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茯苓是一种寄生真菌,常寄生在赤松或马尾松树的根部,在松木上菌体开始为白色,渐变淡褐色,鲜时质软,干后坚硬,形似球形、扁球形、长圆形或不规则块状,大小不一,表面淡灰棕色或黑褐色,断面近外皮处带粉红色,外表薄而粗糙,有皱纹或沟,破开后周围淡棕色或粉红色,内部白色细腻。茯苓喜温暖通风和干燥环境,土壤以疏松和排水良好的砂质壤土为好。砂砾土和积水潮湿的粘土或黑泥土均不宜培植,多生长于海拔800米至1500米之间,年平均气温在17℃左右,年降雨量1000—1200毫米,无
Poria is a parasitic fungus, often parasitic in the roots of Pinus sylvestris or Masson pine, bacteria in the pine began to white, gradually pale brown, fresh soft time, dry hard, shaped like a ball, oblate, oblong or not Regular lumps, sizes, surface grayish brown or dark brown, near the skin with a pink section, the appearance of thin and rough, wrinkled or ditch, broken open around the light brown or pink, the internal white and delicate. Poria hi warm and ventilated and dry environment, soil with loose and well drained sandy loam as well. Gravel soil and water moist clay or black soil should not be cultivated, more than 800 meters in the growth of 1500 meters above sea level, the annual average temperature at about 17 ℃, the annual rainfall of 1000-1200 mm, no