Lemma micromorphology in Cathestecum (Poaceae: Chloridoideae: Boutelouinae)
Given the taxonomical utility of lemma epidermis characters and the scarcity of such information for the genus Cathestecum, these characteristics are examined, described and compared with those of related genera in the subtribe Boutelouinae in order to elucidate possible characters of taxonomic valu...
| Hlavní autoři: | , |
|---|---|
| Médium: | Online |
| Jazyk: | spa |
| Vydáno: |
Instituto de Ecología, A.C.
2003
|
| On-line přístup: | https://abm.ojs.inecol.mx/index.php/abm/article/view/959 |
| _version_ | 1799771253110734848 |
|---|---|
| author | Pacheco Rivera, Darisol Dávila Aranda, Patricia |
| author_facet | Pacheco Rivera, Darisol Dávila Aranda, Patricia |
| author_sort | Pacheco Rivera, Darisol |
| collection | ABM |
| description | Given the taxonomical utility of lemma epidermis characters and the scarcity of such information for the genus Cathestecum, these characteristics are examined, described and compared with those of related genera in the subtribe Boutelouinae in order to elucidate possible characters of taxonomic value. The most significant results were the presence of papillae in C. tamaulipense, C. erectum and C. brevifolium var. sonorense, the absence of prickles and cork cells in C. brevifolium and the absence of silica bodies in all species of Cathestecum. Related genera (Buchloë, Soderstromia, Griffithsochloa, Pentarrhaphis and Bouteloua), each one represented by a single species (except Bouteloua and Pentarrhaphis), have abundant papillae (not observed in Bouteloua eludens and Griffithsochloa multifida) and cork cells. Silica bodies were observed only in Buchloë dactyloides. It is concluded that some of the micromorphological characters studied may be of taxonomic value for separating species of Cathestecum, as well as for establishing, along with others morphological sources, relationships among the taxa of subtribe Boutelouinae. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-959 |
| institution | Acta Botanica Mexicana |
| language | spa |
| publishDate | 2003 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-9592022-12-24T05:00:13Z Lemma micromorphology in Cathestecum (Poaceae: Chloridoideae: Boutelouinae) Micromorfología de la lema en Cathestecum (Poaceae: Chloridoideae: Boutelouinae) Pacheco Rivera, Darisol Dávila Aranda, Patricia anatomy Cathestecum Gramineae lemma anatomía Cathestecum Gramineae lema Given the taxonomical utility of lemma epidermis characters and the scarcity of such information for the genus Cathestecum, these characteristics are examined, described and compared with those of related genera in the subtribe Boutelouinae in order to elucidate possible characters of taxonomic value. The most significant results were the presence of papillae in C. tamaulipense, C. erectum and C. brevifolium var. sonorense, the absence of prickles and cork cells in C. brevifolium and the absence of silica bodies in all species of Cathestecum. Related genera (Buchloë, Soderstromia, Griffithsochloa, Pentarrhaphis and Bouteloua), each one represented by a single species (except Bouteloua and Pentarrhaphis), have abundant papillae (not observed in Bouteloua eludens and Griffithsochloa multifida) and cork cells. Silica bodies were observed only in Buchloë dactyloides. It is concluded that some of the micromorphological characters studied may be of taxonomic value for separating species of Cathestecum, as well as for establishing, along with others morphological sources, relationships among the taxa of subtribe Boutelouinae. Dada la utilidad taxonómica que presentan los caracteres de la epidermis de la lema y la escasez de información pertinente para el género Cathestecum, se examinan, describen y comparan estas características con aquellas presentadas por géneros afines de la subtribu Boutelouinae, con el fin de dilucidar sobre los posibles rasgos con valor taxonómico. Los resultados más significativos muestran la presencia de papilas en C. tamaulipense, C. erectum y C. brevifolium var. sonorense, la ausencia de aguijones y células de corcho en C. brevifolium y la ausencia de cuerpos de sílice en todas las especies de Cathestecum. Los géneros afines Buchloë, Soderstromia, Griffithsochloa, Pentarrhaphis y Bouteloua, representados en su mayoría por una sola especie, excepto Bouteloua y Pentarrhaphis, presentan abundantes papilas (no observadas en Bouteloua eludens ni en Griffithsochloa multifida) y células de corcho. Los cuerpos de sílice sólo se observaron en Buchloë dactyloides. Se concluye que algunas características micromorfológicas estudiadas pueden considerarse de valor taxonómico para separar las especies de Cathestecum, así como establecer, junto con otras fuentes de evidencia morfológicas, relaciones entre los taxa de la subtribu Boutelouinae. Instituto de Ecología, A.C. 2003-10-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf https://abm.ojs.inecol.mx/index.php/abm/article/view/959 10.21829/abm65.2003.959 Acta Botanica Mexicana; No. 65 (2003); 1-29 Acta Botanica Mexicana; Núm. 65 (2003); 1-29 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/959/1125 Derechos de autor 2016 Acta Botanica Mexicana https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Pacheco Rivera, Darisol Dávila Aranda, Patricia Lemma micromorphology in Cathestecum (Poaceae: Chloridoideae: Boutelouinae) |
| title | Lemma micromorphology in Cathestecum (Poaceae: Chloridoideae: Boutelouinae) |
| title_full | Lemma micromorphology in Cathestecum (Poaceae: Chloridoideae: Boutelouinae) |
| title_fullStr | Lemma micromorphology in Cathestecum (Poaceae: Chloridoideae: Boutelouinae) |
| title_full_unstemmed | Lemma micromorphology in Cathestecum (Poaceae: Chloridoideae: Boutelouinae) |
| title_short | Lemma micromorphology in Cathestecum (Poaceae: Chloridoideae: Boutelouinae) |
| title_sort | lemma micromorphology in cathestecum (poaceae: chloridoideae: boutelouinae) |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/959 |
| work_keys_str_mv | AT pachecoriveradarisol lemmamicromorphologyincathestecumpoaceaechloridoideaeboutelouinae AT davilaarandapatricia lemmamicromorphologyincathestecumpoaceaechloridoideaeboutelouinae AT pachecoriveradarisol micromorfologiadelalemaencathestecumpoaceaechloridoideaeboutelouinae AT davilaarandapatricia micromorfologiadelalemaencathestecumpoaceaechloridoideaeboutelouinae |
