Comparative anatomy of the leaves of Piper lepturum(Kunth) C.DC. var. lepturum and Piper lepturum var. angustifolium (C.DC.) Yunck

Autor: Cecília Gonçalves Costa, Flaviane Gomes Pereira, Paulo Roberto Dias dos Santos, Elsie Franklin Guimarães, Nelson Santana de Oliveira Machado
Rok vydání: 2015
Předmět:
Zdroj: Hoehnea v.42 n.1 2015
Hoehnea
Instituto de Botânica (IBT)
instacron:IBT
Hoehnea, Vol 42, Iss 1, Pp 1-8
ISSN: 2236-8906
DOI: 10.1590/2236-8906-21/2013
Popis: This study showed anatomical differences related to Piper lepturumvar. lepturum and P. lepturum var. angustifolium species, sometimes considered varieties and in other cases synonyms. For histological analysis, fully expanded leaves were collected and for analysis by scanning electron microscope (SEM), fragments from the midrib were fixed on both leaf surfaces. The two species revealed differences in plant anatomy and it was observed that the stem of P. lepturum var. lepturum showed persistent wings and papillary epidermal cells, and these characters are absent in P. lepturum var. angustifolium. There was also the presence of raphides only in the lamina leaf and petiole of P. lepturum var. angustifolium, differentiating the two species. Recent studies have shown the importance of plant anatomy with species where there are issues related to taxonomic delimitation.
Databáze: OpenAIRE