Problems in the Field of Systematics and Investigation of Conifers in Russia  

作　　者：Larisa Orlova Gennady Firsov 

机构地区：[1]Department of Herbarium, Botanic Garden of the Komarov Botanical Institute of Russian Academy of Sciences, Saint-Petersburg197376, Russia

出　　处：《Journal of Agricultural Science and Technology(B)》2013年第12期880-886,共7页农业科学与技术（B）

摘　　要：The largest and most important family in Russian conifers is Pinaceae （27-29 species）. The most important problems in the field of systemitics concern some critical taxa. In the result of author＇s research, the new signs of vegetative and reproductive organs have been checked out and elaborated. It leads to the clarifying of new taxonomic status and geographical distribution of certain critical taxa. A set of species are threatened and need special measures which are included into the Red Data Book of Russian Federation. for their conservation. There are 13 species and one variety

关 键 词：Conifers of Russia PINACEAE SYSTEMATICS ARBORICULTURE conservation. 

分 类 号：S791.05[农业科学—林木遗传育种] N94[农业科学—林学]