采用线路与标准地相结合的调查方法,对湖南崀山丹霞地貌区维管植物的区系特征(组成、主要类群和种子植物属的分布区类型)进行了统计分析,并与舜皇山非丹霞地貌区维管植物区系特征进行了对比。崀山丹霞地貌区有维管植物185科689属1 464种...采用线路与标准地相结合的调查方法,对湖南崀山丹霞地貌区维管植物的区系特征(组成、主要类群和种子植物属的分布区类型)进行了统计分析,并与舜皇山非丹霞地貌区维管植物区系特征进行了对比。崀山丹霞地貌区有维管植物185科689属1 464种(含变种),其中,蕨类植物25科49属84种,裸子植物5科8属8种,被子植物155科632属1 372种。蕨类植物和裸子植物绝大多数为种类数在10种以下的小科;被子植物中含30种以上的科有12个,种类数在50种以上的科为菊科(Compositae)、蔷薇科(Rosaceae)、蝶形花科(Papilionaceae)和禾本科(Gramineae);被子植物中含6种及6种以上的属有52属,种类数最多的是薹草属(Carex L.)(15种)。崀山丹霞地貌区种子植物属的分布区类型具有热带、温带分布交会的特点,热带成分、温带成分和中国特有成分分别占总属数(不包括世界广布型属)的47.62%、47.79%和4.59%,其中泛热带分布型属、热带亚洲分布型属、北温带分布型属、东亚-北美间断分布型属、东亚分布型属以及中国特有分布型属具有重要地位。崀山丹霞地貌区的植物区系具有古老残遗性和丰富的特有成分,分布有新宁毛莨(Ranunculus xinningensis W. T. Wang)和崀山唇柱苣苔(Chirita langshanica W. T. Wang)2个特有种。崀山丹霞地貌区的植物区系与舜皇山非丹霞地貌区具有种类相对丰富、热带和温带成分所占比例相近等共同特点,但各分布区类型所占比例以及中国特有成分的组成及数量有一定差异,且崀山丹霞地貌区维管植物属和种的丰富度低于舜皇山非丹霞地貌区(维管植物792属2 232种)。研究结果显示,崀山丹霞地貌区的生境狭窄,特有现象明显;丹霞地貌对种类分化、新物种形成、植物分布区类型比例和物种丰富度产生影响。展开更多
According to plant investigation in Xuzhou and Lianyungang of Jiangsu Province,seven species and two varieties belonging to eight genera of seven families are reported as new records in Jiangsu Province,viz.Aquilegia ...According to plant investigation in Xuzhou and Lianyungang of Jiangsu Province,seven species and two varieties belonging to eight genera of seven families are reported as new records in Jiangsu Province,viz.Aquilegia viridiflora Pall.var.atropurpurea(Willd.) Finet et Gagnep.,Ulmus davidiana Planch.var.japonica(Rehd.) Nakai,Celtis cerasifera C.K.Schneid.,Amaranthus polygonoides L.,A.tenuifolius Willd.,Sida spinosa L.,Salix paraplesia C.K.Schneid.,Styrax wuyuanensis S.M.Hwang and Symplocos chinensis(Lour.) Druce.In which,Sida L.is a new record genus in Jiangsu Province.Some of them are simply analyzed on resources,flora and distribution.展开更多
According to plant investigation on Yuntai Mountain in Lianyungang of Jiangsu Province,two genera,nine species and four varieties belonging to nine families are reported as new records in Jiangsu Province,viz.Pilea mi...According to plant investigation on Yuntai Mountain in Lianyungang of Jiangsu Province,two genera,nine species and four varieties belonging to nine families are reported as new records in Jiangsu Province,viz.Pilea microphylla(L.) Lieb.(Urticaceae),Thalictrum squarrosum Steph.ex Willd.and T.aquilegifolium var.sibiricum Regel et Tiling.(Ranunculaceae),Phedimus kamtschaticus(Fisch.) ′t Hart(Crassulaceae),Sorbus alnifolia var.lobulata Rehd.and Malus manshurica(Maxim.) Kom.ex Juzep.(Rosaceae),Chaerophyllum L.and C.villosum DC.(Apiaceae),Styrax japonica var.calycothrix Gilg and S.obassis Sieb.et Zucc.(Styracaceae),Paederia scandens var.tomentosa(Bl.) Hand.-Mazz.(Rubiaceae),Borreria G.Mey.and B.shandongensis F.Z.Li et X.D.Chen(Rubiaceae),Dendranthema potentilloides(Hand.-Mazz.) Shih.(Asteraceae),Allium taishanense J.M.Xu(Liliaceae).Some of them are simply analyzed on flora and distribution.展开更多
