Study On The Mosses Flora And Biodiversity Of Fujian, China

Based on the specimens that collected from Tianbaoyan National Nature Reserve of Yong'an, Fujian and Junzifeng Nature Reserve of Fujian, and the mosses literature published by December of 2006, the checklist of Fujian mosses is given, the composition and mosses flora are analyzed, also the differences between Fujian and Jiangxi mosses are compared. The checklist contains 613 identified specific and subspecific names, assigned to 46 families and 206 genera, which includes 7 new records in Fujian.1. Families contained 10 species or more are considered as dominant families. Pottiaceae is topping the 19 preponderant families with 65 species, followed by Dicranaceae with 53 species and Hypnaceae with 45. The dominant families which including temperate distribution types, worldwide distribution type and tropical distribution types, contained 142 genera and 491 species, represent 41.30% of the entire families, 68.93% of the genera, and 80.10% of mosses species in Fujian, China.2. 14 dominant genra that contained 10 or more species make up 29.69% of mosses species in Fujian, with Fissidens ahead of all the others with 28 species. Meanwhile, the genera contained few species or only one species represent above 86% of the entire moss genera in Fujian. 93 genera in Fujian have only one speices, indicated the complexity of genera composing of Fujian mosses.3. Based on the geographical distribution throughout the world of all Fujian's mosses species, according to Wu and Wang's (1983) and Wu's (1991) areal-types of seed plants, 13 areal-types of mosses in Fujian, China were first proposed. East Asia areal-type predominate all these elements with 186 species, representing 32.29% of the entire species excluded Cosmopolitan, therefore shows the connection between mosses flora of Fujian and Japan, as well as that of Fujian and Himalayas. The tropical areal-types, including Pantropic, Tropical Asia and Tropical America disjuncted, Old World tropic, Tropical Asia and Tropical Australasia, Tropical Asia to Tropical Africa, along with Tropical Asia, represent 30.04% of entire species excluded cosmopolitans. Together with temperate areal-types, which including North Temperate, East Asia and North America disjuncted, Old World Temperate, Temperate Asia, East Asia, and Endemic to China, therefore representing 69.96% of entire species excluded cosmopolitans. The temperate areal-types dominated the Fujian mosses flora.4. The checklist includs 7 new records in Fujian, Anomodon viticulosus (Hedw.) Hook. & Tayl,Atrichum yakushimense (Hor.) Mizushima,Ditrichum cylindricum (Hedw.) Grout,Neonoguchia auriculata (Copp. ex Thér.) S.-H. Lin,Pelekium versicolor (Hornsch. ex Muell.) Touw,Racopilum ferriei Thér.,Schistomitrium nieuwenhuisi Fleisch, belonged to 7 genera, 7 famalilies.5. The moss flora of Fujian seems related to the moss flora of Jiangxi, while both carried their own characters.In general, Fujian reserves a higher level of moss biodiversity. The richness index was used to decrease the influence caused by different area covers, and the indices of Fujian and Jiangxi are 3.84 and 3.91 on family level respectively, while on genera level are 8.67 and 8.32 respectively, and when it comes to species, are 52.28 and 40.09 respectively.A certain relation can be told based on the similarity between Fujian and Jiangxi mosses. In moss families of Fujian and Jiangxi, the similarity indices are above 88%, while still more than 66% in genera. And the values of ISJ and ISC are 42.84% and 59.98% respectively on species level. The similarity of species from Fujian and Jiangxi reached 52.57% after excluded Cosmopolitan, hint at certain kinds of intercommunion within Fujian and Jiangxi mosses, which could both occur at long distance-spreading abroad or nearby diffisions.The somewhat strong East Asia character shows the continuity within Fujian and Jiangxi mosses flora, although they differed in other ways. The North Temperate were unlikely to be underestimate, they reached 28.79% of entire species excluded Cosmopolitan in Jiangxi, very close to East Asia. As take tropical areal-types and temperate areal-types under comparison, the former one shows a general decrease from Fujian to Jiangxi, while the latter one turns the other way round. The role Fujian play on the migration of bryophytes from Himalayas passing through Hengduan Moutains to Taiwan, which is as an important node, make it a worthwhile place for further research in moss biodiversity.