Tertiary<i>Bluffopollis scabratus</i>(Couper) Pocknall &amp; Mildenhall, 1984 and modern<i>Strasburgeria</i>pollen: a botanical comparison

Jarzen, David M.; Pocknall, David T.

doi:10.1080/0028825x.1993.10419493

Cited by 16 publications

(7 citation statements)

References 14 publications

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“…Unfortunately, fossils of Crossosomatales are scant and are not sufficiently old to help in connecting extant families, perhaps with the exception of Bluffopollis , which resembles Strasburgeria and was found in New Zealand (the present distribution area of Ixerba ) (Jarzen & Pocknall, 1993), although extant Ixerba pollen differs from Strasburgeria in having four or five apertures (and not three) (Erdtman, 1952; this study).…”

Section: Floral Structure and Systematicsmentioning

confidence: 85%

“…Pollen is tricolporate with pronounced horizontally extended (lalongate) endoapertures, in Stachyurus (Erdtman, 1952), Staphyleaceae (Erdtman, 1952; Waanders & Skvarla, 1968; Dickison, 1987a), Geissoloma (Erdtman, 1952; Dahlgren & Rao, 1969), and Strasburgeria (Dickison, 1981; Jarzen & Pocknall, 1993). In Ixerba it is 4–5‐colporate (Erdtman, 1952; Pastre & Pons, 1973; this study).…”

Section: Discussionmentioning

confidence: 99%

“…In Ixerba it is 4–5‐colporate (Erdtman, 1952; Pastre & Pons, 1973; this study). Exine is thickened (‘incrassate’, Erdtman, 1952) along the apertures in some Staphyleaceae (Dickison, 1987a), in Ixerba (Erdtman, 1952), and Strasburgeria (Dickison, 1981; Jarzen & Pocknall, 1993). It is not thickened in Stachyurus (Erdtman, 1952).…”

Section: Discussionmentioning

confidence: 99%

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Comparative floral structure and systematics in Crossosomatales (Crossosomataceae, Stachyuraceae, Staphyleaceae, Aphloiaceae, Geissolomataceae, Ixerbaceae, Strasburgeriaceae)

Matthews

Endress

2005

Botanical Journal of the Linnean Society

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Floral structure of all putative families of Crossosomatales as suggested by molecular studies was comparatively studied. The seven comprise Crossosomataceae, Stachyuraceae, Staphyleaceae, Aphloiaceae, Geissolomataceae, Ixerbaceae, and Strasburgeriaceae. The entire clade (1) is highly supported by floral structure, also the clades (in sequence of diminishing structural support): Ixerbaceae/Strasburgeriaceae (2), Geissolomataceae/Ixerbaceae/Strasburgeriaceae (3), Aphloiaceae/Geissolomataceae/Ixerbaceae/Strasburgeriaceae (4), and Crossosomataceae/Stachyuraceae/Staphyleaceae (5). Among the prominent floral features of Crossosomatales (1) are solitary flowers, presence of a floral cup, imbricate sepals with outermost smaller than inner, pollen grains with horizontally extended endoapertures, shortly stalked gynoecium, postgenitally united carpel tips forming a compitum, stigmatic papillae two‐ or more‐cellular, ovary locules tapering upwards, long integuments forming zigzag micropyles, cell clusters with bundles of long yellow crystals, mucilage cells, seeds with smooth, sclerified testa and without a differentiated tegmen. Clade (2) is characterized by large flowers, petals forming a tight, pointed cone in bud, stamens with long, stout filaments and sagittate anthers, streamlined, conical gynoecium, antitropous ovules, rudimentary aril, lignified, unicellular, T‐shaped hairs and idioblasts with striate mucilaginous cell walls. Clade (3) is characterized by alternisepalous carpels, punctiform stigma formed by postgenitally united and twisted carpel tips, synascidiate ovary, only one or two pendant ovules per carpel, nectary recesses between androecium and gynoecium. Clade (4) is characterized by pronounced ‘pollen buds’. Clade (5) is characterized by polygamous or functionally unisexual flowers, x‐shaped anthers, free and follicular carpels (not in Stachyuraceae). Crossosomataceae and Aphloiaceae, although not retrieved as a clade in molecular studies, share several special floral features: polystemonous androecium; basifixed anthers without a connective protrusion; stigma with two more or less decurrent crests; camplyotropous ovules and reniform seeds; simple, disc‐shaped nectaries and absence of hairs. © 2005 The Linnean Society of London, Botanical Journal of the Linnean Society, 2005, 147, 1–46.

