喙核桃Annamocavya Sineusis(Dode)Levoy是近年在通道侗族自治县发现的省内的一个新分布种,发现后,我们曾对它的生态及生长规律作了调查研究,现将情况报告如后; 形态及分布喙核桃属胡桃科,落叶乔木,高36米,胸径达125厘米,树皮灰白色,不开裂;幼枝粗壮,有棱,1—2年生枝条褐色,无毛,有黄褐色皮孔;叶互生,奇数羽状复叶,长30—40厘米,总叶柄圆柱形,小叶7—9(～15)枚,对生,近草质,全 Beak walnut Annamocavya Sineusis (Dode) Levoy is a newly distributed species in the province discovered in Tongdao Dong Autonomous County in recent years. After it was discovered, we conducted a survey on its ecology and growth pattern, and the situation is reported as follows; Beak walnut genus Branch, deciduous tree, 36 meters high, diameter 125 cm, bark gray, not cracking; young branches thick, ribbed, 1--2 year-old branches brown, glabrous, with yellowish brown lenticels; leaves Alternate, odd pinnate, 30-40 cm long, total petiole cylindrical, leaflets 7-9 (~ 15) pieces, opposite, grass quality, all