scholarly journals Dryopteris Lijianxiuii (Dryopteridaceae), a New Species From China

2021 ◽  
pp. 747-753
Author(s):  
Xiaojuan Li ◽  
Xiao Wang ◽  
Wei Liu

Dryopteris lijianxiuii X. J. Li, a new species of Dryopteris Adans. from Shandong, China, is described and illustrated. It is closer to D. lacera (Thunb.) O. Kuntze for its morphological and palynological characters of LM and SEM studies but differs by a number of characters, such as, the leaves rectangular roundlanceolate, apex acuminate, and without narrow sharply; sori ornamented in the upper or middle part of 1-3 pairs of pinnaes at the base of the leaf, and densely covered with the upper and middle pinnaes back; spore perispore with tuberculiform-rugulate protrusions, and surfaces with melting ice and snow ornamentation. The sp. nov. is described with LM and SEM characters of spore and fronds, compared with that of D. lacera (Thunb.) O. Kuntze and provided with photographs. Bangladesh J. Bot. 50(3): 747-753, 2021 (September) Special

Phytotaxa ◽  
2016 ◽  
Vol 273 (2) ◽  
pp. 115 ◽  
Author(s):  
KELLY CRISTINA DA SILVA-GONÇALVES ◽  
JOSÉ FERNANDO A. BAUMGRATZ ◽  
ANDRÉ FELIPPE NUNES-FREITAS

A new species of Bertolonia (Melastomataceae; Bertolonieae) endemic to the Brazilian Atlantic Forest is described and illustrated. Bertolonia organensis is known from only one locality in the Serra dos Órgãos National Park, state of Rio de Janeiro. The main diagnostic characteristics that distinguish B. organensis are the leaves with bullate adaxial surface and foveolate abaxial surface, cordate base and seven acrodromous veins, petiole and hypanthium glandulose-punctate, setulose and setulose-glandulose, the external calyx lobes erect, thick, narrow-triangular, apex acuminate-glandulose, margin entire, not ciliate, and the anthers connective dorsally appendaged, trilobed or with an acute calcar. Comparisons with similar species, geographic distribution and habitat are presented for the new species, as well as a key to identify all Bertolonia taxa known from the state of Rio de Janeiro. Bertolonia organensis is classified as Critically Endangered (CR).


2020 ◽  
Vol 94 (4) ◽  
pp. 653-680
Author(s):  
Brian D.E. Chatterton

AbstractA well-preserved fauna of largely articulated trilobites is described from three new localities close to one another in the Bull River Valley, southeastern British Columbia. All the trilobites from these localities are from the lower or middle part of the Wujiajiania lyndasmithae Subzone of the Elvinia Zone, lower Jiangshanian, in the McKay Group. Two new species are proposed with types from these localities: Aciculolenus askewi and Cliffia nicoleae. The trilobite (and agnostid) fauna from these localities includes at least 20 species: Aciculolenus askewi n. sp., Agnostotes orientalis (Kobayashi, 1935), Cernuolimbus ludvigseni Chatterton and Gibb, 2016, Cliffia nicoleae n. sp., Elvinia roemeri (Shumard, 1861), Grandagnostus? species 1 of Chatterton and Gibb, 2016, Eugonocare? phillipi Chatterton and Gibb, 2016, Eugonocare? sp. A, Housia vacuna (Walcott, 1912), Irvingella convexa (Kobayashi, 1935), Irvingella flohri Resser, 1942, Irvingella species B Chatterton and Gibb, 2016, Olenaspella chrisnewi Chatterton and Gibb, 2016, Proceratopyge canadensis (Chatterton and Ludvigsen, 1998), Proceratopyge rectispinata (Troedsson, 1937), Pseudagnostus cf. P. josepha (Hall, 1863), Pseudagnostus securiger (Lake, 1906), Pseudeugonocare bispinatum (Kobayashi, 1962), Pterocephalia sp., and Wujiajiania lyndasmithae Chatterton and Gibb, 2016. Pseudagnostus securiger, a widespread early Jiangshanian species, has not been previously recorded from southeastern British Columbia. Non-trilobite fossils collected from these localities include brachiopods, rare trace fossils, a complete silica sponge (Hyalospongea), and a dendroid graptolite. The faunas from these localities are more diverse and better preserved than those from other previously documented localities of the same age in the region.Additional specimens of a rare species, found by amateur collectors in previously documented localities of slightly younger age (upper part of Wujiajiania lyndasmithae Subzone) in the same region, are documented. These new specimens, when combined with an earlier discovered specimen, provide adequate type material to propose a new species of Labiostria, L. gibbae, which may be useful for biostratigraphy.UUID:http://zoobank.org/89551eac-b3af-4b2b-8ef3-7c2e106a560d


