On the Romanian endemic species of Salvia (Lamiaceae) and its natural hybrids: nomenclatural and taxonomic aspects

Phytotaxa ◽  
2020 ◽  
Vol 434 (3) ◽  
pp. 270-280
Author(s):  
VIKTOR O. NACHYCHKO ◽  
YEVHEN V. SOSNOVSKY
Keyword(s):  
Endemic Species ◽  
Parental Species ◽  
Natural Habitats ◽  
Diagnostic Features ◽  
Natural Hybrids ◽  
Southern Carpathians

Salvia transsylvanica is regarded to be endemic to the Transylvanian Basin, Eastern and Southern Carpathians in Romania. In natural habitats, it easily intercrosses with other sage species, such as S. nemorosa, S. nutans, and S. pratensis, with the hybrids described as nothospecies S. ×hybrida, S. ×telekiana, and S. ×bichigeanii, respectively. One specimen from GOET is designated here as a lectotype of S. pratensis var. transsylvanica, the basionym of S. transsylvanica. In addition, three specimens from LW, BP, and BUCA are designated as the lectotypes for hybrid names. Main diagnostic features of S. transsylvanica, its hybrids, and respective second parental species are compared and discussed.

Pollen Transfer by Natural Hybrids and Parental Species in an Ipomopsis Hybrid Zone

Evolution ◽  
1998 ◽  
Vol 52 (6) ◽  
pp. 1602 ◽  
Author(s):  
Diane R. Campbell ◽  
Nickolas M. Waser ◽  
Paul G. Wolf
Keyword(s):  
Hybrid Zone ◽  
Parental Species ◽  
Pollen Transfer ◽  
Natural Hybrids

The larva of Hydropsyche perseus Malicky 2001, endemic to Kerkyra (Corfu) Island, including a key for the known Hydropsyche larvae of the Greek islands

Zootaxa ◽  
2018 ◽  
Vol 4504 (2) ◽  
pp. 296
Author(s):  
IOANNIS KARAOUZAS ◽  
YIANNIS KAPAKOS
Keyword(s):  
Endemic Species ◽  
Diagnostic Features ◽  
First Time

The larva of Hydropsyche perseus Malicky 2001, endemic species of Kerkyra Island (Corfu), Greece, is described for the first time. The diagnostic features of the species are described and illustrated, and some information regarding its ecology is included. In addition, a tabular key for larvae of the known Hydropsyche species of the Greek Islands is provided. 

The use of flavonoid glycosides for the identification of elm hybrids

1993 ◽  
Vol 23 (4) ◽  
pp. 611-616 ◽  
Author(s):  
Daniela Heimler ◽  
Andrea Pieroni ◽  
Lorenzo Mittempergher ◽  
Pietro Buzzini
Keyword(s):  
High Performance ◽  
Parental Species ◽  
Flavonoid Glycoside ◽  
Flavonoid Glycosides ◽  
Natural Hybrids ◽  
Probable Presence ◽  
Multivariate Discriminant ◽  
Number Of Individuals ◽  
Layer Chromatography ◽  
Putative Hybrids

The utilization of elm leaf flavonoids as biochemical markers for the identification of artificial and natural hybrids of elm species is discussed. Two to 11 individuals from controlled crosses of Ulmuscarpinifolia Gled., Ulmuspumila L., Ulmusparvifolia Jacq., and Ulmusjaponica (R.) Sarg. were examined. Five to seven individuals from each parental species, and a number of putative hybrids between U. carpinifolia and U. pumila that naturally occur in central and northern Italy, were also examined. Quantitative data on leaf flavonoid glycosides were obtained by means of high-performance thin layer chromatography and examined by multivariate discriminant analysis. The results show that it is possible to identify the hybrid obtained between these species even if the parents are unknown, provided a number of individuals of the parental species are examined; therefore, it is also possible to certify putative hybrids. The higher variability of the flavonoid glycoside data of U. carpinifolia and U. pumila and the probable presence of F2 generation individuals make the certification of natural hybrids between these two species in some cases difficult or even impossible.

scholarly journals Floral scent in natural hybrids of Ipomopsis (Polemoniaceae) and their parental species

2013 ◽  
Vol 113 (3) ◽  
pp. 533-544 ◽  
Author(s):  
Mascha Bischoff ◽  
Andreas Jürgens ◽  
Diane R. Campbell
Keyword(s):  
Parental Species ◽  
Floral Scent ◽  
Natural Hybrids

scholarly journals Quantitative Anatomical Characteristics of the Leaf Blades of the Several Species of Crataegus L.