文摘采用线路与标准地相结合的调查方法,对湖南崀山丹霞地貌区维管植物的区系特征(组成、主要类群和种子植物属的分布区类型)进行了统计分析,并与舜皇山非丹霞地貌区维管植物区系特征进行了对比。崀山丹霞地貌区有维管植物185科689属1 464种(含变种),其中,蕨类植物25科49属84种,裸子植物5科8属8种,被子植物155科632属1 372种。蕨类植物和裸子植物绝大多数为种类数在10种以下的小科;被子植物中含30种以上的科有12个,种类数在50种以上的科为菊科(Compositae)、蔷薇科(Rosaceae)、蝶形花科(Papilionaceae)和禾本科(Gramineae);被子植物中含6种及6种以上的属有52属,种类数最多的是薹草属(Carex L.)(15种)。崀山丹霞地貌区种子植物属的分布区类型具有热带、温带分布交会的特点,热带成分、温带成分和中国特有成分分别占总属数(不包括世界广布型属)的47.62%、47.79%和4.59%,其中泛热带分布型属、热带亚洲分布型属、北温带分布型属、东亚-北美间断分布型属、东亚分布型属以及中国特有分布型属具有重要地位。崀山丹霞地貌区的植物区系具有古老残遗性和丰富的特有成分,分布有新宁毛莨(Ranunculus xinningensis W. T. Wang)和崀山唇柱苣苔(Chirita langshanica W. T. Wang)2个特有种。崀山丹霞地貌区的植物区系与舜皇山非丹霞地貌区具有种类相对丰富、热带和温带成分所占比例相近等共同特点,但各分布区类型所占比例以及中国特有成分的组成及数量有一定差异,且崀山丹霞地貌区维管植物属和种的丰富度低于舜皇山非丹霞地貌区(维管植物792属2 232种)。研究结果显示,崀山丹霞地貌区的生境狭窄,特有现象明显;丹霞地貌对种类分化、新物种形成、植物分布区类型比例和物种丰富度产生影响。
文摘According to plant investigation in Xuzhou and Lianyungang of Jiangsu Province,seven species and two varieties belonging to eight genera of seven families are reported as new records in Jiangsu Province,viz.Aquilegia viridiflora Pall.var.atropurpurea(Willd.) Finet et Gagnep.,Ulmus davidiana Planch.var.japonica(Rehd.) Nakai,Celtis cerasifera C.K.Schneid.,Amaranthus polygonoides L.,A.tenuifolius Willd.,Sida spinosa L.,Salix paraplesia C.K.Schneid.,Styrax wuyuanensis S.M.Hwang and Symplocos chinensis(Lour.) Druce.In which,Sida L.is a new record genus in Jiangsu Province.Some of them are simply analyzed on resources,flora and distribution.
文摘According to plant investigation on Yuntai Mountain in Lianyungang of Jiangsu Province,two genera,nine species and four varieties belonging to nine families are reported as new records in Jiangsu Province,viz.Pilea microphylla(L.) Lieb.(Urticaceae),Thalictrum squarrosum Steph.ex Willd.and T.aquilegifolium var.sibiricum Regel et Tiling.(Ranunculaceae),Phedimus kamtschaticus(Fisch.) ′t Hart(Crassulaceae),Sorbus alnifolia var.lobulata Rehd.and Malus manshurica(Maxim.) Kom.ex Juzep.(Rosaceae),Chaerophyllum L.and C.villosum DC.(Apiaceae),Styrax japonica var.calycothrix Gilg and S.obassis Sieb.et Zucc.(Styracaceae),Paederia scandens var.tomentosa(Bl.) Hand.-Mazz.(Rubiaceae),Borreria G.Mey.and B.shandongensis F.Z.Li et X.D.Chen(Rubiaceae),Dendranthema potentilloides(Hand.-Mazz.) Shih.(Asteraceae),Allium taishanense J.M.Xu(Liliaceae).Some of them are simply analyzed on flora and distribution.
