中国桂林岩溶洞穴苔藓植物研究

对采自中国广西桂林17个岩溶洞穴的192份苔藓植物标本进行研究,报道了洞穴苔藓13科19属28 种,其中含广西苔藓植物新记录16种。野外观察表明,桂林岩溶洞穴苔藓植物主要分布于洞穴洞口0～32m 弱光带范围内。三种丛集型藓类植物:净口藓、钩喙净口藓和东亚泽藓参与岩溶洞穴洞口带钙华沉积。     

四川省藓类植物新记录

在对四川省第一高峰贡嘎山的野外调查和1 000余份采集标本鉴定的基础上,现已知贡嘎山有藓类植物40科,133属,321种.其中,隶属于10科,12属的12种为四川省苔藓植物新记录种.该文就新记录种进行详细报道,为中国和四川省的苔藓植物区系研究提供新的资料.     

木林子国家级自然保护区苔藓植物物种与区系研究

基于野外调查、采集标本和查阅文献,对木林子国家级自然保护区苔藓植物物种及区系特点进行研究。结果显示:该保护区苔藓植物共有64科121属292种,其中,苔类28科38属88种,藓类36科83属204种。该保护区共有湖北新记录科2科、新记录属9属、新记录种73种。该保护区苔藓植物区系成分多样,有11个区系类型,以温带成分为主(占30.89%)、东亚成分次之(占18.92%)。相比清凉峰、大巴山、十万大山和佛坪4个国家级自然保护区,木林子呈现出科多种少的特点,物种分化程度更高。木林子保护区与清凉峰的苔藓植物组成相似度最高,与佛坪相似度最低。该研究结果从苔藓植物多样性的角度佐证了清江流域物种分化程度较高的观点,为丰富木林子国家级自然保护区苔藓植物和湖北省苔藓植物提供了基础资料。     

黔桂黑叶猴自然保护区苔藓植物初步研究

本文报道中国西南黔桂两省区三个黑叶猴自然保护区内石灰岩苔藓植物９１种,并对其生境进行了描述。在上述石灰岩苔藓植物中,包含２１种贵州新记录,１３种广西新记录,６种中国西南新记录和１种中国新记录。     

广东内伶仃岛自然保护区的苔藓植物

报道广东内伶仃岛自然保护区的苔藓植物共１９ 科、３４ 属、６１ 种, 其中藓类１３ 科、２６属、５０ 种, 苔类６ 科、８ 属、１１ 种。全缘疣鳞苔（ Ｃｏｌｏｌｅｊｅｕｎｅａ ｓｃｈｗａｂｅｉ） 等３ 种苔类和拟阔叶小石藓（ Ｗｅｉｓｉａ ｐｌａｔｙｐｈｙｌｌｏｉｄｅｓ） 等１０ 种藓类为广东省新记录。分析了保护区内的苔藓植物区系特点, 并与车八岭、黑石顶、鼎湖山及南岭自然保护区的苔藓植物区系进行了比较。研究表明, 内伶仃岛的苔藓植物区系由于受地理位置及地形特征的影响而具有一定的特殊性。     

山东昆嵛山苔藓植物多样性及区系特征

通过对采自山东昆嵛山的4000余号苔藓植物标本进行鉴定,发现昆嵛山分布有苔藓植物56科131属318种,包括山东新记录种69种。在昆嵛山的苔藓植物中,苔类植物有22科28属41种,藓类植物有34科103属277种。昆嵛山苔藓植物区系主要由青藓科（45种）、真藓科（33种）、丛藓科（31种）、灰藓科（24种）、绢藓科（18种）、曲尾藓科（15种）等一些大科组成。单种属和寡种属数量较多,但特有现象不明显。土生和石生群落优势明显,水生和树生群落缺乏。区系地理成分复杂,分布类型多样,温带成分优势明显,但也具有一定的热带成分。本研究旨在进一步促进山东苔藓植物研究,并与现代苔藓植物学的发展接轨,也为中国苔藓植物的研究提供新的资料。     

中国云南纳板河国家级自然保护区苔藓植物研究

在野外调查和标本鉴定的基础上,首次报道了中国云南纳板河流域国家级自然保护区有苔藓植物59科157属385种3变种3亚种,包括中国大陆新记录种3种,云南新记录属2属,新记录种和亚种12种;西双版纳地区新记录科4科,新记录属12属,新记录种140种.同时,对优势科属种组成及生境类型进行了初步分析,为我国热带地区苔藓植物区系研究提供了丰富资料.     

