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1.
In the third report of the present series, four new and noteworthy plant-inhabiting fungi are described and illustrated. Pseudodidymaria symplocarpi on Symplocarpus nipponicus is reported as a new species. Cheirospora botryospora and Exosporium mexicanum are new to Japan. Pittosporum tobira is a new host plant for Flosculomyces floridaensis.  相似文献   

2.
Some new micromycetes from New Zealand   总被引:1,自引:0,他引:1  
New collections of micromycetes from New Zealand are recorded, including several new species and a new variety of the genera Cercospora, Entylomella, Gonatophragmium, Pseudocercospora, Ramularia and Subramaniomyces as well as some new combinations and a new name. Based on a new generic concept of the Pseudocercospora/Cercostigmina complex, which is supported by new molecular examinations, all species of Cercostigmina are re-allocated to Pseudocercospora.  相似文献   

3.
Six Inocybes are described and illustrated as new taxa or new records from Japan. A new species, Inocybe magnicarpa, is a member of section Marginatae. Two new varieties, I. malenconii var. cylindrata, a member of section Dulcamarae, and I. brunneorufa var. angusta, a representative of section Marginatae. Inocybe reisneri (section Rimosae) and I. fuscidula (section Tardae), are recorded as new to Japan. Inocybe pseudodestricta (section Tardae) is redescribed from a new locality (Chiba Prefecture). They are compared with similar taxa.  相似文献   

4.
Abstract. The phylogenetic analysis of ninety‐two adult morphological characters supports the treatment of Nirvaninae as a junior synonym of Evacanthinae and the redefinition of Evacanthinae to include the tribes Nirvanini, Balbillini, Evacanthini and Pagaroniini. The analysis indicates that Nirvaninae, as previously defined, is polyphyletic. A key to tribes and Neotropical genera is provided and diagnostic features for these taxa are reviewed. Jassoqualus Kramer, Neonirvana Oman, Synogonia Melichar (=Jassopronus Nielson & Godoy, syn.n.) and Tahura Melichar are retained within Nirvanini and two new Neotropical genera of this tribe are described and illustrated: Antillonirvana, gen.n., based on two new species from the Dominican Republic and one from Cuba; and Chibchanirvana, gen.n., based on two new species from Colombia. Pentoffia Kramer and Evanirvana Hill are treated as incertae sedis within Evacanthinae. Six new species of Pentoffia, a new species of Synogonia, a new species of Jassoqualus, two new species of Neonirvana and eleven new species of Tahura, all from South America, are also described and illustrated. The following taxa included previously in Nirvaninae are excluded from Evacanthinae, sensu lato: Tungurahuala Kramer to Cicadellinae; Columbonirvana Linnavuori to Typhlocybinae; Macroceratogoniini to Coelidiinae; Occinirvanini Evans to Deltocephalinae. Omaranus Distant, placed previously in Occinirvanini, is transferred to Doraturini (Deltocephalinae).  相似文献   

5.
该文描述了自四川西部发现的毛茛科毛茛属五新种.其中:三新种,即石棉毛茛(Ranunculus shimianensis)、细叉叶毛茛(R.tenuifurcatus)和细裂叶毛茛(R.perdissectus)隶属于美丽毛茛组(Sect.Auricomus);第四新种,即泸定毛茛(R.ludingensis)隶属于毛茛...  相似文献   

6.
Cohen  Rosa Graciela 《Hydrobiologia》2002,486(1):91-100
At present, the American genus Thamnocephalus has three species, recorded from several states of U.S.A., México and Venezuela: Thamnocephalus platyurus Packard, T. mexicanus Linder and T. venezuelensis Belk & Pereira. The new species Thamnocephalus salinarum, from a turbid saline temporary pond inside the Salinas Grandes of Córdoba, Argentina is described here. The new species differs from all other congeners by the presence in the male, of an unbranched frontal appendage and a pair of soft cordiform parapenial lobes; also, by the sexually dimorphic caudal fin-like lobe. This new species may represent a new genus, however since only five specimens were collected it was not possible to observe if the penial ornamentation conforms to the Thamnocephalus type. Therefore, a conservative position is taken until new material allows proper analysis, by keeping the new species in the genus Thamnocephalus under the new subgenus Simplicephalus.  相似文献   