Phytotaxa ◽  
2018 ◽  
Vol 351 (2) ◽  
pp. 181
Author(s):  
FENGYUN ZHAO ◽  
YU LI ◽  
TOM HSIANG ◽  
SHUYAN LIU

Craterium yichunensis sp. nov., and C. dictyosporum are described and illustrated. They were found in Heilongjiang Province, China, and C. dictyosporum is a new record for China. Craterium yichunensis differs from other species of Craterium in having sessile sporocarps with a thick lid, the middle part of which is more than 100 μm thick, with a yellow membrane covering the cup after lid has fallen off. Additionally, it has no columella or pseudocolumella. Both species are also illustrated with scanning electron micrographs.


Acarologia ◽  
2017 ◽  
Vol 57 (4) ◽  
pp. 765-777
Author(s):  
Wataru Hagino ◽  
Satoshi Shimano

The present work deals with two members of the oribatid mite subgenus Galumna (Cosmogalumna) Aoki, 1988 from Japan. A new species, G. (C.) centroclathrata n. sp. is morphologically most similar to G. (C.) praeoccupata Subías, 2004 from China; however it differs from it by conspicuous granular ornamentation on the surface of the pteromorph, the shape of the polygonal sculpture on the notogaster, and a conspicuous linear sculpture on the middle part of the genital plates. Galumna (Cosmogalumna) ornata Aoki, 1988, the type species of the subgenus, is additionally described based on the specimens from the type locality. The position of lamellar setae slightly anteriad to L lines and the presence of 10 pairs of minute notogastral setae should be considered in any future identification of G. (C.) ornata.


Zootaxa ◽  
2020 ◽  
Vol 4802 (3) ◽  
pp. 541-555
Author(s):  
XIN-JIANG LI ◽  
DA-PENG ZHANG ◽  
HAI-XIANG YIN

The complete mitochondrial genomes of three species of Haplotropidini were sequenced, annotated and analyzed. Then, combined with 18 species mitogenomes of Acridoidea and 1 species of Tridactyloidea, the phylogenetic relationships were reconstructed by maximum likelihood (ML) and Bayesian (BI) methods based on PCGs. The phylogenetic relationship tree showing that Sulcotropis Yin et Chou is a valid genus and not a synonym of Haplotropis Saussure, 1888. A new species Sulcotropis xiaowutaiensis sp. nov. is described in this paper from China, it is allied to Sulcotropis cyanipes Yin et Chou, 1979, but differs from latter by median carina of pronotum cut by posterior transverse sulcus slightly, epiphallus with middle part equal both sides in high, cercus of male gradually widened at base, interspace of mesosternum narrowed in the base slightly and subgenital plate of female oblong, hind margin with small acute angle in the middle. Type specimens are deposited in the College of Life Sciences, Hebei University, Baoding, Hebei, China. 