浙江省清凉峰自然保护区苔藓植物区系成分研究

通过对2013~2014年于清凉峰自然保护区采集的1 500余份苔藓植物标本进行鉴定和文献研究,统计分析了清凉峰自然保护区苔藓植物种类组成,区系地理成分及特点,并对该地区与相邻8个地区藓类植物的丰富度系数比较和相似性系数比较,以明确该地区苔藓植物不同的生态分布类型,揭示浙江清凉峰保护区苔藓植物多样性的变化规律。结果表明:(1)浙江省清凉峰国家自然保护区苔藓植物共有62科143属337种(包括3个变种),其中苔类植物20科29属49种,藓类植物42科114属288种。(2)藓类植物的优势科9个、优势属16个。(3)该地区苔藓植物区系成分主要以东亚成分为主(占总种数41.84%),温带成分次之(占总种数28.57%),热带成分再次之(占总种数20.74%)。(4)浙江清凉峰自然保护区苔藓植物区系与浙江省境内的金华山、大盘山、天目山和凤阳山的亲缘关系较为密切。(5)浙江清凉峰自然保护区苔藓植物生态分布类型复杂多样,以石生类型(占总标本数的47.09%)最多,其次为岩面土生(占总标本数的27.68%)和土生(占总标本数的12.85%)类型。     

贵州红水河谷地区苔藓植物区系研究

对贵州红水河谷地区的500余号苔藓植物标本进行了调查、采集和分类鉴定,得到苔藓植物36科,78属,204种(包括8亚种4变种和1变型)。其中藓类植物23科60属163种,苔类植物13科18属41种。为贵州增加新记录5种。划为13种类型。其中具热带性质的区系成分最丰富,占总数的38.02%,构成该区苔藓植物区系成分的主体;具温带性质的成分占总数的33.85%;东亚成分、特有成分、东亚-北美成分占该区的1.56%。选择9个地区,通过属和种的相似性系数全面比较,表明该地区与同纬度茂兰自然保护苔藓植物的相似性最高,关系最密切;与低纬度鼎湖山的相似性较高,关系较近;与高纬度小五台山和长白山相似性最低,关系最远。还统计了各地区的植物区系谱,分析该地区与其它地区的藓类植物区系关系。并着重就该区的热带边缘性的特点进行了讨论。     

来自四川贡嘎山的中国藓类植物新记录

报道了采自四川贡嘎山地区的3个藓类植物新记录种,包含尖叶梳藓（Ctenidium malacodes）、小卷叶藓（Ulota crispula）和居间卷叶藓（U. intermedia）。所有凭证标本均存放于中国科学院植物研究所标本馆（PE）。提供了详细的形态描述和图片,并讨论了它们与邻近种的主要区别。本次调查发现贡嘎山地区的苔藓植物多样性很高,非常值得继续深入地调查与研究。     

Reinvestigation on species richness and environmental correlates of bryophytes at a regional scale in China

Aims The aim of this article is 4-fold: (i) to update species richness of bryophytes for each of the Chinese provinces based on the most current knowledge on distributions of bryophytes in China, (ii) to provide a set of analyses based on the updated species richness data and the environmental variables used in a recent article on species richness of bryophytes in China, (iii) to expand the analysis presented in the recent article by relating species richness of bryophytes to over 15 additional climatic variables and (iv) to determine the degree to which the relationships between bryophyte species richness and environmental variables that were reported in the recent article might have been biased.Methods Over 180 literatures with national, provincial and local species lists of bryophytes in China were used in this study. Taxonomy and nomenclature of bryophytes in China were standardized according to The Plant List. Correlation and regression analyses were used to examine the relationships between species richness or species density of bryophytes in Chinese provinces and environmental variables.Important findings On average, each Chinese province possesses 700.6 species of bryophytes, which is 112.1 species more than previously reported. With the updated species richness data reported in this study, stronger relationships between species richness of bryophytes and environmental variables have been found, compared with those found in a recently published study for China. When single environmental variables were considered, precipitation-related variables were, on average, more strongly correlated with species richness and species density than were temperature-related variables. Environmental variables were on average correlated more strongly with species density than with species richness of bryophytes at the regional scale in China. Our study showed that measures quantifying the average and variation of environmental conditions within each Chinese province explained 82.7% and 71.1% of the variation in species richness of liverworts and mosses, respectively, and explained 86.5% and 70.7% of the variation in species density of liverworts and mosses, respectively.     

