The aim of this paper is to present recent advances in the microbotanical analyses of an organic residue on a potsherd from a late Holocene hunter-gatherer site in Argentine Patagonia, which is the first evidence of this kind for the processing of starchy food. Standard methods were carried out for starch grain recovery and morphometric analysis, care being taken in the prevention of cross-contamination and evaluation of post-depositional factors. Diagnostic features of the ancient starch grains recovered were compared against those from a list, available in the bibliography, of plants potentially processed in pottery, but no match was found. An anatomical and starch grain reference collection was established with three of the most frequently consumed traditional wild underground storage organs (USOs) of Patagonia, Alstroemeria aurea Graham, Tropaeolum porifolium Cav. and Diposis patagonica Skottsb., in order to compare these against the archaeobotanical record. We suggest that T. aff. porifolium (and probably also A. aff. aurea) were processed in the pot from which the sherd came, and discuss these results in terms of a better understanding of the role of wild USOs in subsistence and the possible cooking methods used in hunter-gatherer societies in Argentine Patagonia.

本文的目的是介绍对阿根廷巴塔哥尼亚晚期全新世猎人-采集者遗址的陶器上有机残留物进行微植物学分析的最新进展，这是此类加工淀粉类食品的第一个证据。进行了标准方法来进行淀粉颗粒的回收和形态分析，并注意防止交叉污染和评估沉积后的因素。将回收的古代淀粉颗粒的诊断特征与参考书目中那些可能用陶器加工的植物的诊断特征进行了比较，但没有找到匹配的结果。建立了巴塔哥尼亚最常见的三个传统野生地下存储器官（USO）的解剖学和淀粉颗粒参考集合，六出花罗非鱼格雷厄姆，旱porifolium的Cav。和Diposis patagonica Skottsb。，以便将其与古植物学记录进行比较。我们建议T. aff。porifolium（大概也A. AFF，罗非鱼）从该陶片来到锅进行了处理，并在更好地了解生活中的普遍服务义务野和可能的烹调方法的狩猎采集者使用的角色方面讨论这些结果巴塔哥尼亚的社会。