Zootaxa ◽  
2017 ◽  
Vol 4258 (3) ◽  
pp. 287
Author(s):  
JOSEP MARIA OLMO-VIDAL

A new species of the genus Prionotropis Fieber, 1853 is described from Catalonia (Northeast of the Iberian Peninsula). Prionotropis ancosae n. sp. was collected in a calcicolous stepic scrub dominated mainly by thyme (Thymus vulgaris). P. ancosae n. sp. is characterized by the following characters: the pronotum in dorsal view narrow and in lateral view with the principal transverse sulcus between prozona and metazona clearly incised; mesosternal lobes equal width than long and width than mesosternal interspace; tegmina extend at most to the end of second abdominal segment in the females and the end of abdomen in the males; inside hind femora at the base to the middle part and inside hind tibiae blue; and phallic complex with the penis valves long. This new species is compared to the similar species P. flexuosa (Serville, 1838). In Catalonia two species of genera Prionotropis Fieber, 1853 are present, P. flexuosa and P. ancosae n. sp. 


Botany ◽  
2016 ◽  
Vol 94 (9) ◽  
pp. 831-845 ◽  
Author(s):  
Ignacio H. Escapa ◽  
Maria A. Gandolfo ◽  
William L. Crepet ◽  
Kevin C. Nixon

A new species of anatomically preserved Cupressaceae is described from the Upper Cretaceous Raritan Formation (New Jersey, USA). The fossils are charcolified isolated ovuliferous complexes that were studied by means of a combination of SEM images and micro-computed tomography (micro-CT), allowing the observation of morphological and anatomical characters. Each ovuliferous complex bears 3–4 anatropous winged seeds, disposed in one row on a thin medial part of the adaxial side of the ovuliferous complex. Based on the combination of characters such as ovuliferous complex morphology, arrangement of vascular tissues and resin canals, seed number and their morphology, orientation and disposition, these fossils are placed within a new species of the fossil genus Athrotaxites. The developmental stage of the specimens is analyzed base on comparisons with living representatives of the subfamily Athrotaxoideae (i.e., Athrotaxis spp.), which supports a post-pollination stage for these fossils. In addition, the new species is compared with other extant and extinct representatives of basal cupressaceous subfamilies. This new record from the Upper Cretaceous sediments of New Jersey further supports a wider distribution of the subfamily Athrotaxoideae during the middle part of the Mesozoic, as it has been also noted for other basal representatives of the family Cupressaceae.


Rodriguésia ◽  
2010 ◽  
Vol 61 (1) ◽  
pp. 105-108 ◽  
Author(s):  
Andrea Carla Caldas Bezerra ◽  
Laise de Holanda Cavalcanti

Abstract A new species of Diderma (Physarales, Didymiaceae) was recorded in the Mata Estrela Private Nature Reserve, Rio Grande do Norte state. It is characterized by sessile sporangia, white globose columella, capillitium irradiating from the peridium, forming three layers, the middle part strongly calcareous, the outer layer cartilaginous and the inner layer membranous. A key to species of sessile sporangia Diderma with triple peridium is presented.


Phytotaxa ◽  
2015 ◽  
Vol 220 (1) ◽  
pp. 98
Author(s):  
Walter A. Palacios

A new species, Amyris karlitae, from southern Ecuador is described, illustrated and contrasted with closely related species. It is characterized by the following combination of characters: glabrous unifoliolate leaves with lamina elliptic, ovate-lanceolate or oblong-elliptic, 6–11 cm long, 4–6 cm wide, with apex acuminate or emarginate; secondary veins in 10–13 pairs, more or less convergent, inconspicuous, branched towards the margin; stamens 8, 4 short alternating with 4 longer. The new species grows in the semi-deciduous forests of southern Ecuador, between 1400 and 1700 m.


1997 ◽  
Vol 54 (2) ◽  
pp. 171-181 ◽  
Author(s):  
G. Bakhshi Khaniki

A new Fritillaria species, F. atrolineata, is described from Iran. The new species, an endemic to Western Azarbaijan, belongs to the F. caucasica group, sect. Olostyleae, subgenus Fritillaria. SEM studies of nectaries, stamen, pollen and styles are presented. Differences from other Iranian species in the Caucasica group are discussed. The chromosome number is 2n = 24.


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