北京东灵山主要森林植被中苔藓植物的物种多样性

通过对北京东灵山地区32个样地植被及苔藓植物的调查,对主要森林植被中苔藓植物物种多样性进行分析。结果表明:东灵山主要森林植被中共有苔藓植物16科33属79种,优势科为青藓科(Brachytheciaceae)和绢藓科(Entodontaceae)等。密叶绢藓(Entodoncompressus)、小牛舌藓(Anomodon minor)等为优势种。地面生苔藓植物物种丰富度以落叶阔叶混交林中最大,白桦林中最小,苔藓植物群落相似性以辽东栎林与落叶阔叶林之间最高,以山杨林与油松林之间最低。树附生苔藓植物物种丰富度以落叶阔叶混交林中最大,油松林中最小;苔藓植物群落相似性以油松林和山杨林之间最高,华北落叶松林与白桦林之间最低。地面生和树附生苔藓植物多样性与林型、树种及其所形成的林内微环境相关。     

A survey of bryophytes for presence of cholinesterase activity

The neurotransmitter acetylcholine (ACh) is present in plants including bryophytes. The first biochemical evidence for ACh hydrolysis by enzyme cholinesterase (ChE) in bryophytes is presented. Thirty-nine species belonging to 16 families of bryophytes were surveyed for ChE activity. Thirty species belonging to 13 families showed ChE activity. Of the bryophytes tested, Anoectangium bicolor showed the highest ChE activity. Widespread distribution of ChE in bryophytes indicates their suitability as a system to study the role of ACh in plants.     

The effects of windthrow on plant species richness in a Central European beech forest

The effects of soil disturbance caused by the uprooting of a single or a few canopy trees on species richness and composition of vascular plant species and bryophytes were examined in a temperate beech forest (Fagus sylvatica) in northern Germany. We recorded the vegetation in 57 pairs of disturbed and adjacent undisturbed plots and established a chronosequence of mound ages to study the effect of time since microsite formation on plant species richness and composition. We found significant differences in plant species richness and composition between disturbed and adjacent undisturbed plots. Species richness of both vascular plants and bryophytes was higher in the disturbed than in the undisturbed plots, but these differences were more pronounced for bryophytes. We suggest that three main factors are responsible for this differential response. The availability of microsites on the forest floor that are suitable for the recruitment of bryophytes is lower than for vascular plants. Establishment of bryophytes in disturbed microsites is favoured by a greater abundance of propagules in the close vicinity and in the soil of the disturbed microsites, as well as by a greater variety of regeneration strategies in bryophytes than in vascular plants. Time since mound formation was a major factor determining plant species richness and composition. A significant decrease in the mean number of species was found from young mounds to intermediate and old mounds. However, differences were observed between vascular plants and bryophytes in the course of changes through time in species richness and composition. A large number of exclusive and infrequent vascular plant species was observed on young mounds, among them several disturbance specialists. We suggest that the establishment of many vascular plant species was infrequent and short-lived due to unfavourable light conditions and a low abundance of propagules. By contrast, the development of a litter layer was the main reason for the decreased mean number of bryophytes on old mounds. Our study supports the view that groups of species differing in important life history traits exhibit different responses to soil disturbance.     

Is vascular plant species diversity a predictor of bryophyte species diversity in Mediterranean forests?

