一、发现 1989年元月笔者在会稽山深处见到一棵高约5m 的榆树,树干地表部呈卵圆形,宽约13cm,离地30cm处正圆略扁,呈 S 弯曲后径直向上。干身自下而上渐细,离地50cm 处有一枯梢。所异者,该榆“肚子”下还有一小榆与之紧挨着,间隔3cm,上升28cm 后与大榆合二为一。二榆上、下、右、后另有若干枯梢,高耸的树冠之下无一枝桠(图1)。二、桩形分析下山时的树桩形态是:主干下端水平宽23cm,左薄右厚(自然生相对应为上薄下厚),截面几何形状为“小圆、大圆加二直线”。顶部直径6cm。副干与主干形状基本一致。两干自然吻合,都约长20cm。全桩总高93cm,两干 First, found that in January 1989 I saw in the depths of Huiji Mountain, about 5m tall elm trees, the surface of the trunk was oval, width 13cm, 30cm from the ground is a little round, slightly bent S was straight . Dried body tapering from the bottom, 50cm from the ground there is a withered tip. The difference, the elm “belly ” there is a small elm next to it, at an interval of 3cm, up 28cm after the integration with the big elm. Two elm on, under, right, then there are a number of wilderness, towering under the crown without a 桠 (Figure 1). Second, pile-shaped analysis of the stump down the mountain is: the trunk of the horizontal width of 23cm, left thin right (natural students corresponding to the thin under the thick), the cross-section of the geometric shape of “small round, round plus two straight lines.” Top diameter 6cm. Vice trunk and trunk shape is basically the same. Two dry naturally coincide, are about 20cm long. The pile total height 93cm, two dry