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The aerial algae generally refers to life in the trunk , and branches of the surface or the surface of the rocks, stones , soil , surface and artificial building algae , they need moisture from the sky, rain and steam . Shusheng of algae belonging gas algae a aerial algae living on the surface of the trunk , and branches of this group of algae . Shanghai is located in the Yangtze River Delta , the leading edge belongs to the north subtropical monsoon climate , mild and humid climate , tree trunks and branches the surface easily epiphytic lot of algae . This study during the period from February 2009 to December 21 sampling points of the 17 districts in Shanghai epiphytic algae specimen collection , the samples involved in the research environment , including industrial areas, parks , scenic areas and culture , education , living areas , etc. , more than 400 specimens were collected . Analysis found that green algae 17 genera and 28 species belonging to two classes, 7 orders, 11 families were identified . In these species , a new record in China 4 4 species were Dictyochloropsis splendida Geitler, Chlorokybus atmophyticus Geitler, Apatococcus constipates Printz, the terrestrial fine chain algae Leptosira terricola ( Bristol ) Printz . In addition, this study did a brief analysis of the ecological distribution of tree raw green algae . Found that they are affected by the impact of the regional climate , temperature , and atmospheric environment is not obvious , most of the species are distributed in many samples , but small environmental relations within the bark of survival and their environment and samples more closely . The air is humid , rough bark fissures environment , many kinds of filamentous algae advantage, also associated with a small amount of spherical algae ; air is humid, less bark fissures , many kinds of filamentous , spherical algae are distributed ; in the air drying, and a relatively smooth bark environment , few species dominant spherical algae ; air dried bark rough fractured environment , few species , filamentous, spherical alginic are distributed . At the same time , the study found that the the orange algae atmosphere sensitive species , can further explore the instructions on the atmospheric environment . Tree algae plants as one group of important habitats aerial algae , but the starting time of the domestic research later research outcomes also less . For the first time Shanghai Shu-Sheng green algae classification and ecological research , and to provide some basic information for the diversity of our tree algae resources and further ecological research .
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