Phylogenetic analysis of Cabombaceae and Nymphaeaceae based on vegetative and leaf architectural characters

Taylor, David W.

doi:10.1002/tax.574005

Cited by 23 publications

(33 citation statements)

References 24 publications

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“…These occur among Nymphaeaceae, Piperaceae and Saururaceae. However, Nymphaeaceae are characterized by deeply cordate leaf bases (Taylor, 2008) and hydropotes (Kaul, 1976) that are absent in Spixiarum. Furthermore, Piper aceae and Saururaceae display tetracytic stomata (Kubitzki & al., 1993).…”

Section: Spixiarum Kipeamentioning

confidence: 99%

The Early Cretaceous Aroid, Spixiarum kipea gen. et sp. nov., and implications on early dispersal and ecology of basal monocots

Coiffard

Mohr

Bernardes-de-Oliveira

2013

TAXON

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Morphology and anatomy of a fossil monocotyledon from the late Early Cretaceous and extant monocots are compared. Anatomy was examined based on publications, while leaf morphology, especially the venation, required new observations on fresh and herbarium material. Spixiarum kipea gen. et sp. nov. belongs most likely to Araceae, and may be sister to Orontioideae or is even part of this tribe. Consequently, proto‐Araceae were most likely present during the Early Cretaceous in South America. The occurrence of Spixiarum in South America indicates a north Gondwana origin for Orontioideae and and thus may indicate a Gondwanan origin for proto‐Araceae. Sedimentological and taphonomic context indicate that Spixiarum had probably a helophytic ecology similar to living Orontioideae and formed possibly the aquatic vegetation of the Crato Lake in association with the Nymphaeales Pluricarpellatia peltata and Jaguariba wiersemana. Early Cretaceous monocotyledon remains have been rarely recorded. It is debatable if their scarceness is a sign of low diversity or may be due to taphonomic/ecologic reasons.

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Section: Spixiarum Kipeamentioning

confidence: 99%

The Early Cretaceous Aroid, Spixiarum kipea gen. et sp. nov., and implications on early dispersal and ecology of basal monocots

Coiffard

Mohr

Bernardes-de-Oliveira

2013

TAXON

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“…In numerous detailed studies comparing leaf architecture among fossil species from different strata with extant species, evolutionary trends of venation patterns within plant families and genera could be shown (Hickey and Wolfe 1975;Fuller and Hickey 2005;Taylor 2008). Some studies investigated leaf morphology and anatomy of fossils assigned to Rosaceae (Lis 1992;De Leon and Cevallos-Ferriz 2000;Erwin and Schorn 2000;DeVore and Pigg 2007), but leaf architecture found in fossil species of the genus Rosa compared with those of extant rose species has not been surveyed in detail yet.…”

Section: Introductionmentioning

confidence: 98%

Leaf Architecture of Extant Species ofRosaL. and the Paleogene SpeciesRosa lignitumHeer (Rosaceae)

Kellner

Benner

Walther

et al. 2012

International Journal of Plant Sciences

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Leaf fossils of Rosa lignitum Heer have often been documented as an accessory element in mixed mesophytic forests from the Oligocene and Miocene of central Europe. Its relationship to extant rose species is not yet firmly understood because leaf morphology contributes only marginally to the current taxonomy of the genus Rosa L. In this study, we investigate which extant rose species have structural leaf characters most similar to those of R. lignitum and whether the distribution and ecology of these extant species fit with the conditions hypothesized for the paleovegetation containing R. lignitum. Therefore, we examined the leaf characters of 32 extant rose species for their diagnostic value in taxonomy and compared these data with characters observed in R. lignitum from five Paleogene floras in central Europe. Most remarkably, we detected semicraspedodromous venation in R. lignitum. This venation pattern was found only in a few species of Rosa distributed in Southeast Asia, whereas the majority of extant rose species developed strictly craspedodromous venation. The distribution of extant species with semicraspedodromous venation in mixed broad-leaved deciduous and evergreen forests in subtropical China clearly corresponds to the hypothesized mixed mesophytic forests in the European paleovegetation. Thus, this study of detailed leaf morphology of Rosa again supports the previous assumption that the zonal vegetation of the central European Oligocene is partly comparable to extant forest types in Southeast Asia.

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“…Nymphaea plus these three genera have been referred to as core Nymphaeaceae (Borsch et al ., 2008). Morphological analyses support the sister relationship between subgenus Nymphaea and the rest of core Nymphaeaceae (Borsch et al ., 2008; Taylor, 2008) and there are differences in floral biology and probably also of breeding system (Wiersema, 1988). Little is known of progamic phase biology in any of these groups apart from the greenhouse study of N. capensis within the pantropical subgenus Brachyceras (Orban & Bouharmont, 1995).…”

Section: Introductionmentioning

confidence: 99%

Pollen tube growth and the pollen-tube pathway of Nymphaea odorata (Nymphaeaceae)

Williams

Mcneilage

Lettre

et al. 2010

Botanical Journal of the Linnean Society

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An important aspect of the evolution of carpel closure, or angiospermy, is the relationship between pollen tube growth patterns and internalization of the pollen‐tube pathway. True carpel closure, involving postgenital fusion of inner carpel margins, is inferred to have arisen once within the ancient order Nymphaeales, in the common ancestor of Nymphaeaceae. We studied pollen tube development, from pollination to fertilization, in a natural population of Nymphaea odorata, using hand pollinations and timed flower collections. Pollen germinates in stigmatic secretions within 15 min and pollen tubes enter subdermal transmitting tissue within an hour, following wide intercellular spaces towards the zone of postgenital fusion. At the zone of fusion they turn downwards to grow in narrow spaces between interlocked cells and then wander freely to ovules within ovarian secretions. The pollen‐tube pathway is 2–6 mm long and upper ovules are first penetrated 2.5 h after pollination. Pollen tubes grow at rates of approximately 1 mm/h whether in stigmatic fluid, transmitting tissues or ovarian secretions. Pollen‐tube pathways are structurally diverse across Nymphaeales, yet their pollen tubes have similar morphologies and rapid growth rates. This pattern suggests pollen tube growth innovations preceded and were essential for the evolution of complete carpel closure. © 2010 The Linnean Society of London, Botanical Journal of the Linnean Society, 2010, 162, 581–593.

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Phylogenetic analysis of Cabombaceae and Nymphaeaceae based on vegetative and leaf architectural characters

Cited by 23 publications

References 24 publications

The Early Cretaceous Aroid, Spixiarum kipea gen. et sp. nov., and implications on early dispersal and ecology of basal monocots

The Early Cretaceous Aroid, Spixiarum kipea gen. et sp. nov., and implications on early dispersal and ecology of basal monocots

Leaf Architecture of Extant Species ofRosaL. and the Paleogene SpeciesRosa lignitumHeer (Rosaceae)

Pollen tube growth and the pollen-tube pathway of Nymphaea odorata (Nymphaeaceae)

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