7.
《Journal of bryology》2013,35(4):271-280
Abstract

The epiphytic bryoflora of Jbel Bouhalla, a mountain sited in the Rif range (northern Morocco), is catalogued, resulting in a list of 48 taxa (45 mosses and 3 liverworts). One new variety, Orthotrichum speciosum var. brevisetum, is described, and some new records are reported: Orthotrichum shawii and O. pallens are new to northern Africa, while Habrodon perpusillus and O. speciosum var. speciosum are new to Morocco.  相似文献   

8.
We drew up a checklist of the Italian vegetation (http://www.prodromo-vegetazione-italia.org/), up to the syntaxonomical rank of alliance. During the compilation of this checklist, we observed that some syntaxa were invalidly published. For this reason, in this article we validated some syntaxa names and, at the same time, described new syntaxa of different hierarchical levels. Therefore, 10 new orders, 1 new suborder, 18 new alliances, 3 new suballiances and 5 new associations are described here. These new syntaxa belong to the following classes: Adiantetea capilli-veneris, Parietarietea judaicae, Thlaspietea rotundifolii, Artemisietea vulgaris, Stellarietea mediae, Galio aparines–Urticetea dioicae, Mulgedio alpini–Aconitetea variegati, Trifolio medii–Geranietea sanguinei, Festuco-Seslerietea, Salicetea herbaceae, Festuco valesiacae–Brometea erecti, Molinio-Arrhenatheretea, Cisto cretici–Micromerietea julianae, Rhamno catharticae–Prunetea spinosae, Salici purpureae–Populetea nigrae, Salicetea purpureae, Quercetea ilicis and Querco roboris–Fagetea sylvaticae.  相似文献   

9.
药用植物内生放线菌具有合成天然活性化合物的潜力,放线菌新种是寻找新型抗生素先导化合物的一个重要来源。【目的】挖掘药用植物地黄内生放线菌资源,并对地黄轮纹病拮抗菌株leaf-16进行新种鉴定。【方法】本研究采用五步消毒法分离河南道地药材地黄的内生放线菌,以地黄轮纹病原真菌草茎点霉(Phoma herbarum)为指示菌,采用平板对峙法筛选对该病菌有抑制作用的菌株,16S rRNA基因测序发现一株抗地黄轮纹病的放线菌新种leaf-16。通过形态、生理生化、细胞壁化学组分和分子生物学等特征对菌株leaf-16进行多相分类学鉴定。【结果】经平板对峙实验得到8株抗地黄轮纹病的放线菌,其中菌株leaf-16经16S rRNA基因测序、形态比较、生理生化、化学组分和分子生物学以及DNA-DNA杂交分析,确定菌株leaf-16为1株链霉菌新种,并命名为Streptomyces folium。【结论】菌株leaf-16为1株链霉菌新种,具有抑制地黄轮纹病原真菌的活性,为进一步分离新型抗地黄轮纹病的生物制剂奠定物质基础。  相似文献   

10.
Abstract: Four new Brachycera fossils were collected from the Daohugou biota, China. Among these, two impressions demonstrating peculiar wing venation can be designated as two new species of a new genus (Mostovskisargus portentosus gen. et sp. nov. and M. signatus sp. nov.) referred to a new subfamily Mostovskisarginae (subfam. nov.) within Archisargidae. The third impression belongs to a new species (Calosargus (Pterosargus) sinicus sp. nov.) referred to the subgenus Pterosargus Mostovski, 1997 of Calosargus Mostovski, 1997 within Archisarginae, Archisargidae. It is only the second member of the subgenus Pterosargus worldwide. The fourth impression is a nearly complete fly, Jurassinemestrinus orientalis gen. et sp. nov. referable to Rhagionemestriidae. It reveals new morphological data about rhagionemestriids and extends the geographical distribution of this group beyond Europe and Central Asia during the Mesozoic. A correlation for the archisargid composition of taxa in Daohugou and Karabastau formations is discussed. The age of the fly‐bearing strata is briefly reassessed and can be more accurately limited to the Callovian–Oxfordian based on both biostratigraphical correlation and radiometric dating.  相似文献   

