Hydrocera triflora, Its Floral Morphology and Relationship with Impatiens: Studies in Balsaminaceae: V

Grey-Wilson, C.

doi:10.2307/4117017

Cited by 27 publications

(29 citation statements)

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“…The monosymmetry of the flowers is expressed in the development and arrangement of the perianth and androecium (e.g. Grey‐Wilson, 1980a, c; Caris et al ., ). As pointed out by Grey‐Wilson (1980c) and Janssens et al .…”

Section: Discussionmentioning

confidence: 97%

“…In Balsaminaceae, only Hydrocera has a fully developed calyx and corolla (e.g. Grey‐Wilson, 1980a; but see new hypothesis described below); in representatives of Impatiens L., the corolla is pentamerous, but the calyx is usually interpreted as being partly reduced as the upper lateral sepals are either rudimentary or are lacking (Payer, ; Warburg & Reiche, ; Caris et al ., ; Yu et al ., ). The androecium is pentamerous in Balsaminaceae and Pentamerista and Pelliciera (Tetrameristaceae), whereas it is tetramerous in Tetramerista (Tetrameristaceae); in both of these families, the stamens alternate with the petals.…”

Section: Discussionmentioning

confidence: 98%

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Comparative floral structure and systematics in the balsaminoid clade including Balsaminaceae, Marcgraviaceae and Tetrameristaceae (Ericales)

Balthazar

Schönenberger

2013

Bot J Linn Soc

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Based on molecular phylogenetic studies, Balsaminaceae, Tetrameristaceae (including Pellicieraceae) and Marcgraviaceae form the strongly supported first branching clade in the asterid order Ericales. Marcgraviaceae and Tetrameristaceae were proposed to be closely related in pre‐molecular studies, but the systematic position of Balsaminaceae has been controversial for some time and a relationship with the other two families was never suggested in pre‐molecular/pre‐cladistic times. However, interfamilial relationships in the clade are still unclear because of conflicting phylogenetic hypotheses from molecular analyses. In order to assess the validity of these molecular hypotheses from a morphological point of view, the floral morphology, anatomy and histology of Balsaminaceae, Tetrameristaceae and Marcgraviaceae are comparatively studied in detail. In addition, earlier literature is reviewed. The monophyly of the balsaminoid clade is strongly supported by floral structure, and a series of potential floral synapomorphies is identified for the clade. Prominent features shared by the three families include broad and dorsiventrally flattened filaments, thread‐like structures lining the stomia of dehisced anthers, secretory inner morphological surfaces of the gynoecium, ovules intermediate between uni‐ and bitegmic, incompletely tenuinucellar ovules, fruits with persistent style and stigma, seeds lacking endosperm and several anatomical/histological traits. The families are also distinctive because the bracts and/or sepals are petaloid and nectariferous. Further, the floral structure supports a sister group relationship between Balsaminaceae and Tetrameristaceae rather than any of the other possible interfamilial relationships. These two families share a caducous calyx, post‐genital fusion/coherence of filaments and ovary surface, latrorse anther dehiscence, commissural carpel lobes and ovules with a thickened funiculus and a constricted chalazal region. The occurrence of these features in Ericales is discussed. Future structural studies in other ericalean lineages and additional molecular studies are needed to further test these features with respect to their systematic value for the balsaminoid clade. Some may turn out to be true synapomorphies, whereas others may be recognized as plesiomorphies, as they may be more widely spread in Ericales than currently thought. © 2013 The Linnean Society of London, Botanical Journal of the Linnean Society, 2013, 173, 325–386.

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 98%

Comparative floral structure and systematics in the balsaminoid clade including Balsaminaceae, Marcgraviaceae and Tetrameristaceae (Ericales)

Balthazar

Schönenberger

2013

Bot J Linn Soc

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“…In fact, all three families share at least two unusual features: 1) the presence of raphides, described as being present in parenchyma cells (Marcgraviaceae), sacs (Balsaminaceae) or specialized cells (Tetrameristaceae), and 2) specialized nectaries or glands occurring on the outer surface of leaves, petioles, sepals or petals. More frequently occurring shared characters (Swamy 1948;Narayana 1965Narayana , 1974Maguire et al 1972;Grey-Wilson 1980) include simple (and rarely scalariform in Tetrameristaceae and Marcgraviaceae) perforation plates; glabrous, simple and exstipulate leaves (sometimes small stipules in Balsaminaceae); hypogynous flowers; sepals and petals 4 or 5 (sepals usually 3 in Impatiens due to adnation); binucleate, tricolporate pollen grains; and bitegmic ovules. Balsaminaceae and Marcgraviaceae share features unknown in the Tetrameristaceae, including a deciduous calyptra derived from either the androeciuim (Balsaminaceae) or the petals (Marcgraviaceae); unilacunar nodes; tenuinucellar ovules and a scanty, cellular endosperm with a haustorium.…”

Section: Discussionmentioning

confidence: 98%

A Molecular Evaluation of the Monophyly of the Order Ebenales Based Upon rbcL Sequence Data

Morton¹,

Chase²,

Kron³

et al. 1996

Systematic Botany

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“…1). In contrast, Hydrocera is native to Indo-Malayan region, where it occurs as a semiaquatic plant in stagnant water around sea level (Grey-Wilson 1980b;Ramadevi and Narayana 1990).…”

mentioning

confidence: 99%

Phylogenetic Analyses of Molecular Data and Reconstruction of Morphological Character Evolution in Asian <I>Impatiens</I> section <I>Semeiocardium</I> (Balsaminaceae)

Ruchisansakun¹,

Niet²,

Janssens³

et al. 2016

Systematic Botany

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Hydrocera triflora, Its Floral Morphology and Relationship with Impatiens: Studies in Balsaminaceae: V

Cited by 27 publications

References 0 publications

Comparative floral structure and systematics in the balsaminoid clade including Balsaminaceae, Marcgraviaceae and Tetrameristaceae (Ericales)

Comparative floral structure and systematics in the balsaminoid clade including Balsaminaceae, Marcgraviaceae and Tetrameristaceae (Ericales)

A Molecular Evaluation of the Monophyly of the Order Ebenales Based Upon rbcL Sequence Data

Phylogenetic Analyses of Molecular Data and Reconstruction of Morphological Character Evolution in Asian <I>Impatiens</I> section <I>Semeiocardium</I> (Balsaminaceae)

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