Notes on the biology, ecology, and use of a small Amazonian palm : LEPIDOCARYUM TESSMANNII
Notes on the biology, ecology, and use of a small Amazonian palm : LEPIDOCARYUM TESSMANNII
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关于亚马逊小棕榈树的生物学、生态学和用途的注释：LEPIDOCARYUM TESSMANNII
DOI：
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发表时间：
1987
期刊：
影响因子：
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通讯作者：
K. Mejía
中科院分区：
文献类型：
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作者：
F. Kahn;K. Mejía
Lepidocaryum tessmannii Burret是一种小棕榈，在秘鲁亚马逊地区的一些热带雨林的林下植被中非常丰富（图1）。这个物种在当地被称为“irapay”。它是一种簇状棕榈，茎细长，直径不超过3-4厘米，高不超过6米。它的叶子是掌状的，就像它的巨大亲戚，毛里求斯的叶子一样，但是它们只有4节插入1.2米长的叶柄末端。每根轴有4到7片同生叶。本属的所有种都是雌雄异株。“irapay”分布在秘鲁亚马逊地区；向东，它没有到达亚马逊中部。这种小棕榈树以其不同寻常的无性繁殖生长方式、所调查森林的林下植被密度、受土壤排水影响的地形分布以及用作茅草屋顶而闻名。我们的观测是在乌卡亚利河上Jenaro Herrera村附近的森林中进行的（4 ' 55 ' 18 " Lat S; 73 ' 40 ' 36 " Long W），位于伊基托斯西南约200公里处。海拔高度为125米。气候属热带湿润型，年降雨量约2.9米，平均气温26℃。
Lepidocaryum tessmannii Burret is a small palm which is abundant in the understory of some tropical rain forests in the Peruvian Amazonia (Fig. 1). This species is locally known as “irapay.” It is a clustering palm with slender stems, not more than 3-4 cm in diameter and 6 m in height. The leaves are palmate, like those of its giant relative, Mauritia $exuosa L.f., but they have only 4 segments inserted at the end of a 1.2 m long petiole. Each axis bears 4 to 7 contemporaneous leaves. All the species of the genus are dioecious. The “irapay” is distributed throughout Peruvian Amazonia; eastwards, it does not reach central Amazonia. This small palm is remarkable for its highly unusual growth pattern with vegetative propagation, its density in the understory of the forests surveyed, its topographic distribution which is affected by soil drainage, and its use for thatching house roofs. Our observations were made in forests near the village of Jenaro Herrera on the Ucayali River (4’55’18” Lat S; 73’40‘36” Long W), about 200 km southwest of Iquitos. The height above sea level is 125 m. The climate belongs to the tropical humid type with about 2.9 m annual rainfall and an average temperature of 26” C.