Comparative anatomy of the leaf blade of Distichlis (Poaceae)

Six species and 11 varieties of the genus Distichlis Raf. were compared anatomically. The taxa studied were: Distichlis australis (Speg.) Villamil; D. humilis Phil.; D. palmeri (Vasey) Fassett ex I.M. Johnst.; D. scoparia (Nees ex Kunth) Arechav. var. erinacea (Beetle) Nicora and var. scoparia; and...

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Autori principali: López Soto, María Martina, Koch, Stephen D., Flores-Cruz, María, Engleman, E. Mark
Natura: Online
Lingua:spa
Pubblicazione: Instituto de Ecología, A.C. 2009
Accesso online:https://abm.ojs.inecol.mx/index.php/abm/article/view/302
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author López Soto, María Martina
Koch, Stephen D.
Flores-Cruz, María
Engleman, E. Mark
author_facet López Soto, María Martina
Koch, Stephen D.
Flores-Cruz, María
Engleman, E. Mark
author_sort López Soto, María Martina
collection ABM
description Six species and 11 varieties of the genus Distichlis Raf. were compared anatomically. The taxa studied were: Distichlis australis (Speg.) Villamil; D. humilis Phil.; D. palmeri (Vasey) Fassett ex I.M. Johnst.; D. scoparia (Nees ex Kunth) Arechav. var. erinacea (Beetle) Nicora and var. scoparia; and D. spicata (L.) Greene, represented by the following eight varieties: var. borealis (J. Presl) Beetle, var. divaricata Beetle, var. mendocina (J. Presl) Hack., var. mexicana Beetle, var. nana Beetle, var. spicata, var. stolonifera Beetle and var. stricta (Torr.) Scribn. Also included were two taxa for which the anatomical information was taken from the literature: Distichlis laxiflora Hack. and Distichlis spicata var. distichophylla (Michx.) Beetle. Fourteen anatomical characters of taxonomic value were found, seven in cross section and seven in the epidermis as seen in surface view. Distichlis australis and D. palmeri were found to differ from all of the other species. Distichlis humilis, D. scoparia and D. spicata form an anatomically homogeneous group, but with characteristics that distinguish each of them. Within Distichlis spicata, no anatomical character or combination of characters was found that would justify the recognition of infraspecific taxa and/or segregate species. For this reason, these taxa are considered to be synonyms of D. spicata.
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spelling oai:oai.abm.ojs.inecol.mx:article-3022022-12-23T05:37:45Z Comparative anatomy of the leaf blade of Distichlis (Poaceae) Anatomía comparada de la lámina foliar del género Distichlis (Poaceae) López Soto, María Martina Koch, Stephen D. Flores-Cruz, María Engleman, E. Mark anatomy Distichlis leaf blade Poaceae taxonomy anatomía Distichlis lámina foliar Poaceae taxonomía Six species and 11 varieties of the genus Distichlis Raf. were compared anatomically. The taxa studied were: Distichlis australis (Speg.) Villamil; D. humilis Phil.; D. palmeri (Vasey) Fassett ex I.M. Johnst.; D. scoparia (Nees ex Kunth) Arechav. var. erinacea (Beetle) Nicora and var. scoparia; and D. spicata (L.) Greene, represented by the following eight varieties: var. borealis (J. Presl) Beetle, var. divaricata Beetle, var. mendocina (J. Presl) Hack., var. mexicana Beetle, var. nana Beetle, var. spicata, var. stolonifera Beetle and var. stricta (Torr.) Scribn. Also included were two taxa for which the anatomical information was taken from the literature: Distichlis laxiflora Hack. and Distichlis spicata var. distichophylla (Michx.) Beetle. Fourteen anatomical characters of taxonomic value were found, seven in cross section and seven in the epidermis as seen in surface view. Distichlis australis and D. palmeri were found to differ from all of the other species. Distichlis humilis, D. scoparia and D. spicata form an anatomically homogeneous group, but with characteristics that distinguish each of them. Within Distichlis spicata, no anatomical character or combination of characters was found that would justify the recognition of infraspecific taxa and/or segregate species. For this reason, these taxa are considered to be synonyms of D. spicata. Se hizo un estudio anatómico-sistemático de seis especies y 11 variedades del género Distichlis Raf. Los taxa incluidos fueron: D. australis (Speg.) Villamil; D. humilis Phil.; D. palmeri (Vasey) Fassett ex I. M. Johnst.; D. scoparia (Nees ex Kunth) Arechav. var. erinacea (Beetle) Nicora, y var. scoparia; y D. spicata (L.) Greene, esta última representada por las siguientes ocho variedades: var. borealis (J. Presl) Beetle, var. divaricata Beetle, var. mendocina (Phil.) Hack., var. mexicana Beetle, var. nana Beetle, var. spicata, var. stolonifera Beetle y var. stricta (Torr.) Scribn. Se incluyeron dos taxa cuya información anatómica fue extraída de la literatura: Distichlis laxiflora Hack. y Distichlis spicata var. distichophylla (Michx.) Beetle. Se encontraron 14 caracteres anatómicos considerados de valor taxonómico, siete en corte transversal y siete en vista superficial de la epidermis abaxial. Distichlis australis y D. palmeri difieren claramente del resto de las especies. Distichlis humilis, D. scoparia y D. spicata forman un grupo anatómicamente homogéneo pero con características que las hacen distintivas a cada una. Para Distichlis spicata, no se encontró ningún carácter o combinación de caracteres anatómicos con los cuales pueda separarse en distintos grupos. Por esta razón, las especies, subespecies y/o variedades propuestas por algunos autores para esta entidad se consideran sinónimos de D. spicata. Instituto de Ecología, A.C. 2009-10-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf text/html https://abm.ojs.inecol.mx/index.php/abm/article/view/302 10.21829/abm89.2009.302 Acta Botanica Mexicana; No. 89 (2009); 1-23 Acta Botanica Mexicana; Núm. 89 (2009); 1-23 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/302/466 https://abm.ojs.inecol.mx/index.php/abm/article/view/302/467 Derechos de autor 2015 Acta Botanica Mexicana
spellingShingle López Soto, María Martina
Koch, Stephen D.
Flores-Cruz, María
Engleman, E. Mark
Comparative anatomy of the leaf blade of Distichlis (Poaceae)
title Comparative anatomy of the leaf blade of Distichlis (Poaceae)
title_full Comparative anatomy of the leaf blade of Distichlis (Poaceae)
title_fullStr Comparative anatomy of the leaf blade of Distichlis (Poaceae)
title_full_unstemmed Comparative anatomy of the leaf blade of Distichlis (Poaceae)
title_short Comparative anatomy of the leaf blade of Distichlis (Poaceae)
title_sort comparative anatomy of the leaf blade of distichlis (poaceae)
url https://abm.ojs.inecol.mx/index.php/abm/article/view/302
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