2021 ◽  
Vol 10 (4) ◽  
pp. 138-146
Author(s):  
V. A. Sagaradze ◽  
E. Yu. Babaeva ◽  
E. I. Kalenikova ◽  
N. A. Trusov ◽  
E. V. Peshchanskaya
Keyword(s):  
Russian Federation ◽  
Phenotypic Diversity ◽  
Glandular Trichomes ◽  
Raw Material ◽  
Medical Utilization ◽  
Natural Habitats ◽  
Diagnostic Features ◽  
Stomatal Apparatus ◽  
The Russian Federation ◽  
Characteristic Features

Introduction. The Crataegus L. (Hawthorn) is a common herb in numerous Pharmacopoeias. The State Pharmacopoeia of the Russian Federation provides hawthorn fruits and flowers for medical utilization. With that, the literature data confirms the medical utility of hawthorn leaves since the “leaves” and the “flowers with leaves” have pharmacopoeial status worldwide. Therefore, those are considered as prospective forms of Crataegus raw material for Russian pharmaceutical production. However, most species remain poorly pharmacognostically investigated regarding the quantitative microscopic characteristics (the sizes of stomatal apparatus (SA) and epidermal leaf blade (LB) trichomes), which could be substantial for establishing the authenticity of the raw material.Aim. Examine epidermal anatomy of Crataegus spp. Leaf blades (LBs) and perform a comparative study of several quantitative diagnostic features of LBs of hawthorn plants from the sect. Sanguineae and the sect. Crataegus, growing in diverse regions of the Russian Federation.Materials and methods. Samples of hawthorn leaves (C. sanguinea, C. maximowiczii, C. dahurica, C. rhipidophylla, C. monogyna and C. pallasii) were collected in natural habitats in Western Siberia (Kemerovo) and in arboretums of Botanical Gardens (Moscow, Stavropol). Measurements of anatomical structures were carried out using a light microscope accompanied by an ocular micrometre.Results and discussion. The LB surface phenotypic diversity within hawthorn species and sections was studied. The LBs were described in terms of meterages (longitude and width) of SA, meterages and shape of sedentary multicellular leaf teeth glands. The peculiarities of pubescence and the sizes of simple unicellular non-glandular trichomes were also observed.Conclusion. The results of quantitative anatomical examination provided the characteristic features determining these elements at the species and section levels. Thus, it may facilitate authentication and quality control of whole or ground Crataegus medicinal raw material.

A preliminary revision of Chusquea sect. Swallenochloa (Bambuseae, Bambusoideae, Poaceae) in Peru including the description of two new species and the resurrection of two other species

Phytotaxa ◽  
2019 ◽  
Vol 418 (2) ◽  
pp. 171-194 ◽  
Author(s):  
BELÉN FADRIQUE ◽  
EVANDRO MACHADO PIANISSOLA ◽  
KENNETH J. FEELEY ◽  
LYNN G. CLARK
Keyword(s):  
Endemic Species ◽  
Field Work ◽  
High Elevation ◽  
Second Step ◽  
Single Population ◽  
Diagnostic Features ◽  
Additional Species ◽  
Photographic Images ◽  
Incertae Sedis ◽  
Previously Treated

Bamboos of the Neotropical Chusquea subg. Swallenochloa are characteristic of high elevation grasslands from Mexico to Argentina and in Brazil, with a few species occurring in montane or other forests. The central Andean diversity of subg. Swallenochloa remains poorly studied, but recent field work revealed the existence of additional species diversity within sect. Swallenochloa of subg. Swallenochloa in Peru. We here present a preliminary revision of the eight named species of sect. Swallenochloa for Peru, including the description of two new endemic species, C. gamarrae and C. intipaqariy, and the resurrection of two other endemic species, C. simplicissima and C. weberbaueri, which were previously treated as synonyms of C. spicata, apparently another Peruvian endemic. This revision includes detailed descriptions (or re-descriptions) of the eight species of sect. Swallenochloa confirmed for Peru, morphological keys for their identification (vegetative vs. reproductive and vegetative), photographic images showing diagnostic features for all eight species, comparative tables and a distribution map. Previous identifications of some specimens are also discussed and, in some cases, modified, and a list of Incertae Sedis specimens from Peru with comments is included. A second-step lectotypification of the name C. weberbaueri is also proposed. The second collection of C. simplicissima, made 111 years after the type collection, is newly documented in this study. Two other species, C. smithii and C. weberbaueri, remain known only from their type collections, and the two newly described species are known from only a single population each, highlighting the need for additional field work and herbarium study of this ecologically important group.

