Two new Nitzschia species (Bacillariophyceae) from China, possessing a canal-raphe-conopeum system

Phytotaxa ◽  
2015 ◽  
Vol 231 (3) ◽  
pp. 260 ◽  
Author(s):  
BING LIU ◽  
SAÚL BLANCO ◽  
BANGQIN HUANG
Keyword(s):  
New Species ◽  
New Taxa ◽  
Intertidal Zone ◽  
Southern China ◽  
Ventral Side ◽  
Coastal Environment ◽  
The Other ◽  
Xiamen Bay ◽  
Two New Species ◽  
Diatom Genus

Two new species in the diatom genus Nitzschia were found in the middle intertidal zone, Xiamen Bay, southern China. Both new taxa belong to the subgenus Nitzschia, as inferred from the presence of a canal-raphe-conopeum system. The valves of both new species are dorsiventral. In Nitzschia arierae sp. nov., the raphe system is positioned centrally, the conopea fuse to the valve face at supporting points, and the zone of valve face subtended by the conopeum has areolae. In Nitzschia gaoi sp. nov., the raphe system is centrally positioned or slightly eccentric, two large conopea extend out from near the raphe while two small conopea extend out from each transverse costa and cover the striae, most part of the zone of valve face subtended by the conopeum has no areolae, and there are two long produced rostrate apices that both arch toward the ventral side or one apex arches and the other is straight. Both new species are epipelic forms inhabiting the coastal environment.

scholarly journals Two New Species of Russula Subsect. Virescentinae From Southern China

2021 ◽  
Author(s):  
Bin Chen ◽  
Jie Song ◽  
Jun Feng Liang ◽  
Yang Kun Li
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
New Taxa ◽  
Southern China ◽  
Morphological Features ◽  
Two New Species ◽  
Yellowish White ◽  
Dark Pink

Abstract Two new species from southern China, Russula subpunicea and R. albolutea, were described and illustrated. Russula subpunicea is characterized by a pinkish to dark pink pileus with striations at the margin, white lamellae without lamellulae, subglobose to broadly ellipsoid to ellipsoid basidiospores with warts and spines sometimes joined to form a reticulum, hymenial cystidia that are mainly clavate, a suprapellis mainly composed of chains of short inflated cells with attenuated terminal cells and pileocystidia that are mainly clavate and turn reddish in sulfovanillin. Russula albolutea is recognized by a yellowish white pileus with long striations at the margin, a white stipe with a yellowish tinge, subglobose to broadly ellipsoid to ellipsoid basidiospores, hymenial cystidia that are mainly clavate and apically often obtuse and turn mauve in sulfovanillin, and a suprapellis mainly consisting of chains of short inflated cells with attenuated terminal cells. In this study, we performed phylogenetic analysis based on the ITS-nrLSU-RPB2-mtSSU dataset. By combining detailed morphological features with multigene phylogenetic evidence, we assigned the new taxa to Russula subsect. Virescentinae.

Preliminary phylogeny of Fordiophyton (Melastomataceae), with the description of two new species

Phytotaxa ◽  
2016 ◽  
Vol 247 (1) ◽  
pp. 45 ◽  
Author(s):  
Si-Jin Zeng ◽  
Long-Hai Zou ◽  
Pan Wang ◽  
Wen-Jun Hong ◽  
Guo-Qiang Zhang ◽  
...  
Keyword(s):  
New Species ◽  
New Taxa ◽  
Southern China ◽  
Phylogenetic Analyses ◽  
Glandular Trichomes ◽  
Short Stem ◽  
Two New Species

A preliminary phylogeny of Fordiophyton (Melastomataceae) and the description of two new taxa, F. chenii and F. huizhouense, from southern China, are presented here. The phylogenetic analyses indicate that Fordiophyton is monophyletic and the two new species are in this clade of Sonerileae. Fordiophyton chenii is morphologically similar to F. cordifolium. Both taxa have glabrous stems, large, cordate leaves and four-sided petioles, but F. chenii has a very short stem, rosette leaves, hypanthia with dense glandular trichomes, and the shorter stamens with yellow anthers. Fordiophyton huizhouense shares with F. peperomiifolium the short, densely hirsute stem and rosette leaves, but F. huizhouense is characterized by adaxially smooth leaves, lanceolate calyx lobes, and inflated, prolonged connective bases in the longer stamens.

