{"title":"EPIDENDRUM LASIOSTACHYUM (ORCHIDACEAE): A NEW COLOMBIAN SPECIES OF THE EPIDENDRUM MACROSTACHYUM GROUP","authors":"E. Hágsater","doi":"10.15517/LANK.V16I1.23621","DOIUrl":null,"url":null,"abstract":"In Epidendrum, considered a monophyletic genus, diverse groups can be recognized by their similar vegetative and floral characteristics. The revision of one of these groups, the E. macrostachyum group, recognized by the monopodial habit, with sub-apical branching, apical, erect inflorescence, non-resupinate, fleshy flowers, and entire lip, embracing the column, pubescent at least at the base, has led to the description of several new species, including a new species from Colombia that is here described and illustrated. The species is similar to Epidendrum microrigidiflorum , but differs in the inflorescence (distichous, 6 flowered vs. racemose, 8-16 flowered), the shape (trullate vs. widely rhombic) and ornamentation of the lip (sericeous vs. minutely papillose), and the lack of calli on the disc of the lip (ecallose vs. bicallose). In addition, a key to the 41 species of the group is provided. rEsuMEn: En Epidendrum, siendo considerado un genero monofiletico, se pueden reconocer diversos grupos de especies con caracteristicas vegetativas y florales similares. La revision de uno de estos grupos, el grupo E. macrostachyum, el cual se reconoce por su habito monopodial con ramificaciones subapicales, inflorescencia apical, erecta y flores no resupinadas, carnosas con el labelo entero abrazando la columna y pubescente por lo menos en la base, ha permitido la descripcion de varias especies nuevas, entre ellas la nueva especie que se describe y se ilustra aqui. Es una especie colombiana similar a Epidendrum microrigidiflorum , sin embargo difiere por la inflorescencia (distica, 6 flores vs. racemosa, 8-16 flores), en la forma (trulado vs. anchamente rombico) y ornamentacion del labelo (densamente sericeo vs. diminutamente papiloso) y en la ausencia de callos en el disco del mismo (ecalloso vs. bicalloso). Se presenta ademas una clave de las 41 especies del grupo.","PeriodicalId":18023,"journal":{"name":"Lankesteriana","volume":"235 1","pages":"27-37"},"PeriodicalIF":0.0000,"publicationDate":"2016-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"13","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Lankesteriana","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.15517/LANK.V16I1.23621","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}
引用次数: 13
Abstract
In Epidendrum, considered a monophyletic genus, diverse groups can be recognized by their similar vegetative and floral characteristics. The revision of one of these groups, the E. macrostachyum group, recognized by the monopodial habit, with sub-apical branching, apical, erect inflorescence, non-resupinate, fleshy flowers, and entire lip, embracing the column, pubescent at least at the base, has led to the description of several new species, including a new species from Colombia that is here described and illustrated. The species is similar to Epidendrum microrigidiflorum , but differs in the inflorescence (distichous, 6 flowered vs. racemose, 8-16 flowered), the shape (trullate vs. widely rhombic) and ornamentation of the lip (sericeous vs. minutely papillose), and the lack of calli on the disc of the lip (ecallose vs. bicallose). In addition, a key to the 41 species of the group is provided. rEsuMEn: En Epidendrum, siendo considerado un genero monofiletico, se pueden reconocer diversos grupos de especies con caracteristicas vegetativas y florales similares. La revision de uno de estos grupos, el grupo E. macrostachyum, el cual se reconoce por su habito monopodial con ramificaciones subapicales, inflorescencia apical, erecta y flores no resupinadas, carnosas con el labelo entero abrazando la columna y pubescente por lo menos en la base, ha permitido la descripcion de varias especies nuevas, entre ellas la nueva especie que se describe y se ilustra aqui. Es una especie colombiana similar a Epidendrum microrigidiflorum , sin embargo difiere por la inflorescencia (distica, 6 flores vs. racemosa, 8-16 flores), en la forma (trulado vs. anchamente rombico) y ornamentacion del labelo (densamente sericeo vs. diminutamente papiloso) y en la ausencia de callos en el disco del mismo (ecalloso vs. bicalloso). Se presenta ademas una clave de las 41 especies del grupo.
在附着树属,被认为是一个单系属,不同的群体可以通过他们相似的营养和花的特征来识别。其中一个类群,即E. macrostachyum类群,通过单足习性识别,具有亚顶端分支,顶端,直立花序,非复生,肉质花,整个唇部,包括柱头,至少在基部有短柔毛,导致了几个新物种的描述,包括这里描述和说明的来自哥伦比亚的一个新种。本种类似于小原花束,但在花序(二束状,6花对总状,8-16花),形状(小圆柱状对宽菱形)和唇的纹饰(绢毛对小乳突),以及唇瓣上缺乏愈伤组织(胼胝体对双胼胝体)方面有所不同。此外,还提供了该组41个种的钥匙。摘要:附生植物,单株植物,属植物,属植物,属植物,属植物,属植物,属植物。该植物属属植物群,属属植物群,属属植物群,属属植物群,属属植物群,属属植物群,属属植物群,属属植物群,属属植物群,属属植物群,属属植物群,属属植物群,属属植物群,属属植物群,属属植物群,属属植物群。特别是哥伦比亚的一种类似于小原花的附着物,在花序上有不同的缺陷(单株,6花对总状花序,8-16花),在形态上有不同的缺陷(trulado vs. anchamente rombico),在纹饰上有不同的缺陷(densamente serviceo vs. diminamente papiloso),在callos上有不同的缺陷(ecalloso vs. bicalloso)。本论文提出了41种分类分类的分类方法。