兰花根外敷治疗韧带扭伤308例

目的对湖北京山县大洪山的野生蕙兰(Cymbidium faberi Rolfe)植物群落进行调查，以期为蕙兰的保护提供科学支撑。方法通过样方法调查测量样地中蕙兰的地理坐标、海拔、坡向、坡度、郁闭度、盖度、土壤类型和群落物种组成。结果蕙兰群落物种丰富，44种维管束植物分属31科39属，其中高位芽植物种类最多，地下芽植物次之，层间有丰富的藤本和附生植物。乔木层多见柏科、壳斗科、棕榈科和松科，灌木层蔷薇科、樟科和紫金牛科较为多见；蕙兰为群落下层优势种，区系特征涉及热带、亚热带、温带分布型，有北亚热带向南暖温带过渡的明显趋势。结论蕙兰适合生长在水热充足、林间有散射光、郁闭度适宜、通风条件好、有较厚落叶层的酸性土壤中。

Phenanthrene derivatives from Cymbidium great flower marie laurencin and their biological activities

PurposesThe wild Cymbidium faberi Rolfe community in Dahong Mountain, Jingshan County, Hubei Province was investigated in order to provide scientific support for the conservation of C. faberi.MethodsThe geographical coordinates, altitude, aspect, slope, canopy, coverage, soil type and community species composition of C. faberi were investigated and measured by means of sampling method.ResultsThere were 44 vascular plants belonging to 31 families and 39 genera in C. faberi community, among which the phanerophyte were the most, the geophytes were the second, and there were abundant lianas and epiphytes among the layers. C. faberi is the dominant species in the lower layer of community. The tree layer is commoner in Cupressaceae Bartling, Fagaceae, Palmae and Pinaceae, and shrub layer is commoner in Rosaceae, Lauraceae and Myrsinaceae. The C. faberi is the dominant species in the lower layer. The floristic characteristics are related to the tropical, subtropical and temperate distribution patterns, and there is an obvious trend of the transition from the north subtropics to the south warm temperate zone.ConclusionsIt was found that C. faberi was suitable for living in acidic soil with abundant water and heat, scattered light, suitable canopy density, good ventilation and thick deciduous layer.