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Section: Floral Structure and Systematicsmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 99%

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Comparative floral structure and systematics in Crossosomatales (Crossosomataceae, Stachyuraceae, Staphyleaceae, Aphloiaceae, Geissolomataceae, Ixerbaceae, Strasburgeriaceae)

Matthews

Endress

2005

Botanical Journal of the Linnean Society

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“…An extinct conifer Phyllocladidites mawsonii (Huon pine, restricted today to the west coast of Tasmania) is also present. Extinct pollen from angiosperm trees and shrubs include Bluffopollis scabratus ( Strasbergia robusta , a species restricted to New Caledonia today; Jarzen & Pocknall 1993), Liliacidites variegatus (?Liliaceae), Monosulcites spp. (palms), Proteacidites spp.…”

Section: Resultsmentioning

confidence: 99%

A discontinuous Late Cenozoic vegetation record from a maar crater in Auckland, New Zealand

Horrocks

Nichol

Mildenhall

et al. 2007

New Zealand Geographer

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Presented here are results of analyses of sediments from a maar crater at Matukutureia, south Auckland. The record is discontinuous, reflecting formation of peat on the tuff surface after the eruption. The tuff section of the profile (3-7 million years old) has pollen of numerous extinct taxa and suggests broad-leaf beech ( Brassospora ) forest with Casuarina and Agathis , and warm temperate conditions. A date of 15 051 ± 80 14 C yr BP from the base of the overlying peat provides a minimum date for the eruption of McLauchlins Hill volcano. We cannot determine the timing of early Polynesian activities.

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“…The age of this microflora is uncertain (possible Early Eocene) but Churchill (1973) and Jarzen and Pocknall (1993) have reported Nypa and Strasburgeriaceae (Bluffopollis scabratus) pollen, respectively, from the same formation.…”

Section: Appendix 1 Cretaceous Datamentioning

confidence: 99%

Fossil leaves of Banksia, Banksieae and pretenders: resolving the fossil genus Banksieaephyllum

Carpenter

Jordan

Hill

2016

Aust. Systematic Bot.

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The genus Banksieaephyllum, originally erected for cuticle-bearing fossil leaves of subtribe Banksiinae (Proteaceae subfamily Grevilleoideae, tribe Banksieae), is reassessed. Of the 18 described species, nine are accepted within Banksia, including Banksieaephyllum obovatum Cookson & Duigan, which is synonymised with B. laeve Cookson & Duigan on the basis of new cuticular preparations. Two other species are transferred to Banksieaefolia gen. nov., a genus erected for Banksieae of uncertain affinities, and which presently includes only fossils that probably belong to subtribe Musgraveinae. The seven other Banksieaephyllum species lack definitive characters of Proteaceae (i.e. brachyparacytic stomata and annular trichome bases) and do not have Banksieae-type cylindrical trichome bases. These species are, therefore, not accepted as Proteaceae and are transferred to Pseudobanksia gen. nov., together with another fossil Banksia-like leaf species, Phyllites yallournensis Cookson & Duigan. Lectotypes are chosen for Banksia fastigata H.Deane, Banksieaephyllum acuminatum Cookson & Duigan, Banksieaephyllum angustum Cookson & Duigan and Banksieaephyllum laeve Cookson & Duigan. Implications arising from the re-assessment of Banksieaephyllum include clarification of biome conservatism in Banksieae; Banksia has long had an association with relatively open, sclerophyllous vegetation, and Musgraveinae with rainforest. Pseudobanksia and Banksia share convergent traits, but in contrast to Banksia, Pseudobanksia failed to survive the drying climates and increased fire-frequencies of the Neogene.

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TertiaryBluffopollis scabratus(Couper) Pocknall & Mildenhall, 1984 and modernStrasburgeriapollen: a botanical comparison

Cited by 16 publications

References 14 publications

Comparative floral structure and systematics in Crossosomatales (Crossosomataceae, Stachyuraceae, Staphyleaceae, Aphloiaceae, Geissolomataceae, Ixerbaceae, Strasburgeriaceae)

Comparative floral structure and systematics in Crossosomatales (Crossosomataceae, Stachyuraceae, Staphyleaceae, Aphloiaceae, Geissolomataceae, Ixerbaceae, Strasburgeriaceae)

A discontinuous Late Cenozoic vegetation record from a maar crater in Auckland, New Zealand

Fossil leaves of Banksia, Banksieae and pretenders: resolving the fossil genus Banksieaephyllum

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