This study aimed to (i) investigate the congruence among the species composition and diversity of bryophytes and vascular plants in forests; (ii) test if site prioritization for conservation aims by the maximization of the pooled number of vascular plant species is effective to maximize the pooled number of bryophyte species. The study was performed in six forests in Tuscany, Italy. Four-hundred and twenty vascular plant species (61 of which were woody) and 128 bryophyte species were recorded in 109 plots. Despite the good predictive value of the compositional patterns of both woody plants and total vascular with respect to the compositional pattern of bryophytes, the species richness of the latter was only marginally related to the species richness of the former two. Bryophyte rare species were not spatially related to rare plant species and neither coincided with the sites of highest plant species richness. The species accumulation curves of bryophytes behaved differently with respect to those of woody plants or total vascular plants. Reserve selection analysis based on the maximization of the pooled species richness of either woody plants or total vascular plants were not effective in maximizing the pooled species richness of bryophytes. This study indicates that species diversity of vascular plants is not likely to be a good indicator of the bryophyte species diversity in Mediterranean forests.     

湖南小溪自然保护区树附生苔藓植物研究

采用水平拉线法调查了小溪国家级自然保护区中树附生苔藓植物的种类,并对其进行了地理成分的分析.研究结果表明:该地区附生苔藓植物共18科26属共43种,其中苔类植物6科6属6种,藓类植物12科20属37种;树附生苔藓植物区系成分以东亚成分为主,其次为热带亚洲成分,再次为旧世界温带成分及温带亚洲成分.     

Moss Regeneration for Fen Restoration: Field and Greenhouse Experiments

Fen bryophytes are an important component of natural fens and should be included in fen restoration projects. The goal of this study was to examine the regeneration capabilities of nine bryophytes common to moderate-rich and poor fens in North America. A greenhouse experiment was carried out to examine the limitations and optima for the regeneration of fen bryophytes under different light and water regimes. A field experiment tested these same bryophytes in the presence of three potential nurse-plants. In the greenhouse experiment, the presence of shade increased regeneration success for eight out of nine species. A high water level was ideal for the regeneration of the majority of species tested. In the field experiment, Sphagnum species had the highest regeneration, and all species had higher regeneration under a dense canopy of herbaceous plants. Fen bryophytes show good potential for use in restoration projects because the tested bryophytes regenerated well from fragments.     

镜泊湖世界地质公园火山口地下森林苔藓植物区系

镜泊湖世界地质公园火山口孕育了罕见的原始地下森林，本研究为完善中国火山生态系统苔藓植物区系地理起源提供重要资料。基于前期野外调查、标本采集和物种鉴定数据，已知苔藓植物53科126属292种，采用分层聚类分析和主成分分析方法探讨区系地理特点。结果表明：(1)镜泊湖火山口地下森林苔藓植物单种属和寡种属占绝对优势，共106属(占总属数84.13%)152种(占总种数52.05%)。(2)区系地理成分共11种，北温带分布占主体(49.12%)，东亚分布次之(21.55%)，中国特有分布第三(8.48%)。(3)地下森林中国特有苔藓植物可能沿“北线”以山脉为通道进行传播。(4)镜泊湖火山口地下森林与镜泊湖火山熔岩台地苔藓植物区系相似性最高。此外，发现受威胁苔藓植物7种。总之，镜泊湖火山口地下森林苔藓植物区系的主要特点为起源古老，组成复杂，北温带性质明显，与东亚苔藓植物区系具有深厚的历史渊源，凭火山锥内部优越的微生境成为中国特有和珍稀濒危苔藓植物的避难所。     

紫金山国家森林公园苔藓植物多样性及其与环境关系研究

为深入了解紫金山国家森林公园苔藓植物资源,对南京紫金山展开苔藓植物野外调查,应用典范对应分析(CCA)研究苔藓植物分布与环境间关系。结果表明,调查中共记录苔藓植物23科37属65种,青藓科(Brachytheciaceae)、丛藓科(Pottiaceae)、羽藓科(Thuidiaceae)和绢藓科(Entodontaceae)为优势科(≥6种),绢藓属(Entodon)、青藓属(Brachythecium)、匐灯藓属(Plagiomnium)和真藓属(Bryum)为优势属(≥4种);苔藓植物生境以土生为主,树生较少;苔藓植物生活型以交织型和丛集型为主,占比分别达46.15%和35.38%;苔藓植物区系以温带和东亚成分为主,区系成分呈现明显过渡性;CCA排序结果表明,湿度、坡向和海拔是影响该区域苔藓植物分布的主要环境因子。