11.
12.
The aim of this study is to provide new syntaxa for the Italian vegetation checklist. For the class Rhamno–Prunetea which includes the class Paliuretea the new alliance Rhamno saxatilis–Paliurion spinae-christi is described, that is included in the order Paliuretalia spinae-christi with a central-western Mediterranean and sub-Mediterranean distribution. Otherwise, the more thermophilous Paliurus spina-christi vegetation is included in the new suballiance named as Oleo sylvestris–Paliurenion spinae-christi within the alliance Oleo–Ceratonion of the class Quercetea ilicis. For the class Trifolio–Geranietea medii, a new alliance named Hyperico calabricae–Asphodelion macrocarpi is proposed here.  相似文献   

13.
王文采 《广西植物》2022,42(1):10-13
该文描述了自四川西部发现的毛茛科二新种,包括四川乌头属一新种,即泸定乌头(Aconitum ludingense W.T.Wang),此新种隶属于乌头属乌头亚属,以及四川唐松草属一新种,即狭药唐松草(Thalictrum stenantherum W.T.Wang),给出了此新种与其近缘种六脉萼唐松草之间的形态区别.  相似文献   

14.
A new species, namely Pyrus cordifolia (P. sect. Pashia) is described as new to science, and two new records including P. tamamschianiae (P. sect. Pyrus) and P. theodorovii var. latifolia (P. sect. Argyromalon) are reported for the flora of Iran. These taxa are compared with their closest relatives. Photographs and a distribution map of these taxa as well as an illustration of the new species are presented. An identification key to members of P. sect. Pashia in Iran is provided.  相似文献   

15.
Broadening the avenue of intersubgenomic heterosis in oilseed Brassica   总被引:1,自引:0,他引:1  
Accumulated evidence has shown that each of the three basic Brassica genomes (A, B and C) has undergone profound changes in different species, and has led to the concept of the “subgenome”. Significant intersubgenomic heterosis was observed in hybrids between traditional Brassica napus and first generation lines of new type B. napus. The latter were produced by the partial introgression of subgenomic components from different species into B. napus. To increase the proportion of exotic subgenomic components and thus achieve stronger heterosis, lines of first generation new type B. napus were intercrossed with each other, and subjected to intensive marker-assisted selection to develop the second generation of new type B. napus. The second generation showed better agronomic traits and a higher proportion of introgression of subgenomic components than did the first generation. Compared with the commercial hybrid and the hybrids produced with the first generation new type B. napus, the novel hybrids showed stronger heterosis for seed yield during the 2 years of field trials. The extent of heterosis showed a significant positive correlation with the introgressed subgenomic components in the parental new type B. napus. To increase the content of the exotic subgenomic components further and to allow sustainable breeding of novel lines of new type B. napus, we initiated the development of a gene pool for new type B. napus that contained a substantial amount of genetic variation in the Ar and Cc genome. We discuss new approaches to broaden the avenue of intersubgenomic heterosis in oilseed Brassica.  相似文献   

16.
In a study of the mycobiota associated with bark beetles, a dimorphic fungus producing longitudinally septate basidia of the Tremella-type and yeast cells budding off from stalks, was collected. Detailed morphological, physiological and molecular studies revealed that this fungus represents the teleomorph of Sterigmatosporidium polymorphum. Consequently, a new genus, Cuniculitrema gen. nov., and a new species, C. polymorpha sp. nov., are proposed. Comparative morphological and molecular studies indicated that the new taxon belongs to a group that also comprises species of the stalk-forming anamorphic genera Fellomyces and Kockovaella. The new family Cuniculitremaceae is proposed for this group.  相似文献   

17.