scholarly journals Two species with ventral receptacles in Trichocera MEIGEN (Diptera: Trichoceridae)

2020 ◽  
Vol 63 (1) ◽  
pp. 1-7
Author(s):  
Ewa Krzemiñska
Keyword(s):  
New Species ◽  
Central Europe ◽  
Ventral Side ◽  
Sperm Storage ◽  
The Other ◽  
Female Genitalia ◽  
Alternative System ◽  
Two New Species ◽  
Far Eastern

The ventral receptacle is a kind of a sperm storage shaped as an elongated pouch and positioned at the ventral side of female genitalia. It is a novelty and an alternative system to the spermathecae present in a vast majority of Diptera, and insects in general. Among the Diptera the ventral receptacle is present in the families of Brachycera Acalyptrata; the subgenus Trichocera (Staryia) is the only taxon among the entire Diptera Nematocera known to date in which the ventral receptacle was found. The subgenus comprises 13 species known from northern and central Europe. In this paper two new species of Staryia are described, one from Switzerland, and the other from Scandinavia. Additionally, a revised description of a female of T. (Metatrichocera) gigantea DAHL, 1967, is provided, based on specimens from the far eastern locality in Siberia.

scholarly journals New taxa of Zapoteca (Leguminosae, Mimosoideae) from Mexico

Phytotaxa ◽  
2015 ◽  
Vol 239 (3) ◽  
pp. 233 ◽  
Author(s):  
Héctor M. Hernández
Keyword(s):  
New Species ◽  
New Taxa ◽  
Adventitious Roots ◽  
Geographic Range ◽  
The Other ◽  
Two New Species

Two new species and one subspecies of Mexican Zapoteca (Leguminosae, Mimosoideae) are described and mapped. Zapoteca balsasensis, endemic to Guerrero, is characterized by having leafless portions of the branchlets bearing persistent stipules, whereas Z. cruzii, also from Guerrero, is distinguished by its ability of producing adventitious roots on the stem nodes. Zapoteca formosa subsp. sinaloana, endemic to Sinaloa, differs by its narrowly-oblong leaflets, which contrast with the oblong-obovate to widely obovate leaflets in the other subspecies. For the three taxa, information on their geographic range, habitat and hypotetical taxonomic affinities are provided.

scholarly journals Two new species of Russula subsect. Virescentinae from southern China

2021 ◽  
Vol 20 (8) ◽  
pp. 993-1005
Author(s):  
Bin Chen ◽  
Jie Song ◽  
Junfeng Liang ◽  
Yangkun Li
Keyword(s):  
New Species ◽  
Southern China ◽  
Two New Species

Two new species of Terebrasabella (Annelida: Sabellidae: Sabellinae) from Australia

Zootaxa ◽  
2007 ◽  
Vol 1434 (1) ◽  
pp. 51 ◽  
Author(s):  
ANNA MURRAY ◽  
GREG W. ROUSE
Keyword(s):  
New Species ◽  
The Other ◽  
Barrier Reef ◽  
Lizard Island ◽  
Eastern Australia ◽  
Two New Species ◽  
Coral Rock

Two new species of Terebrasabella Fitzhugh & Rouse, 1999 are described from eastern Australia. Terebrasabella hutchingsae sp. nov., was found from preserved coral rock debris collected in 1977 on the outer Barrier Reef near Lizard Island, Queensland. Terebrasabella fitzhughi sp. nov., was found alive in burrows in and among spirorbin serpulid tubes on intertidal rocks in Tasmania in 1996. Both species were found in mucoid tubes, and brood their young in a manner similar to the only other described species of Terebrasabella, T. heterouncinata Fitzhugh & Rouse, 1999. Terebrasabella hutchingsae sp. nov., is exceptional as it possesses a type of thoracic neurochaetal uncinus different from the other two species, and which is similar to the notochaetal acicular “palmate hook” seen in Caobangia. Descriptions of both species are given, and the diagnosis for Terebrasabella is emended. Larval and chaetal morphology and relationships among of the three known Terebrasabella spp. are discussed.

