The Neotropical genus Palmorchis (Orchidaceae) contains 38 species distributed from Nicaragua to Peru, including northern Brazil. The genus is characterized by whitish or greenish tubular flowers with morphologically similar sepals and petals, a generally trilobed lip basally adnated to the gynostemium, and a gynostemium with a more or less curved apex. Here, a new species of Palmorchis belonging to the informal Palmorchis sobralioides group is described and illustrated from the state of Pará in the Brazilian Amazon, and its taxonomic affinities are discussed. Palmorchis triquilhada is close to P. sobralioides, differing basically by having a smaller size, pubescent leaves, deltoid and pubescent floral bracts, pubescent lip with ciliate margin, and a three‐keeled lanceolate median lobe without calli and with an acute apex. A description, photos, illustrations and ecological and taxonomic comments are provided for the species, as well as an identification key for related species.

中文翻译：

---

Palmorchis triquilhada sp。十一月 （兰科； Neottieae）来自巴西亚马逊

新热带棕榈科（兰科）包含从尼加拉瓜到秘鲁（包括巴西北部）的38种。该属的特征是白色或绿色的管状花，具有在形态上相似的萼片和花瓣，通常三叶基部基部附生于雌雄蕊草，以及具有或多或少弯曲的先端的雌雄蕊。这里，一个新的物种Palmorchis属于非正式Palmorchis sobralioides基团被描述和从帕拉在巴西亚马逊的状态示出，并且它的分类学亲和力进行讨论。Palmorchis triquilhada靠近P. sobralioides，主要区别在于较小的大小，短柔毛的叶子，三角状和短柔毛的花br片，具纤毛边缘的短柔毛唇和无愈伤组织且具有急性先端的三龙骨披针形正中叶。提供了该物种的描述，照片，插图以及生态和生物分类注释，以及相关物种的识别码。