TY - JOUR T1 - Comparative pollen morphology and ultrastructure of Mentheae subtribe Nepetinae (Lamiaceae) JF - Rev Palaeobot Palyno Y1 - 2008 DO - 10.1016/j.revpalbo.2007.12.001 A1 - Hye-Kyoung Moon A1 - Stefan Vinckier A1 - Erik Smets A1 - Suzy Huysmans SP - 174–186 KW - Angiosperms KW - Grains KW - Labiatae KW - Nepetinae KW - Nepetoideae KW - Orbicules KW - Palynology KW - Salvia Lamiaceae KW - Sequence Data KW - Sexine Ornamentation KW - Systematic Implications KW - Tapetum KW - Ultrastructure AB - {This study provides new pollen data of 52 representative species belonging to all 12 genera in the currently classification of the subtribe Nepetinae, and considers the possible presence of orbicules for the first time. Pollen morphology and ultrastructure were investigated with light, scanning electron and transmission electron microscopy. Nepetinae pollen is small to large (P= 16-65 mu m VL - 149 UR - http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V6W-4RC2NRJ-2&_user=2139813&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000054276&_version=1&_urlVersion=0&_userid=2139813&md5=176fca009343bce3d0330d25969d0f75 ER - TY - JOUR T1 - Palynological evolutionary trends within the tribe Mentheae with special emphasis on subtribe Menthinae (Nepetoideae: Lamiaceae) JF - Plant Systematics and Evolution Y1 - 2008 DO - 10.1007/s00606-008-0042-y A1 - Hye-Kyoung Moon A1 - Stefan Vinckier A1 - Erik Smets A1 - Suzy Huysmans SP - 93–108 KW - Angiosperms KW - Bireticulum KW - Exine Ornamentation KW - Labiatae KW - Mentheae KW - Menthinae KW - Nepetoideae KW - Orbicules KW - Palynology KW - Phylogeny KW - Pollen Morphology KW - Salvia Lamiaceae KW - Sequence Data KW - Systematic Implications KW - Tapetum KW - Ultrastructure AB - The pollen morphology of subtribe Menthinae sensu Harley et al. [In: The families and genera of vascular plants VII. Flowering plants.dicotyledons: Lamiales (except Acanthaceae including Avicenniaceae). Springer, Berlin, pp 167-275, 2004] and two genera of uncertain subtribal affinities (Heterolamium and Melissa) are documented in order to complete our palynological overview of the tribe Mentheae. Menthinae pollen is small to medium in size (13-43 mu m), oblate to prolate in shape and mostly hexacolpate (sometimes pentacolpate). Perforate, microreticulate or bireticulate exine ornamentation types were observed. The exine ornamentation of Menthinae is systematically highly informative particularly at generic level. The exine stratification in all taxa studied is characterized by unbranched columellae. Orbicules are consistently absent in Menthinae. Our palynological data are interpreted in a phylogenetic context at tribal level in order to assess the systematic value of pollen characters and to evaluate the existing molecular phylogenies for this group. Pollen morphology suggests Heterolamium as a close relative of subtribe Nepetinae and supports the molecular affinity of Melissa to subtribe Salviinae. VL - 275 UR - http://www.springerlink.com/content/r53652ggm17k1457/ ER -