TWO NEW SPECIES OF ORTHEZIA

1898 ◽  
Vol 30 (1) ◽  
pp. 12-14 ◽  
Author(s):  
J. D. Tinsley
Keyword(s):  
New Species ◽  
The Other ◽  
Lateral Margin ◽  
Two New Species ◽  
Marginal Plates ◽  
Lateral Plates

Orthezia cheilanthi, n. sp.—Adult ♀ Length, 3.5 mm. Width, 3-3.5 mm. Length + ovisac, 6-8 mm. Width of Ovisac 3-4 mm. Body above covered with whtie secretion, which forms lateral and sub. dorsal longitudinal keels. A well-defined subdorsal furrow between the keels and the lateral margin formed by 3 or more rows of paltes; these are smaller than the projecting marginal plates, which are flattened; caudal plate and the 3 or 4 plates on each side of it very little longer than the lateral plates. The structure of the secretion is compact; in most of the other species of Orthezia it is fluffy.

Two new species of the Rhopalopsole magnicerca group (Plecoptera: Leuctridae) from China

Zootaxa ◽  
2018 ◽  
Vol 4388 (3) ◽  
pp. 444
Author(s):  
RAORAO MO ◽  
GUOQUAN WANG ◽  
DING YANG ◽  
WEIHAI LI
Keyword(s):  
New Species ◽  
Yunnan Province ◽  
Southern China ◽  
Southwestern China ◽  
Autonomous Region ◽  
Two New Species

Two leuctrid species of the Rhopalopsole magnicerca group are described as new, R. brevicula sp. nov. and R. jizushana sp. nov. from the Guangxi Autonomous Region of southern China, bordering Vietnam and Yunnan Province of southwestern China, respectively. The new species are compared with related taxa. 

Two new species ofSyllis(Polychaeta: Syllidae) from South Africa, one of them viviparous, with remarks on larval development and vivipary

2014 ◽  
Vol 94 (4) ◽  
pp. 729-746 ◽  
Author(s):  
Carol Simon ◽  
Guillermo San Martín ◽  
Georgina Robinson
Keyword(s):  
South Africa ◽  
New Species ◽  
South African ◽  
The Other ◽  
Coralline Algae ◽  
Colour Pattern ◽  
The Family ◽  
Two New Species ◽  
Haliotis Midae ◽  
Characteristic Colour

Two new species of South African Syllidae of the genusSyllisLamarck, 1818 are described.Syllis unzimasp. nov. is characterized by having unidentate compound chaetae with long spines on margin, a characteristic colour pattern and its reproduction by vivipary. Vivipary is not common among the polychaetes, but most representatives occur in the family Syllidae Grube, 1850 (in five otherSyllisspecies, two species ofDentatisyllisPerkins, 1981 and two species ofParexogoneMesnil & Caullery, 1818).Syllis unzimasp. nov. differs from the other viviparous species in having large broods (>44 juveniles) which develop synchronously. Development of the juveniles is similar to that of free-spawningSyllisspecies, but the appearance of the first pair of eyespots and the differentiation of the pharynx and proventricle occur later inS. unzima.Syllis amicarmillarissp. nov., is characterized by having an elongated body with relatively short, fusiform dorsal cirri and the presence of one or two pseudosimple chaeta on midbody parapodia by loss of blade and enlargement of shaft.Syllis unzimasp. nov. was found in high densities on culturedHolothuria scabraJaeger, 1833 with single specimens found on a culturedCrassostrea gigasThunberg, 1793 and on coralline algae, respectively, whileS. amicarmillariswas found mainly in sediment outside an abalone farm and less frequently on culturedHaliotis midaeLinnaeus, 1758. We discuss the possible benefits of the association withH. scabratoS. unzimasp. nov.

Two new species of the genus Cobitis Linnaeus (Teleostei: Cobitidae) from southern China

2015 ◽  
Vol 34 (3) ◽  
pp. 517-525 ◽  
Author(s):  
Yongxia Chen ◽  
Xiaoyun Sui ◽  
Na Liang ◽  
Yifeng Chen
Keyword(s):  
New Species ◽  
Southern China ◽  
Two New Species
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