NATURAL HYBRIDS BETWEEN Manihot reptans Pax AND M. alutacea Rogers & Appan

1984 ◽  
Vol 64 (2) ◽  
pp. 423-425 ◽  
Author(s):  
NAGIB M. A. NASSAR
Keyword(s):  
Parental Species ◽  
Sympatric Distribution ◽  
Natural Hybrids ◽  
Disturbed Habitats

Natural hybrids between M. reptans and M. alutacea in Goias state, Brazil are described. Hybridization occurred in disturbed habitats where there is a sympatric distribution of the parental species. There is evidence for progressive introgression of germplasm into M. reptans.Key words: Wild cassava, Manihot reptans, natural hybrids, introgression, M. alutacea

scholarly journals Identification and characterization of hybrids of Acipenser ruthenus and Acipenser baerii (Actinopterygii, Acipenseriformes) from the Irtysh River

2021 ◽  
Vol 7 ◽  
pp. 261-282
Author(s):  
Elizaveta Liberman ◽  
Andrey Chemagin ◽  
Gleb Volosnikov ◽  
Oxana Zhigileva
Keyword(s):  
Parental Species ◽  
Gill Arch ◽  
Genetic Identification ◽  
Natural Habitats ◽  
Data Set ◽  
Genetic Characteristics ◽  
Irtysh Basin ◽  
Irtysh River ◽  
The Irtysh River ◽  
Putative Hybrids

Two sturgeon species, Acipenser ruthenus (Linnaeus, 1758) and Acipenser baerii (Brandt, 1869), inhabit the Irtysh basin. In 2018, we received some “atypical” specimens of sturgeon, which were similar to A. ruthenus but had a number of pronounced external differences. The hybrids A. ruthenus × A. baerii, named “oster”, can sometimes be caught in natural habitats in the Ob and the Yenisei rivers. Despite the development of methods for the genetic identification of sturgeons, the molecular genetic characteristics of the hybrids of A. baerii and A. ruthenus have not been carried out. The purpose of this study is to develop a complex of morphological and genetic characters to identify the hybrid of A. ruthenus and A. baerii from the Irtysh River. We used a complex of morphological and genetic methods to compare the putative hybrids with parental species The putative hybrids were similar to A. ruthenus in the number of dorsal scutes, the number of rays in the dorsal and anal fins, the structure of stamens on the first gill arch, and the presence of fringe on the tendrils. The hybrids were similar to A. baerii in size and weight values, the structure of dorsal scutes, the number of lateral and ventral scutes, and the number of gill rakers on the first gill arch. Genotyping of putative hybrids by using the Inter Simple Sequence Repeat (ISSR) markers revealed the presence of sites characteristic of both parental species. The fragment of the control region of mitochondrial DNA in the hybrids matched to that of A. baerii that allowed us to identify females of A. baerii as maternal individuals of the hybrids. Possible causes and factors promoting interspecific hybridization of A. ruthenus and A. baerii were studied. This is the first described fact of the appearance of sturgeon hybrids in the Ob-Irtysh basin. It is necessary to continue monitoring studies to identify the number of these hybrids in the ecological system of the Irtysh River. The data set of morphological characters and genetic methods can be used to identify the hybrids of A. ruthenus and A. baerii.

scholarly journals Gene flow between introduced and native Eucalyptus species: exotic hybrids are establishing in the wild

2003 ◽  
Vol 51 (4) ◽  
pp. 429 ◽  
Author(s):  
R. C. Barbour ◽  
B. M. Potts ◽  
R. E. Vaillancourt
Keyword(s):  
Gene Flow ◽  
Native Species ◽  
Parental Species ◽  
F1 Hybrids ◽  
Eucalyptus Species ◽  
Eucalyptus Nitens ◽  
Natural Hybrids ◽  
In The Wild ◽  
Long Term Impact

F1 hybrids between exotic Eucalyptus nitens plantations and native E. ovata have previously been reported among seedlings grown from open-pollinated seed collected from E. ovata, on the island of Tasmania. Such exotic hybrid seedlings have now been found in the wild adjacent to plantations at three locations. The proportion of exotic hybrids in open-pollinated seed collected from nearby mature E. ovata was 5.5%. This level compares with only 0.4% for natural hybrids between native species at these sites (E. ovata, E. viminalis and E.�rodwayi). Detection of hybrids was initially based on their deviant morphology, which was generally intermediate between parental species. This subjective classification was then successfully verified by morphometric and allozyme analyses. Pure E. nitens seedlings (wildlings) were restricted to within 30 m of these plantations, whereas established hybrids were found up to 310 m from the plantations. This pattern of establishment reflects dispersal of exotic seed and pollen respectively. It is likely that the recent expansion of the eucalypt plantation estate in Australia will cause an increase in the frequency of exotic hybrids. However, the long-term impact of such hybridisation is yet to be assessed.

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