) Kalb, Polyblastidium appendiculatum (Kurok.) Kalb, P. casarettianum (A. Massal.) Kalb, P. corallophorum (Taylor) Kalb, P. dendriticum (Pers.) Kalb, P. fragilissimum (Kurok.) Kalb, P. hypocaesium (Yasuda) Kalb, P. hypoleucum (Ach.) Kalb, P. japonicum (M. Satô) Kalb, P. magellanicum (Zahlbr.) Kalb, P. microphyllum (Kurok.) Kalb, P. neglectum (Lendemer, R.C. Harris & Tripp) Kalb, comb. nov. [Mycobank MB 813853; Basionym: Heterodermia neglecta Lendemer, R.C. Harris & Tripp, The Bryologist 110(3): 490 (2007)], P. propaguliferum (Vain.) Kalb, P. queenslandicum (Elix) Kalb, P. subneglectum (Elix) Kalb and P. violostriatum (Elix) Kalb, are made. Chaudhuria Zahlbr. is a synonym of Heterodermia s.str. and Chaudhuria indica Zahlbr. is an older synonym for Heterodermia verdonii Elix, but as the name Heterodermia indica (H. Magn.) D.D. Awasthi already exists for another species, the correct name for this taxon reverts to H. verdonii. Chemical analyses revealed that Heterodermia reagens (Kurok.) Elix must be placed into synonymy with Polyblastidium propaguliferum (Vain.) Kalb. Dichotomous keys for the identification of all species are provided. Characteristic TLC profiles for selected species are presented and Rf values for the most important terpenes and pigments are given for the first time in the standard solvents A, B' and C. Photographs showing the species as well as characteristic structures in the genera and groups are also provided. A new epitype for H. comosa from Réunion is designated.


Phytotaxa ◽  
2014 ◽  
Vol 161 (4) ◽  
pp. 270 ◽  
Author(s):  
Nikolay Vislobokov ◽  
Dmitry Sokoloff ◽  
Galina Degtjareva ◽  
Carmen Valiejo-Roman ◽  
Andrey Kuznetsov ◽  
...  

The genus Aspidistra (Asparagaceae) shows strong variation of flower groundplan. We add further evidence of this variation describing a new species, Aspidistra paucitepala from southern Vietnam that has flowers with 2-4 tepals, 2-4 stamens and a gynoecium with unilocular ovary. Bisexual flowers with three tepals and three stamens are extremely rare among monocots with biotic pollination. Compared with typical trimerous pentacyclic monocot flowers, they can be either interpreted as trimerous and tricyclic or as 1.5-merous (at least in perianth and androecium) and pentacyclic. Both interpretations imply floral features unusual for ‘higher’ Asparagales. Aspidistra paucitepala resembles recently described A. brachystyla from northern Vietnam in narrow funnel-shaped to nearly tubular perianth with very small lobes and short cylindrical pistil with stigma located below the level of anthers. As species of the taxonomically diverse genus Aspidistra are frequently observed in the field without reproductive structures and cannot be properly identified, a need for DNA barcoding approach is obvious. We present preliminary data showing that plastid psbA-trnH and nuclear 5S-NTS regions could be useful for DNA barcoding of Aspidistra.


1994 ◽  
Vol 8 (5) ◽  
pp. 1037
Author(s):  
MM Stevens

The morphology of Putoniessa Kirkaldy is reviewed and the genus revised. In total, 28 species are recognised: the type species, P. dignissima Kirkaldy, which is removed from synonymy; one new combination, P. dorsalis (Walker); eight previously described species, P. nigra (Walker), P. minima Evans, P. mackei Evans, P. draba Evans, P. taradalensis Evans, P. sordida Evans, P. nigrella Evans and P. turneri Evans; and 18 new species, P. rieki, P, brisbanensis, P. hickmani, P, neboissi, P. stanthorpensis, P. woodwardi, P. striata, P. evansi, P. variegata, P. tasmaniensis, P. grossi, P. serrata, P. northamensis, P. bifurcata, P. kiataensis, P. watsoni, P. fusca and P. aroka. P. nota Evans is excluded from the genus, and P. maculata Evans is synonymised under P. dorsalis (Walker). P. rivularis (Walker), originally described under Bythoscopus Germar, and P. galliensis Evans are considered as species of uncertain identity. The genus is shown to have a disjunct Bassian distribution with some eastern species extending northwards into the south-east of the Tomesian province. A consensus cladogram for Putoniessa, based on morphological characters, is presented. Large areas of the cladogram remain unresolved because of high levels of homoplasy among the limited number of reliable ingroup characters available. The cladogram does not support a purely vicariant biogeographic hypothesis. Theories that receive qualified support involve an eastern origin for the group followed by either an east-to-west dispersal or a vicariance event affecting a single taxon subsequent to initial speciation. A western origin for the group is strongly refuted.


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