<i>Schismatoglottis</i> and <i>Apoballis</i> (Araceae: Schismatoglottideae): A new example for the significance of pollen morphology in Araceae systematics

Ulrich, Silvia; Hesse, Michael; Bröderbauer, David; Wong, Sin Yeng; Boyce, Peter C.

doi:10.1002/tax.612001

Cited by 18 publications

(20 citation statements)

References 31 publications

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“…,b; Ulrich et al . ). Interestingly, calcium oxalate crystals are found on Schismatoglottis but not in the small genera, apart from Hestia S.Y.Wong & P.C.Boyce (Ulrich et al .…”

Section: Discussionmentioning

confidence: 97%

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Floral diversity and pollination strategies of three rheophytic Schismatoglottideae (Araceae)

et al. 2015

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Homoplastic evolution of 'unique' morphological characteristics in the Schismatoglottideae -many previously used to define genera -prompted this study to compare morphology and function in connection with pollination biology for Aridarum nicolsonii, Phymatarum borneense and Schottarum sarikeense. Aridarum nicolsonii and P. borneense extrude pollen through a pair of horned thecae while S. sarikeense sheds pollen through a pair of pores on the thecae. Floral traits of spathe constriction, presence and movement of sterile structures on the spadix, the comparable role of horned thecae and thecae pores, the presence of stamen-associated calcium oxalate packages, and the timing of odour emission are discussed in the context of their roles in pollinator management. Pollinators for all investigated species were determined to be species of Colocasiomyia (Diptera: Drosophilidae).

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“…,b; Ulrich et al . ). Interestingly, calcium oxalate crystals are found on Schismatoglottis but not in the small genera, apart from Hestia S.Y.Wong & P.C.Boyce (Ulrich et al .…”

Section: Discussionmentioning

confidence: 97%

“…Investigation of the flowering mechanisms and pollination strategies in Schismatoglottideae is so far limited to a few recent studies (Ulrich et al . ; Wong & Boyce ; Low et al . ).…”

Section: Introductionmentioning

confidence: 99%

Floral diversity and pollination strategies of three rheophytic Schismatoglottideae (Araceae)

et al. 2015

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“…Such movements have so far only been observed in Colocasia and in taxa of the tribe Schismatoglottideae (Cleghorn ; Boyce & Wong ; Ulrich et al . ).…”

Section: Discussionmentioning

confidence: 97%

Adaptations for insect‐trapping in brood‐site pollinated Colocasia (Araceae)

2013

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The Araceae include both taxa with rewarding and deceptive trap pollination systems. Here we report on a genus in which rewarding and imprisonment of the pollinators co-occur. We studied the pollination of four species of Colocasia in Southwest China and investigated the morpho-anatomical adaptations of the spathe related to the attraction and capture of pollinators. All four species were pollinated by drosophilid flies of the genus Colocasiomyia. The flies are temporally arrested within the inflorescence and departure is only possible after pollen release. Trapping of the flies is accomplished by the closure of the spathe during anthesis. Moreover, in two species the spathe is covered with papillate epidermal cells known to form slippery surfaces in deceptive traps of Araceae. However, in Colocasia the papillae proved not slippery for the flies. The morpho-anatomical properties of the spathe epidermis indicate that it is an elaborate osmophore and serves for the emission of odours only. Despite its similarity to deceptive traps of other aroids, Colocasia and Colocasiomyia have a close symbiotic relationship, as the attracted flies use the inflorescence as a site for mating and breeding. The trap mechanism has presumably evolved independently in Colocasia and is supposed to facilitate more efficient pollen export.

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“…the spathe and the sterile flowers of the spadix). These organs need to be synorganized in order to ensure successful trapping of pollinators (Bröderbauer et al, 2012). As shown for several angiosperms, variation in floral traits is often lower in flowers with a higher degree of synorganization (Armbruster et al, 2009) and this might also be the reason for the conserved Bauplan and zonation of trapping devices in Arum.…”

Section: Comparison Of Trap Designmentioning

confidence: 99%

“…In general, trapping hairs and slippery surfaces made up by downward-pointing papillate cells are common trapping devices that occur in several other genera of Araceae (Bröderbauer et al, 2012), in pollination traps of other angiosperms and even in the pitcher traps of carnivorous plants (Poppinga et al, 2010). Pollination traps in species of Aristolochia and Ceropegia contain either both trapping hairs and slippery surfaces or only one of the two features, and trapping hairs often occur on different parts of the floral tube (Vogel, 1961(Vogel, , 1965.…”

Section: Comparison Of Trap Designmentioning

confidence: 99%

The design of trapping devices in pollination traps of the genusArum(Araceae) is related to insect type

2013

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Pollinators have long been known to select for floral traits, but the nature of this relationship has been little investigated in trap pollination systems. We investigated the trapping devices of 15 Arum spp. and compared them with the types of insects trapped. Most species shared a similar general design of trap chamber walls covered in downward-pointing papillate cells, lacunose cells in the chamber wall and elongated sterile flowers partially blocking the exit of the trap. However, there was significant variation in all these morphological features between species. Furthermore, these differences related to the type of pollinator trapped. Most strikingly, species pollinated by midges had a slippery epidermal surface consisting of smaller papillae than in species pollinated by other insects. Midge-pollinated species also had more elongated sterile flowers and tended to have a larger lacunose area. We conclude that pollination traps evolve in response to the type of insect trapped and that changes to the slippery surfaces of the chamber wall are an important and previously little recognized variable in the design of pollination traps. © 2013 The Linnean Society of London, Botanical Journal of the Linnean Society, 2013, 172, 385–397.

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Schismatoglottis and Apoballis (Araceae: Schismatoglottideae): A new example for the significance of pollen morphology in Araceae systematics

Cited by 18 publications

References 31 publications

Floral diversity and pollination strategies of three rheophytic Schismatoglottideae (Araceae)

Floral diversity and pollination strategies of three rheophytic Schismatoglottideae (Araceae)

Adaptations for insect‐trapping in brood‐site pollinated Colocasia (Araceae)

The design of trapping devices in pollination traps of the genusArum(Araceae) is related to insect type

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