Critical revision of type material of Stemonitales (Myxogastria) at the Natural History Museum London (BM)

Phytotaxa ◽  
2018 ◽  
Vol 344 (2) ◽  
pp. 149
Author(s):  
G. MORENO ◽  
A. CASTILLO ◽  
H. THÜS
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Natural History ◽  
Natural History Museum ◽  
Published Data ◽  
Type Specimens ◽  
History Museum ◽  
Critical Revision ◽  
First Time ◽  
Scanning Electron

For the first time both Light- and Scanning Electron Microscopy are aplied to re-assess diagnostic characters of type specimens for selected Stemonitales kept in the collections of the Natural History Museum London (BM). The results are used to revise published data and the type status is discussed for specimens of Amaurochaete comata G. Lister & Brândză, Comatricha longipila Nann.-Bremek., Comatricha lurida Lister, Comatricha pulchella (C. Bab.) Rostaf., Comatricha suksdorfii Ellis & Everh., Paradiacheopsis rigida (Brândză) Nann.-Bremek., Stemonaria irregularis (Rex) Nann.-Bremek., R. Sharma & Y. Yamam. and Stemonitopsis microspora (Lister) Nann.-Bremek at BM. A lectotype is proposed for Paradiacheopsis rigida (Brândză) Nann.-Bremek.

Critical revision of Stemonitis and Symphytocarpus (Myxomycetes) at the Natural History Museum London (BM)

Phytotaxa ◽  
2020 ◽  
Vol 458 (4) ◽  
pp. 257-280
Author(s):  
G. MORENO ◽  
A. CASTILLO ◽  
H. THÜS
Keyword(s):  
Natural History ◽  
Original Description ◽  
Natural History Museum ◽  
Published Data ◽  
Correct Identification ◽  
Original Material ◽  
Type Specimens ◽  
Sem Images ◽  
History Museum ◽  
Critical Revision

Light- and scanning electron microscopy are applied to re-assess diagnostic characters of type specimens and critical specimens of species in the genera Stemonitis and Symphytocarpus (Stemonitales, Myxomycetes) from the collections of the Natural History Museum London (BM). The results are used to discuss published data and the type status for specimens of Stemonitis ferruginea, S. flavogenita, S. herbatica, S. inconspicua, S. morganii, S. pallida, S. smithii, S. uvifera, S. virginiensis, S. webberi, Symphytocarpus amaurochaetoides, S. confluens, S. flaccidus and S. herbaticus. Due to severe shortcomings of the original description and the absence of preserved original material we regard S. axifera (Bull.) Macbride as a nomen ambiguum and propose to re-adopt the use of S. ferruginea as the valid name for the common taxon S. axifera auct. (non (Bull.) T.Macbr.). SEM characters support the treatment of Stemonitis smithii as a synonym of S. ferruginea. Stemonitis webberi instead is shown to be well separated from S. splendens by several independent characters. The importance of SEM characters for the correct identification of critical specimens of Stemonitis ferruginea, S.pallida and S. webberi is highlighted and accurate spore measurements based on SEM images are provided for all species.

scholarly journals An annotated type catalogue of seven genera of operculate land snails (Caenogastropoda, Cyclophoridae) in the Natural History Museum, London

ZooKeys ◽  
2019 ◽  
Vol 842 ◽  
pp. 1-65 ◽  
Author(s):  
Chirasak Sutcharit ◽  
Jonathan D. Ablett ◽  
Somsak Panha
Keyword(s):  
Natural History ◽  
Species Level ◽  
Land Snails ◽  
Natural History Museum ◽  
Unpublished Manuscript ◽  
Type Specimens ◽  
History Museum ◽  
Complete Catalogue ◽  
First Time

The collection of the seven cyclophorid snail genera housed in the Natural History Museum, London (NHM), includes 95 available species-level names belonging to the generaPterocyclosBenson, 1832,CyclotusSwainson, 1840,MyxostomaTroschel, 1847,RhiostomaBenson, 1860,ScabrinaBlanford, 1863,CrossopomaMartens, 1891, andPearsoniaKobelt, 1902. Lectotypes are here designated for twelve available species-level names to stabilise existing the nomenclature. A complete catalogue of these types, including colour photographs, is provided for the first time. After examining these type specimens, an unpublished manuscript name was found and is described herein asPterocyclosanamullayensisSutcharit & Panha,sp. n.

