Comparison of two new species of astogloia Bacillariophyceae) with other small members of section Ellipticae

Phytotaxa ◽  
2013 ◽  
Vol 126 (1) ◽  
pp. 1 ◽  
Author(s):  
CHIARA PENNESI ◽  
MICHEL POULIN ◽  
FRIEDEL HINZ ◽  
TIZIANA ROMAGNOLI ◽  
MARIO DE STEFANO ◽  
...  

In this study, seven Mastogloia species belonging of the section Ellipticae are morphologically described through scanning electron microscopy, including two new taxa M. matthaei and M. stellae. They were collected as epiphytes on seagrasses from several tropical (Indonesia), subtropical (Egypt, Greece, Republic of Malta, Turkey) and temperate (Slovenia, Italy) regions of the world. All these species show typical characters of the Hustedt’s section Ellipticae: elliptical valve outline, a flat valve surface and rounded apices. Moreover, this study provides novel information on the frustule ultrastructure and gives update of their current geographical distribution. Some nomenclatural inconsistencies have been resolved with the typification of M. ovulum and the related species, M. emarginata, from the original Miang Besar material in the Hustedt collection.

2018 ◽  
Vol 23 (7) ◽  
pp. 1290 ◽  
Author(s):  
Philipp Chetverikov ◽  
Charnie Craemer ◽  
Stefan Neser ◽  
Sarah Zukoff

A new phytoptid genus and two new species, Solenocristus karooensis n. g. & n. sp. and S. searsius n. sp. (Phytoptidae, Sierraphytoptinae, Sierraphytoptini), were collected in the Eastern and Western Cape provinces of South Africa, from southern African endemic dicotyledonous trees Schotia afra (Fabaceae) and Searsia lucida (Anacardiaceae) respectively. They are described and illustrated with the aid of conventional light microscopy and low temperature scanning electron microscopy. Females of both new species possess a distinct pregenital plate divided into two parts by a subcuticular medial ridge. Additionally, in S. karooensis n. sp. the movable digit of the male chelicerae varies in length: among six observed males, three males had a movable digit (md) twice shorter than the fixed digit (fd), in one male it was slightly shorter than fd and in the remaining two males md and fd were of the same length. An updated key to the world genera of the tribe Sierraphytoptini is given. The key incorporates data on seven sierraphytoptine genera including three genera (Neoprothrix Reis & Navia, Solenoplatilobus Chetverikov & Craemer and Solenocristus n. g.) which were described since the last generic key of Eriophyoidea by Amrine et al. (2003) was published.


Phytotaxa ◽  
2017 ◽  
Vol 308 (2) ◽  
pp. 267 ◽  
Author(s):  
RUZİYE DAŞKIN ◽  
GÜLŞAH BAĞÇIVAN

Galium cariense, a new species from serpentine scree in Denizli and Muğla provinces, SW Anatolia, Turkey, is here described and illustrated. The new species belongs to Galium section Kolgyda and is similar to G. bracteatum, G. penduliflorum and G. peplidifolium, from which it differs by its short, glabrous, reddish stems, small, ovate-oblong, equal cauline leaves, thyrsoid inflorescences, acute to obtuse corolla lobes and narrowly oblong, papillate mericarps. The diagnostic characters of G. cariense and related species are discussed. Moreover, ecology, conservation status and the geographical distribution of the new species are presented and its mericarp surface characteristics are investigated using scanning electron microscopy.


Phytotaxa ◽  
2021 ◽  
Vol 494 (2) ◽  
pp. 208-218
Author(s):  
DMITRY CHUDAEV ◽  
INGRID JÜTTNER ◽  
ZLATKO LEVKOV

This is the first detailed taxonomic study of the genus Navicula in the Krasnodar Territory of the Caucasus region, Russia. During the study of the genus in waterbodies of the Adegoy River valley 15 taxa were recorded. Two species, N. adegoyensis sp. nov. and N. pseudocryptofallax sp. nov., are described as new to science. Their morphology is studied by light and scanning electron microscopy, and comparisons with morphologically similar species are provided. The use of the name N. avenacea for N. lanceolata sensu auct. is discussed. Navicula diversity was higher in the Adegoy River than in pools elsewhere in the river valley.


Phytotaxa ◽  
2014 ◽  
Vol 170 (3) ◽  
pp. 155 ◽  
Author(s):  
RALITSA ZIDAROVA ◽  
ZLATKO LEVKOV ◽  
BART VAN DE VIJVER

The paper describes four new Luticola taxa from the South Shetland Archipelago, Antarctica:  Luticola neglecta sp. nov., L. bogaertsiana sp. nov., L. contii sp. nov. and L. olegsakharovii sp. nov. All new taxa are studied using both light and scanning electron microscopy and compared to other morphologically similar species from (sub-)Antarctica and elsewhere in the world. Data on their ecology and biogeography are added. 