The genus Ctenomys includes a high number of taxa, with at least ten species from Patagonia and three recently described species for northeastern Chubut Province (Argentina). Ctenomys sociabilis is a social species of the genus Ctenomys and is currently distributed in the surrounding area of Sierra Cuyin Manzano (Neuquén Province), with a recently extinct population that occurred in Laguna Nahuelquir (Cushamen, Chubut Province). Molecular analyses have placed C. sociabilis at the base of Ctenomys clade, as the sister species to all other Ctenomys. Based on a morphological assessment (qualitative and quantitative) and DNA sequencing, we describe a new species of Ctenomys from Esquel, Chubut Province. Phylogenetic analysis shows the new species to be closely related to C. sociabilis, with evidence of solitary behavior. This new species is the first reported to be closely related phylogenetically to Ctenomys sociabilis at the base of the Ctenomys phylogeny. We provide anatomical comparisons between the new species and other species of Ctenomys from Patagonia, especially C. sociabilis.

  相似文献   

18.
A new mutant of a pea with a repeatedly odd-pinnate leaf type was obtained. The compound leaf of the mutant is different from the earlier known forms with an odd-pinnate type of leaves by very narrow and elongated leaflets that possess a tendency of entanglement. It was found that the occurrence of the new type of repeatedly odd-pinnate leaves is mediated by a mutation at the Tl locus (chromosome 7). This mutation is not analogous to White’s acacia tl w mutation or to Lamm’s acacia tl pet mutation. The recessive type of inheritance of the new mutant gene was established relative to the tl w allele. It was proposed to designate the new mutation as tl UL . The plants with the new type of acacia-like leaves (tl UL tl UL Af-) have been obtained.  相似文献   

19.

Existing classifications of Tenebrionidae are reviewed briefly. The inclusion of the families Alleculidae, Lagriidae, and Nilionidae in Tenebrionidae is confirmed. The splitting off from this complex of a family, Tentyriidae, by Doyen is discussed and rejected. Various taxa which had been included in Tenebrionidae are excluded, amongst which Syrphetodes, Brouniphylax, Exohadrus, Arthopus, Cotulades, Docalis, and Latometus (=Elascus) have not previously been formally excluded. A new family, Archeocrypticidae, is established and defined briefly for Archeocrypticus, Sivacrypticus, and Enneboeus.

Data from matrices based on adult and larval characters comparing Tenebrionidae with most other families of Tenebrionoidea (=Heteromera) are presented for derived characters in common, and for overall similarity. The families most closely related to Tenebrionidae according to these data are Zopheridae, Chalcodryidae, Merycidae, Archeocrypticidae, Synchroidae, Colydiidae, and Monommatidae; none is very close to Tenebrionidae, which has had a long independent history.

Characters of the subfamilies recognised are tabulated, and interpreted in a phylo‐genetic dendrogram. Phylogeny is discussed in relation to adaptive changes in the biology of the various subfamilies, which are Zolodininae new subfamily, Pimeliinae new sense (including Tentyriinae), Toxicinae new sense, Phrenapatinae new sense (including Archeoglenini new tribe), Diaperinae new sense, Gnathidiinae, Tenebrioninae new sense, Alleculinae, Nilioninae, Lagriinae new sense, Cossyphinae, and Cossyphodinae new status.

Biology, economic importance, copulation, orientation of the aedeagus, and distribution are discussed briefly.

Definitions of the family and subfamilies and a key to subfamilies are given, and keys to tribes are included for the smaller subfamilies. The previously unknown larvae of the genera Zolodinus, Menimus, Archeoglenes, Lepispilus, and Nyctoporis are described in detail. Pupae of Zolodinus and Nyctoporis are described. Keys to larvae include many other genera which were hitherto unknown or poorly known.  相似文献   

20.

A new chigger mite species, Schoutedenichia microcebi n. sp. is described from the grey mouse lemur Microcebus murinus (J.F. Miller) from Madagascar. The new species is closely related to S. dutoiti (Radford, 1948), a species described from a single specimen collected on a rodent in South Africa. Examination of the holotype and new material on S. dutoiti from South Africa enabled us to re-describe this species and provide new data on its hosts and geographical distribution.

  相似文献   

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