A taxonomic history of Japanese endemic <Emphasis Type="Italic">Fritillaria</Emphasis> (Liliaceae)

To resolve the current taxonomic status of Japanese endemic Fritillaria L., their taxonomic history is retraced. All taxonomic papers are evaluated, together with more recent genetic observations. To determine the wider acceptance of various taxonomic revisions, a range of Floras are also examined. It is evident that articles published in Japanese have not been fully considered by the wider botanical community. Moreover, rivalries between the Tokyo and Kyoto schools of botany and an over-reliance on herbarium material by many authors have undermined the current classification of the Fritillaria ‘japonica group’.     

掌叶橐吾地理分布的订正及对我国植物志书中一些明显问题的述评

指出《中国植物志》77(2)中掌叶橐吾(Ligularia przewalskii)在江苏有分布的记载极可能是将文献中的"Kansu"(甘肃)误为"Kiangsu"(江苏)的结果。该种目前仅知分布于甘肃、青海、内蒙古、宁夏、陕西、山西、四川,在江苏决无分布。这一不经意的疏忽而引起的错误后来不断出现在我国出版的有关植物志书中。对我国植物志书尤其是省级植物志书存在的突出问题及其他一些相关问题进行了述评。     

State and tendencies in development of floras of man-transformed ecosystems

Basing on published data, authors estimate the current state and tendencies in the development of man-transformed floras. Special attention is given to the flora of cities and such man-transformed habitats, as open-cast mines, dumps, hydrotechnical constructions and railway embankments. Floras of man-made forests and plant communities of cultivated lands were also analyzed. Structure of urbanized landscapes are considered as the aggregates of man-transformed landscapes with fragments of natural vegetation. Floras of urbanized areas are characterized by high species diversity, inconsistency of species composition and diminishing influence of natural vegetation characteristic for particulate zone. Species variety and structure of floras of man-transformed habitats depend on specificity of substrate, geographical latitude, neighboring natural communities and intensity of technical plants exploitation. In the floras of railway embankments species of 10 main families are more abundant then those in natural ecosystems of the same latitude. Floras of man-made forests are characterized by very high species diversity, this type of habitats plays the main compensating role. Analysis of segetal floras reveals the replacement of oligotrophic weeds by eutrophic ones and the increase in diversity of Poaceae species.     

Triassic Conifers as the basis for stratigraphical correlation

Floras with abundant Conifers have been recentlydiscovered in Siberia and China. They are correlated with the floras of the Voltzia sandstones of Western Europe.