共查询到18条相似文献,搜索用时 93 毫秒
1.
2.
报道东亚环柄菇属的—个新记录种——锥鳞环柄菇Lepota jacobi Vellinga & Knudsen,标本采自中国云南。该种的鉴别特征是菌盖密被灰色至暗褐色的锥状鳞片;担孢子椭圆形,腹部近平直,极小;囊状体缺如。 相似文献
3.
梁俊峰 《植物分类与资源学报》2007,29(6):617-618
报道东亚环柄菇属的一个新记录种———锥鳞环柄菇Lepiota jacobi Vellinga & Knudsen, 标本采自中国云南。该种的鉴别特征是菌盖密被灰色至暗褐色的锥状鳞片; 担孢子椭圆形, 腹部近平直, 极小; 囊状体缺如。 相似文献
4.
5.
6.
依据形态学及ITS、LSU、β-tub和tef-1α等4个片段系统发育分析结果,描述了产自中国的小脆柄菇属微小脆柄菇支系下1个新种及2个中国新记录种,即翘鳞小脆柄菇Psathyrella squarrosa、斑褶菇状小脆柄菇P. panaeoloides和皂味小脆柄菇P. saponacea。翘鳞小脆柄菇发现于广东省,群生,担子体较小,以菌盖由长椭圆形至近球形膨大细胞组成的白色角状鳞片及囊状的侧生囊状体为主要识别特征。提供了详细的描述、线条图、生态照片及相近种的检索表。 相似文献
7.
编写出中国环柄属的已知44种的分类检索表,希望能有利于更好地认识我国丰富的环柄菇属资源的物种多样性,也期望今后在逐步完善我国环柄菇属的研究过程中,对本文内容加以改进修正. 相似文献
8.
[背景] 托光柄菇属(Volvopluteus)隶属于光柄菇科(Pluteaceae),目前世界上仅有4个种。[目的] 调查我国东北地区大型真菌资源。[方法] 采集大型真菌标本,对其形态进行详细的观察和描述,提取DNA,测定rDNA ITS序列,基于最大似然法和贝叶斯法构建系统发育树。[结果] 2019–2020年在吉林省延边朝鲜族自治州敦化市采集的标本中,有6份标本为密执安托光柄菇V.michiganensis,该种真菌此前未在我国发现。在系统发育分析中,采自我国的密执安托光柄菇V.michiganensis与该种的模式标本聚为一个分支。[结论] 密执安托光柄菇V.michiganensis为中国新记录种。 相似文献
9.
10.
11.
In this report we describe the three species in Lepiota sect. Lepiota occurring in tropical China. Lepiota attenuata is a new species and is characterized by a pileus with brownish yellow squamules and radially sulcate striate margin, penguin-shaped spores that are distinctively narrowed toward the apex and inflated submoniliform or catenulate elements in the pileus covering. We compared the type specimens of L. metulispora and L. thrombophora with tropical Chinese specimens; both taxa occur in the study area. Phylogenetic relationships among the tropical Chinese species and other closely related species in the genus were inferred based on DNA sequences of the nuclear ribosomal genes (ITS, LSU and IGS) and the mitochondrial small ribosomal RNA gene (mtSSU). 相似文献
12.
13.
报道了一指隔孢属(Dactylella)新种:粗壮指隔孢(DactylellacrassaZ.Q.Miao,L.P.Lei&X.Z.Liu)。该新种是在进行云南食线虫真菌调查时发现的,它能产生典型的大小两种分生孢子,将大小分生孢子分别挑单孢培养,仍能同时产生大小两种分生孢子;分生孢子梗粗壮,全壁芽殖式产孢和分枝;捕食器官为螺旋状菌丝分枝组成的三维网。研究标本保存于中国科学院微生物研究所真菌标本室(HMAS)。 相似文献
14.
从El Avila国家公园热带云雾森林中发现了绿散胞盘菌属的一个新种。它以其小型的子囊和子囊孢子、椭圆-S型-棒状的子囊孢子以及覆盖于外囊盘被菌丝表面的绿褐色胶化层为显著特征,并与该属已知种相区别。 相似文献
15.
Phylogenetic analyses based on nLSU and ITS sequence data indicate that the sequestrate genus Gigasperma is polyphyletic. Gigasperma cryptica, which is known only from New Zealand, has affinities with the Cortinariaceae whereas G. americanum and two additional undescribed taxa from western North America are derived from Lepiota within the Agaricaceae. The three North American taxa appear to be recently evolved and are closely related. They occur in similar environments and form a well supported clade indicating that adaptive radiation has occurred within this group of fungi. An independent genus with sequestrate fructifications, Cryptolepiota is proposed to accommodate the three species in this clade. Cryptolepiota microspora and C. mengei are described as new, and G. americanum is transferred to Cryptolepiota. Gigasperma cryptica is illustrated and compared with the species of Cryptolepiota. 相似文献
16.
Nitaro Maekawa 《Mycoscience》1997,38(1):71-73
Ypsilonidium bananisporum sp. nov. belonging to Ceratobasidiales is described and illustrated. This fungus has all the characteristics of the genusYpsilonidium including reticulate-hypochnoid basidiomes, broad hyphae branching at right angles, broadly clavate basidia with two sterigmata,
and basidiospores germinating by repetition. It differs from all hitherto known species in the genus by producing suballantoid
to banana-shaped basidiospores, measuring 19.5–22×5.5–6 μm.
Contribution No. 314 of the Tottori Mycological Institute. 相似文献
17.
A new fungus collected from submerged wood in Costa Rica and Ecuador has ascostromatic ascomata with fissitunicate asci and lacks pseudoparaphyses, characters that place it in the Dothideaceae (Dothideales). It is unusual in the order because it has white ascomata. Based on other morphological characters however this fungus could not be accommodated in any existing genus in the Dothideaceae and it is described herein as a new genus and species, Lucidascocarpa pulchella. These morphological features are characteristic of L. pulchella: ascomata glistening, white, each with a long, periphysate neck; a membranous peridium composed of 5-7 thin-walled, hyaline cells; pseudoparaphyses absent; asci fissitunicate, clavate, eight-spored; ascospores seven-septate, hyaline, multiguttulate, verruculose, surrounded by a large, regular, gelatinous sheath. 相似文献