A revision of the Egyptian species of the genus Actorthia Kröber (Diptera: Therevidae: Phycinae)

Zootaxa ◽  
2013 ◽  
Vol 3613 (2) ◽  
pp. 181-189 ◽  
Author(s):  
HAITHAM B. M. BADRAWY ◽  
SALWA K. MOHAMMAD
Keyword(s):  
Natural History ◽  
Original Description ◽  
Natural History Museum ◽  
Single Female ◽  
Type Specimens ◽  
History Museum ◽  
First Time

The genus Actorthia Kröber, 1912 was described based on a single female from Tourrah (Egypt) and is revised for the first time since the original description. Actorthia khedivialis (Becker, 1912) is newly synonymized with A. frontata (Kröber, 1912) based on examination of the type specimens of both species recently discovered in the Cairo University Collection (Egypt) and Natural History Museum (Austria), respectively. Actorthia efflatouni Kröber, 1925 is confirmed as a synonym of A. micans (Kröber, 1923) and Actorthia olivierii (Macquart, 1840) is transferred to Phycus. Actorthia pulchella Kröber, 1927 is recorded in Israel for the first time. The three Egyptian species of Actorthia are diagnosed and illustrated along with colour images of the type specimens, and a key to the Egyptian species is included.

Annotated catalogue of chameleon types in the collection of the Natural History Museum, UK (NHMUK) (Reptilia: Squamata: Chamaeleonidae)

Zootaxa ◽  
2020 ◽  
Vol 4742 (3) ◽  
pp. 481-500
Author(s):  
PATRICK D CAMPBELL ◽  
WOLFGANG DENZER
Keyword(s):  
Natural History ◽  
Natural History Museum ◽  
Type Material ◽  
Type Specimens ◽  
History Museum ◽  
Annotated Catalogue ◽  
Series Type ◽  
First Time

We provide a list of type specimens of chameleons present in the collection of the Natural History Museum in London for the first time, including their associated collection numbers. Currently the collection contains 54 primary types (29 holotypes, two lectotypes and 23 syntype series plus two syntypes where the type status is in doubt) as well as numerous secondary types for 12 species (nine paratype and three paralectotype series). Type material present in the collection represents 39 valid chamaeleon taxa. 

Edward Heron-Allen FRS (1861–1943): a review of his scientific career, with an annotated bibliography of his foraminiferal publications

2004 ◽  
Vol 31 (1) ◽  
pp. 6-29 ◽  
Author(s):  
Richard L. Hodgkinson ◽  
John E. Whittaker
Keyword(s):  
Natural History ◽  
Royal Society ◽  
Annotated Bibliography ◽  
Natural History Museum ◽  
Scientific Career ◽  
History Museum ◽  
First Time

ABSTRACT: In spite of his many other interests, Edward Heron-Allen also worked for nearly 50 years as a scientist on minute shelled protists, called foraminifera, much of it in an unpaid, unofficial capacity at The Natural History Museum, London, and notably in collaboration with Arthur Earland. During this career he published more than 70 papers and obtained several fellowships, culminating in 1919 in his election to the Royal Society. Subsequently, he bequeathed his foraminiferal collections and fine library to the Museum, and both are housed today in a room named in his honour. In this paper, for the first time, an assessment of his scientific accomplishments is given, together with a full annotated bibliography of his publications held in the Heron-Allen Library. This is part of a project to produce a bibliography of his complete publications, recently initiated by the Heron-Allen Society.

SCANNING ELECTRON MICROSCOPE: POSSIBILITIES FOR STUDYING KIDNEY DISEASES

2020 ◽  
pp. 176-182
Author(s):  
Mamaeva S.N. ◽  
Vinokurov R.R. ◽  
Munkhalova Ya.A. ◽  
Dyakonova D.P. ◽  
Platonova V.A. ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Red Blood Cells ◽  
Blood Cells ◽  
Filtration Rate ◽  
Kidney Diseases ◽  
First Time ◽  
Scanning Electron

Currently, due to the intensive development of high-tech science-intensive medical and research devices, more and more attention is paid to the development of diagnostics of rare and difficult to diagnose diseases. It is known that among numerous nephropathies, hematuria may be the only symptom of kidney and urinary tract diseases, which complicates their diagnosis and treatment. In order to develop new approaches for the diagnosis of nephropathies, the authors have been studying the morphology of red blood cells in the blood and urine of children and adults using a scanning electron microscope for several years. The paper presents the results of studies of children with various kidney diseases, including IgA-nephropathy, and chronic glomerulonephritis. Scanning electron microscopy was used for the first time to detect nanoparticles on the surface of red blood cells, the size of which is comparable to the size of viruses, which became the basis for one of the authors ' assumptions, namely, the possible transport of certain types of viruses by red blood cells. Thus, some kidney diseases could be considered virus-associated. This paper presents for the first time the results of determining the glomerular filtration rate of both kidneys separately in the study of separate kidney function and of the study of urine smears obtained during catheterization of the ureters in patients with hydronephrosis of one of the kidneys by scanning electron microscopy. As in previous studies, nanoparticles were found on the surface of red blood cells, which leads to the conclusion about the possible viral nature of the disease of the considered patient. In addition, smear images obtained using a microscope showed a significant difference in the elements of the right and left kidneys urine, which did not contradict the data on the study of glomerular filtration rate. According to the authors, the capabilities of the scanning electron microscope can be applied in fundamental research of kidney diseases at the cellular and molecular levels, forming new ideas about their origin, as well as on the basis of which new methods of non-invasive diagnostics can be built.

