Comparative morphology and molecular systematics of Podostemum (including Crenias) American river-weeds (Podostemaceae)

A New Species of <I>Cipoia</I> (Podostemaceae) from Minas Gerais, Brazil

“…Several accessions retrieved from GenBank ( Moline et al 2006 ) were included in the phylogenetic analysis of ITS data ( Fig. 2A ).…”

“…Morphological data were scored individually from specimens that were included in the phylogenetic analysis of combined data (see below) and encoded as consensus data for all accessions of a given taxon. We scored morphology data for Apinagia yguazuensis , for which sequences were published previously ( Les et al 1997 ;Moline et al 2006 ). However, other taxa that were represented only by GenBank sequences were omitted from morphological and combined molecular data analyses because their voucher specimens were incomplete or were not examined.…”

“…All New World species except one ( Podostemum ceratophyllum ) are tropical to subtropical, ranging from central Mexico to northern Argentina ( Table 1 ). Phylogenetic analyses of morphological ( Philbrick and Novelo 2004 ) and molecular ( Moline et al 2006 ) data have indicated that species previously recognized in the genera Crenias Spreng. ( Cook and Rutishauser 2001 ) [Volume 36 and Devillea Tul.…”

The ramification of Apinagia riedelii: A key to the understanding of the plant architecture of Podostemaceae, subfamily Podostemoideae

“…The dithecous leaf is not related to the initiation of the axile meristem above the subtending leaf. Consequently, the reports of the ''subfoliar'' position of the branch (Jäger-Zürn, 1999, in a descriptive sense) or so-called non-axillary ramification (Moline et al, 2006;Rutishauser et al, 2003) and bifurcation with the dithecous leaf in terminal position (Ameka et al, 2002) represent misinterpretations. Indeed, the presence of a subtending leaf below each branch in A. riedelii is evidence of the typical ramification type of angiosperms.…”

“…The position of the branch below the leaf has been referred to as subfoliar (Jäger-Zürn, 1999) or non-axillary (Moline et al, 2006), but a widely accepted interpretation has not been reached (Jäger-Zürn, 2007). Several attempts have been made to explain the abnormal branch position.…”