Zootaxa ◽  
2010 ◽  
Vol 2506 (1) ◽  
pp. 1 ◽  
Author(s):  
LIANG LI ◽  
HONG-ZHANG ZHOU

Three new species of the genus Craspedomerus from China are described and illustrated: C. giganteus Li & Zhou sp. n. from Sichuan, C. gongshanus Li & Zhou sp. n. from Yunnan and C. zhangi Li & Zhou sp. n. from Tibet. Four species are reported for the first time from China: C. sinetuber (Coiffait, 1977a) from Tibet, C. cyanipennis Scheerpeltz, 1976b, C. ganeshensis Coiffait, 1983 and C. glenoides (Schubert, 1908) from Yunnan. These four and two additional species previously recorded from China (C. beckeri Bernhauer, 1934 and C. violaceipennis Cameron, 1928 are redescribed and illustrated. Sensory peg setae located on the underside of the paramere of the aedeagus of all nine Chinese species are compared using scanning electron microscopy (SEM) and the result shows that this character is useful for species identification. A key to the Chinese species of Craspedomerus is presented and geographical distribution of all sixteen species of Craspedomerus is mapped.


Phytotaxa ◽  
2013 ◽  
Vol 115 (2) ◽  
pp. 49
Author(s):  
Patrick Kociolek ◽  
Bo Wu ◽  
Qi Liu ◽  
Quanxi Wang

A new species of genus Campylodiscus is described, Campylodiscus sinensis sp. nov., from Dongtan, Chongming Island, Shanghai, China. It is a small species compared with other species in genus Campylodiscus, with two characteristic kidney-shaped bumps externally and pyramidal verrucae. Light and scanning electron microscopy characteristics of this taxon support its systematic placement in the genus Campylodiscus. This new species is compared with other small species in genus Campylodiscus from around the world. 


Phytotaxa ◽  
2020 ◽  
Vol 455 (4) ◽  
pp. 287-294
Author(s):  
LÜTFİ BEHÇET ◽  
YAKUP YAPAR

Lactuca anatolica is described as a new species from the province of Bingöl, and is known from only one locality. Its diagnostic characters are discussed, and taxonomic comments are presented. Lactuca anatolica is similar to L. leucoclada, L. orientalis subsp. nuristanica and L. orientalis subsp. orientalis but differs from these species in achenes, indumentum and leaves. Its achenes were investigated using scanning electron microscopy (SEM). Data on ecology and IUCN conservation status of the new species are also presented. A distribution map of the new and related species is provided.


Zootaxa ◽  
2011 ◽  
Vol 2732 (1) ◽  
pp. 1 ◽  
Author(s):  
MASATO HIROSE ◽  
SHUNSUKE F. MAWATARI

We identified nine species of phylactolaemate bryozoans collected from ponds and dams on Okinawa Island, Japan. This is the first report on freshwater bryozoans from Okinawa and includes the first record of Plumatella javanica from Japan. Phylactolaemate species were identified on the basis of colony and statoblast morphology and are illustrated by light microscopy and scanning electron microscopy (SEM). We detected two new plumatellid species that, like Plumatella minuta and Plumatella vorstmani, have a transparent, weakly chitinized colony and hypertubercles on the floatoblast fenestra. A previous molecular study showed these four species to form a clade separate from Plumatella and Hyalinella. We here establish the new genus Rumarcanella to accommodate these species and describe Rumarcanella gusuku n. sp. and R. yanbaruensis n. sp. We discuss the dispersal of bryozoans to and from Japan by birds carrying statoblasts and provide a key to the Phylactolaemata of Japan.


Zootaxa ◽  
2007 ◽  
Vol 1542 (1) ◽  
pp. 59-67 ◽  
Author(s):  
XUE LI ◽  
BAOZHEN HUA ◽  
LIJUN CAI ◽  
PENGYING HUANG

Two new species of scorpionflies, Panorpa byersi Hua et Huang and Panorpa brevicornis Hua et Li, from Shaanxi Province, China, are described and illustrated. Their male genitalia were observed under scanning electron microscopy. Their biology is briefly noticed with larval stage obtained through rearing. The type specimens are preserved in the Entomological Museum, Northwest A & F University.


Phytotaxa ◽  
2013 ◽  
Vol 138 (1) ◽  
pp. 43 ◽  
Author(s):  
CARLOS E. WETZEL ◽  
BART VAN DE VIJVER ◽  
LUCIEN HOFFMANN ◽  
LUC ECTOR

Planothidium incuriatum sp. nov. is described from freshwater samples from Europe and South America. It is compared with the type material of Achnanthes biporoma (=Planothidium biporomum), described from North America, to differentiate it from the new, related species. Species morphologies were compared using both light and scanning electron microscopy. Planothidium incuriatum can be differentiated from P. biporomum by its valve outline with more rostrate apices (instead of capitate) and by the areolation pattern of the striae in the raphe less valve (higher number of rows of areolae per stria). Distribution of P. incuriatum was determined from worldwide iconographic literature records where it was often identified as Planothidium biporomum among other names here detailed. While P. incuriatum appears to be widely distributed around the world, P. biporomum is, according to verified records, far more restricted.


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