Aoyama 2002 (Dissertation) Lamprococcus, leaf

Estrutura foliar de Aechmea subgênero Lamprococcus e espécies relacionadas (Bromeliaceae)

Author(s):—E.M. Aoyama & M. Sajo das Gracas

Publication:—Univ. Est. Paulista Julio de Mesquita Filho, Rio Claro, Brazil (2002).

Abstract:—(Leaf structure of Aechmea Ruiz & Pav. subgenus Lamprococcus (Beer) Baker and related species (Bromeliaceae)).
With the aim of recognising useful features for taxonomic purposes, we studied the leaf anatomy of

25 taxa that are morphologically
related (13 of Aechmea subgenus Lamprococcus, three of Ronnbergia E. Morren & André, four of Araeococcus Brongn. and
five of Lymania Read). Although all leaves are hypostomatic and have a dorsiventral mesophyll with a hypodermis, they show
some features that characterise each species. These features include, the stomata position on leaf surface, the presence or
absence of substomatic occlusions, the occurrence or not of fibre clusters in the mesophyll, the nature of the cell walls of the
vascular bundle sheaths and the cell morphology of the diaphragm that interrupt the air channels. By associating these
characters we have elaborated an identification key for the studied taxa, based on the leaf structure.
Key words - Aechmea, leaf anatomy, taxonomy

Pages: 461–473