scholarly journals Labellum and gynostemium micromorphology in Polystachya (Orchidaceae)

2020 ◽  
Vol 307 (1) ◽  
Author(s):  
Mytnik Joanna ◽  
Davies L. Kevin ◽  
Narajczyk Magdalena ◽  
Łuszczek Dorota ◽  
Kubiak Joanna ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Sub Saharan Africa ◽  
Capitate Trichomes ◽  
Sub Saharan ◽  
First Time ◽  
Scanning Electron

AbstractPolystachya is a large, pantropical orchid genus of 200 species, most of which occur as epiphytes in sub-saharan Africa. The three-lobed labellum of most Polystachya species possesses a fleshy callus and various types of trichomes and papillae. In this paper, we present the results of micromorphological studies on the labellum of 20 species, representing eight of the 13 sections in the genus, using scanning electron microscopy (SEM). Our results show the scale of infrageneric diversity of trichomes and papillae relative to the sampled sections. They also demonstrate the taxonomic value of labellar micromorphology at the sectional level. The study revealed seven types of papillae and five types of trichomes (uni- and multi-cellular) in Polystachya, some of which, are described here for the first time. Clavate trichomes are the most common and are present in 60% of the species studied. Moniliform trichomes mainly occur in sect. Polystachya and are strongly characteristic of the section. Pseudopollen is formed by fragmentation of moniliform trichomes or the detachment of other trichomes as bicellular units. We provide, for the first time, evidence for the detachment of the terminal cells of capitate trichomes.

scholarly journals Illustrated checklist of Nolinae (Lepidoptera, Nolidae) of Hong Kong, China, with description of two new species

2020 ◽  
Vol 33 ◽  
pp. 35-58
Author(s):  
Gyula M. László ◽  
Mark Sterling
Keyword(s):  
Hong Kong ◽  
New Species ◽  
Natural History ◽  
Natural History Museum ◽  
Check List ◽  
History Museum ◽  
Black And White ◽  
Two New Species ◽  
First Time

This paper provides a comprehensive check list of Nolinae species recorded in Hong Kong, China based on the collections of the second author, Dr. Roger Kendrick and the Natural History Museum, London. The checklist comprises 30 species.  Two of them are new to science and described here as new species (Spininola kendricki sp. n., and Hampsonola ceciliae sp. n.). Misidentification of the female paratype of Spininola nepali László, Ronkay & Ronkay, 2014 is revealed and the true female of S. nepali is illustrated with its genitalia described here for the first time. The hitherto unknown female of S. armata László, Ronkay & Witt, 2010 is also illustrated here for the first time. All species recorded from Hong Kong are illustrated together with their genitalia on 54 colour and 46 black and white diagnostic figures.

Scanning Electron Microscopy Coupled with Energy Dispersive Spectrometric Analysis Reveals for the First Time Weddellite and Sylvite Crystals on the Surface of Involucral Bracts and Petals of two Xeranthemum L. (Compositae) Species

2017 ◽  
Vol 23 (3) ◽  
pp. 679-686 ◽  
Author(s):  
Milan Gavrilović ◽  
Suzana Erić ◽  
Petar D. Marin ◽  
Núria Garcia-Jacas ◽  
Alfonso Susanna ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Glandular Trichomes ◽  
Energy Dispersive ◽  
Spectrometric Analysis ◽  
Eds Analysis ◽  
Taxonomic Studies ◽  
First Time ◽  
Tetragonal Bipyramid ◽  
Scanning Electron

AbstractIn this work, weddellite and sylvite crystals are identified for the first time on the involucral bracts and petals of Xeranthemum annuum and Xeranthemum cylindraceum using scanning electron microscopy coupled with energy dispersive spectrometric (SEM-EDS) analysis. Well-developed crystals of weddellite (CaC2O4·2H2O) occur in the form of a tetragonal bipyramid (hhl), rarely in combination of a bipyramid and tetragonal prism (h00). Indumentum of involucral bracts of X. cylindraceum consists of nonglandular and glandular trichomes. Sylvite (KCl) crystals are observed only on the petal surface of X. cylindraceum. The crystals of sylvite occur in the form of perfect cubes (hexahedrons), but some crystals are deformed, i.e., partially elongated. Taxonomic significance of investigated microcharacters as well as the use of SEM-EDS analysis in taxonomic studies of plants are discussed.

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