Stem and leaf anatomy of Plectranthus neochilus Schltr., Lamiaceae

Revista Brasileira de Farmacognosia

Márcia Do Rocio Duarte¹  Juliano Ferreira Lopes¹ 

[1] ,Universidade Federal do Paraná Departamento de Farmácia Laboratório de FarmacognosiaCuritiba PR ,Brazil

关键词: Plectranthus neochilus;    Lamiaceae;    anatomy;    " boldo-gambá";    trichomes;    Plectranthus neochilus;    Lamiaceae;    anatomia;    boldo-gambá;    tricomas;   

DOI  :  10.1590/S0102-695X2007000400013

来源: SciELO

【 摘 要 】

Plectranthus neochilus Schltr. is an aromatic herb named " boldo" or " boldo-gambá" and employed for treating hepatic insufficiency and dyspepsia in folk medicine. This paper has investigated its stem and leaf anatomy, in order to contribute for the medicinal plant identification. The botanical material was prepared according to standard microtechniques. The stem has quadrangular transection and, in secondary growth at the level analyzed, shows uniseriate epidermis and numerous trichomes. The glandular ones are capitate and peltate. The former has short unicellular or long multicellular stalk and uni- or bicellular head. The latter presents short stalk and eight-celled ovoid head. The non-glandular trichomes are multicellular, uniseriate and coated with granular cuticle. It is observed angular collenchyma, cambia forming phloem outward and xylem inward, and perivascular fiber caps next to the phloem. The blade has uniseriate epidermis coated with striate cuticle, diacytic stomata on both surfaces, numerous trichomes similar to the stem ones, and homogeneous mesophyll. The midrib shows one or two collateral bundles and the petiole has many of them distributed as an open arc.

【 授权许可】

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