Monograph of Bactris (Palmae) for Flora Neotropica

巴氏棕榈属是最大的新热带棕榈属之一，也是分类学上最鲜为人知的属之一。这项研究的目的是提供一个包含约40种的三个组的分类处理，作为对新热带植物全属的初步修订。巴氏杆菌广泛分布在新热带地区，从墨西哥南部到玻利维亚，也在加勒比海地区。亚马逊盆地是物种最集中的地区。现存的名字大约有350个，但实际的物种可能接近120个。该属之所以重要，有几个原因。它含有经济上重要的牛膝，这是可食用水果的来源，在潮湿的新热带地区种植和消费。这一栽培物种的祖先尚不清楚，但农学家对此非常感兴趣。其他物种提供大量次要产品。该属在低地热带森林生态系统中占有重要地位，是林下植被的重要组成部分。尽管该属体型庞大，具有重要的经济意义，但人们对它的了解却很少。最近的系统发育分析将该属划分为四个组，其中三个组将在这里提出的项目中进行修改。这次修订所用的方法将包括在关键区域进行野外采集，并从标本和腌制材料中分析形态、花粉形态、柱头形态和叶片解剖。

Bactris is one of the largest neotropical palm genera, and one of the most poorly known taxonomically. The aim of the research proposed here is to provide a taxonomic treatment of three sections, containing approximately 40 species, as a preliminary to a revision of the whole genus for Flora Neotropica. Bactris is widespread throughout the neotropics, from Mexico south to Bolivia, and also in the Caribbean. The Amazon basin contains the greatest concentration of species. Approximately 350 names exist, but there are probably nearer 120 actual species. The genus is important for several reasons. It contains the economically important B. gasipaes, the source of edible fruits which are grown and consumed throughout the humid Neotropics. The ancestors of this cultivated species are unknown, and yet are of great interest to agronomists. Other species provide a host of minor products. The genus is important in the lowland tropical forest ecosystems, and is a conspicuous component of the understory. Despite its large size and economic importance, the genus is very poorly understood. A recent phylogenetic analysis has divided the genus into four sections, three of which will be revised in the project proposed here. The methods used for this revision will include field collecting in critical areas and analysis of morphology, pollen morphology, stigma morphology and leaf anatomy from herbarium specimens and pickled material.