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Chelipoda nigraristata sp. n., a new aquatic dance fly of the subfamily Hemerodromiinae (Diptera, Empididae) is described from China. Relationships with other described species are discussed. A key to the species of the genus Chelipoda from China is presented for the first time. 相似文献
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报道中国爵床科一新记录种——翅柄裸柱草[Gymnostachyum sigantum (Benoist) J. B. Imlay],并提供了该种的描述。为名称Gymnostachyum sigantum指定了后选模式。 相似文献
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F. Paul Doerder 《The Journal of eukaryotic microbiology》2019,66(1):182-208
Tetrahymena mitochondrial cox1 barcodes and nuclear SSUrRNA sequences are particularly effective at distinguishing among its many cryptic species. In a project to learn more about Tetrahymena natural history, the majority of >1,000 Tetrahymena‐like fresh water isolates were assigned to established Tetrahymena species with the remaining assigned to 37 new species of Tetrahymena, nine new species of Dexiostoma and 12 new species of Glaucoma. Phylogenetically, all but three Tetrahymena species belong to the well‐established “australis” or “borealis” clades; the minority forms a divergent “paravorax” clade. Most Tetrahymena species are micronucleate, but others are exclusively amicronucleate. The self‐splicing intron of the LSUrRNA precursor is absent in Dexiostoma and Glaucoma and was likely acquired subsequent to the “australis/borealis” split; in some instances, its sequence is diagnostic of species. Tetrahymena americanis, T. elliotti, T. gruchyi n. sp., and T. borealis, together accounted for >50% of isolates, consistent with previous findings for established species. The biogeographic range of species found previously in Austria, China, and Pakistan was extended to the Nearctic; some species show evidence of population structure consistent with endemism. Most species were most frequently collected from ponds or lakes, while others, particularly Dexiostoma species, were collected most often from streams or rivers. The results suggest that perhaps hundreds of species remain to be discovered, particularly if collecting is global and includes hosts of parasitic forms. 相似文献
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根据形态、解剖特征和化学特征,报道了蜡盘衣属(Biatora)中国新记录3种:阿拉斯加蜡盘衣(B.alaskana)、浅红蜡盘衣(B.alborufidula)和长孢蜡盘衣(B.longispora),并编制了中国蜡盘衣属已知种的检索表。 相似文献
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A new Eupenicillium species, E. saturniforme was isolated from soil in Jilin Province, northeast China. Morphologically, it resembled E. shearii and E. tropicum, but is distinguished from them by slowly maturing cleistothecia, lenticular ascospores with nearly smooth-walled convex
surfaces, strictly velutinous colony texture with abundant conidiogenesis, robust biverticillate penicilli, apically vesiculate
metulae and rough-walled stipes and conidia. The partial β-tubulin gene sequence of the new species (EU644080) showed relationship
with Penicillium glabrum in the BLAST search in GenBank. Further analyses of partial calmodulin and ribosomal DNA internally transcribed spacer 1-5.8S-internally
transcribed spacer 2 (rDNA ITS1-5.8S-ITS2) sequence data confirmed that E. saturniforme fell in the clade with P. glabrum, P. lividum, P. purpurascens, P. spinulosum and P. thomii of Subgenus Aspergilloides. However, E. saturniforme is a distinctive species lacking close relatives among described species of penicillia.
Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. 相似文献
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Helicopsyche zhejiangensis sp. n. from southeastern China is described and figured, representing the first record of this family in China. The species has a general resemblance with Helicopsyche species known from the Oriental Region, and the East Palaearctic species Helicopsyche coreana Mey from North Korea. 相似文献
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甘肃省植物分布新记录 总被引:2,自引:0,他引:2
报道了甘肃省植物分布新记录2属5种.新记录属是紫金牛科(Myrsinaceae)的杜茎山属(Maesa)和紫金牛属(Ardisia).新记录种是湖北杜茎山(M.hupehensis)、紫金牛(A.japonica)、豆科(Leguminosae)的肉色土(圈)儿(A pios carnea)、凤仙花科(Balsaminaceae)的四川凤仙花(Impatiens sutchuenensis)和菊科(Asteraceae)的粗毛牛膝菊(Galinsoga quadriradiata). 相似文献
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首次发现并描述了中国广东省的绣球花科(Hydrangeaceae)常山属(Dichroa)一新种:广东常山(D.fistulosa)。该种具有空心的茎,这在常山属中是唯一的。该种与海南常山(D.mollissima)相似,但可以通过其叶上的毛被来区分。该种亦与菲律宾常山(D.philippinensis)相似,但其叶的形状及锯齿明显不同。 相似文献
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报道了中国兰科(Orchidaceae)植物一新记录种:中越带唇兰(Tainia acuminata Averyanov),并提供形态描述及彩色图片。该种与心叶带唇兰(T.cordifolia Hook.f.)相近,不同在于萼片与花瓣均为狭披针形,唇瓣无侧裂片,阔披针形,渐尖,唇瓣边缘在中上部波状卷曲,唇盘具3条不明显的脊。 相似文献
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报道了发现于辽宁省的2种中国归化植物新记录:白毛马鞭草(Verbena stricta Vent.)和向日葵(Helianthus annuus L.),白毛马鞭草穗状花序粗壮而紧凑,单生枝顶或呈简单的聚伞状或圆锥状排列,且花序轴在果期显著延长,叶卵圆形,无柄,与中国有报道的本属其他物种区别明显。该种原产美国西部至中部地区,近来在辽宁省铁岭市发现有归化。向日葵原产于北美地区,被发现广泛归化于辽宁省大连市,营口市鲅鱼圈也有发现。归化种群形态特征与该地区栽培类型完全不同,其花序极多分枝,头状花序直径较小,瘦果极小,表面纹饰多样性很高。 相似文献
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报道了采自云南省西盟县的姜科狭义豆蔻属一中国新记录种:少花豆蔻(Amomum pauciflorum Baker)。该种与长柄豆蔻(A. longipetiolatum Merr.)形态上最为相似,但前者花冠裂片显著较宽,药隔附属体新月形而非3深裂,二者容易区别。文章对该种的形态特征和地理分布进行了补充描述,并提供了彩色图版,凭证标本存放于中国科学院西双版纳热带植物园标本馆(HIBTC)。 相似文献
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报道了中国黄枝衣科(Teloschistaceae)的一中国新记录属粉黄衣属(新拟)(Xanthomendoza)和一中国新记录种漫粉黄衣(新拟)(Xanthomendoza ulophyllodes)及石黄衣属(Xanthoria)的一新记录种裂芽黄衣(新拟)(Xanthoria calcicola)。对漫粉黄衣的ITS序列进行了测定和系统发育分析,并对相关类群的形态和分子数据进行了讨论。对2新记录种的形态特征、生境与分布进行了详细描述,并提供了形态特征图。 相似文献