02148nas a2200193 4500008004100000245013100041210006900172260001200241300001000253490000800263520153300271653001201804653001401816653001501830100002101845700002501866700001501891856004801906 2016 eng d00aCuticular features of Cryptocarya (Lauraceae) from Peninsular Malaysia, Thailand and Indo-China and its taxonomic implications0 aCuticular features of Cryptocarya Lauraceae from Peninsular Mala c01/2016 a26-440 v2443 a

Cuticular features potentially offer valuable information on phytotaxonomy, especially for plants that are difficult to classify or identify. Cryptocarya is one such difficult and poorly known genus, and we investigated its cuticular features to evaluate their taxonomic implications. We examined cutinized leaf epidermis and the stomatal complex for 21 species from Peninsular Malaysia, Thailand and Indo-China, as well as one species endemic to Borneo and one to Sumatra, and compared features among members of this group, between this group and congeners in the other countries, and between this group and the other genera of Lauraceae. Many of the Cryptocarya species studied have straight to slightly curved anticlinal epidermal walls and butterfly-shaped stomatal ledges, although some variation was seen in the ornamentation of the periclinal epidermal walls and the appearance of the stomatal complex. Based on these results, we recognized four groups and two subgroups among the South-east Asian species. Comparison with congeneric taxa in the other countries indicates that butterfly-shaped stomatal ledges are often shared among the species across the regions. However, no cuticular features occur exclusively in any of the species groups of Cryptocarya studied here, nor in the genus as a whole. We consider that cuticular features are useful in the recognition of infrageneric groups within Lauraceae, bearing in mind that they might have evolved in parallel in different genera.

10acuticle10aepidermis10aMorphology1 aNishida, Sachiko1 ade Kok, Rogier, P.J.1 aYang, Yong uhttps://lauraceae.myspecies.info/node/2036601769nas a2200181 4500008004100000245008400041210007100125300001200196490000700208520118200215653001501397653001501412653001901427653001801446653001301464100002701477856008301504 2012 eng d00aAportes al conocimiento taxonómico del género Persea (Lauraceae) en Venezuela0 aAportes al conocimiento taxonómico del género Persea Lauraceae e a435-4780 v393 a

RESUMEN

A partir de la revisión taxonómica de exsicatas depositadas en herbarios nacionales y extranjeros, se exponen los aportes al conocimiento taxonómico del género Persea (Lauraceae) en Venezuela. Se reportan 24 especies, incluyendo una especie y dos variedades nuevas para la ciencia, nuevos reportes para el país, ampliaciones de distribución, mapas de distribución y una clave actualizada para la determinación de especies en Venezuela. Utilizando el paquete DELTA, se obtuvieron descripciones en lenguaje natural y una clave interactiva para la identificación de taxones.

ABSTRACT

A taxonomical revision was carried out for species of Persea (Lauraceae) in Venezuela from vouchers deposited at Venezuelan and foreign herbaria. Twenty-four species, including one new species and two new varities, new registers to Venezuela, expansion of distribution, distribution maps, and updated key for species at north and south of Orinoco River are reported. Descriptions in natural language and an interactive key for identification were obtained using Delta Software.

 

10aMorphology10aNeotropics10aphytogeography10aSouth America10ataxonomy1 aFerrer-Pereira, Hernan uhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S2236-8906201200030000700529nas a2200169 4500008004100000245005400041210004500095260003500140653001200175653001400187653001100201653001700212653001500229653001300244100001900257856008300276 2000 eng d00aOn the delimitation of Laurus species (Lauraceae)0 adelimitation of Laurus species Lauraceae aTanta University, Tanta, Egypt10aAnatomy10aLauraceae10aLaurus10aLeaf cuticle10aMorphology10aTaxanomy1 aLoutfy, M.H.A. uhttps://lauraceae.myspecies.info/content/delimitation-laurus-species-lauraceae