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Banksia victoriae
Species of shrub or tree in the family Proteaceae endemic to Western Australia
Species of shrub or tree in the family Proteaceae endemic to Western Australia
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Banksia victoriae, commonly known as woolly orange banksia, is a species of large shrub or small tree in the plant genus Banksia. It occurs in Western Australia between Northampton, Western Australia and Kalbarri, with the occasional plant further north as far as Zuytdorp Nature Reserve.
Description
B. victoriae typically grows as a tall shrub, but older plants sometimes attain a tree habit, growing as high as seven metres. It has smooth grey back and densely hairy stems. Leaves are 15 to long and 2.5 to wide, with deep triangular lobes and woolly surfaces. Flowers occur in typical Banksia "flower spikes", inflorescences made up of hundreds of pairs of flowers densely packed in a spiral about a woody axis. B. victoriae's inflorescence is orange, 7 to long. After flowering, up to 30 follicles develop in the flower spike. These are usually concealed by withered flower parts, which persist on the spike for a long time.
Taxonomy
Discovery and naming
The first known specimens of B. victoriae may have been seeds sent to England in the early 1830s. These seeds were distributed to a number of gardens, and by 1835 three gardens had successfully raised plants to flowering: the Royal Botanic Garden Edinburgh, the garden of George Percy, 5th Duke of Northumberland, and that of Henry Berens of Sidcup. In that year, the second of these was painted by Sarah Drake, and included as Plate 1728 in Edwards's Botanical Register. In the accompanying text, John Lindley identified the plant as B. speciosa (Showy Banksia), but commented "We found neither the whiteness of the under side of the leaves, nor the faintness of the veins, which are supposed to be characteristic of the species". Doubts were raised about the identity of the species in 1857, when Walter Hood Fitch painted B. victoriae based on a cut flower provided by David Moore of Glasnevin Botanical Garden. Fitch's painting appeared as Plate 4906 in Volume 82 of Curtis's Botanical Magazine, and was accompanied by the text: "There can, I think, be no doubt of its being the same with the B. speciosa above quoted in the Bot. Reg., but not the B. speciosa of Br. and Hook., Bot. Mag. t. 3052; and equally certain does it appear to be the B. Victoriæ of Meisner." Thus it was implied that 1835 plate was in fact B. victoriae, a suggestion that was supported by George Bentham in his treatment of the species in his 1870 Flora Australiensis.
Despite this possible early collection, it would not be until 1850 or 1851 that James Drummond collected the plant material upon which would be based the formal publication of B. victoriae. He collected the species only once, probably from near the Hutt River, and his material was sent to England as part of Drummond's sixth collection. In 1855 Carl Meissner published a formal description of the species in Hooker's Journal of Botany and Kew Garden Miscellany, referring to it as "a noble species, very near B. speciosa, but easily distinguished by the segments of the leaves being larger, flat, not white underneath, nor scrobiculate above, etc.". He named it in honour of Queen Victoria; thus the full name for the species is Banksia victoriae Meisn. He appears to have been unaware of the 1835 plate that would later be attributed to B. victoriae.
The common name is woolly orange banksia.
Infrageneric placement
Although Meissner did not proffer an infrageneric placement for B. victoriae in his 1855 publication of the species, he did so the following year in his chapter on the Proteaceae for A. P. de Candolle's Prodromus systematis naturalis regni vegetabilis. Under Meissner's taxonomic arrangement of Banksia, B. victoriae was placed in section Eubanksia, series Dryandroideae. This arrangement stood until 1870, which George Bentham published his arrangement, in which he placed the species in section Orthostylis.
In 1891, Otto Kuntze, in his Revisio Generum Plantarum, rejected the generic name Banksia L.f., on the grounds that the name Banksia had previously been published in 1776 as Banksia J.R.Forst & G.Forst, referring to the genus now known as Pimelea. Kuntze proposed Sirmuellera as an alternative, referring to this species as Sirmuellera victoriae. This application of the principle of priority was largely ignored by Kuntze's contemporaries, and Banksia L.f. was formally conserved and Sirmuellera rejected in 1940.
Bentham's arrangement stood for over a century, before being superseded by Alex George's revision, published in his 1981 monograph The genus Banksia L.f. (Proteaceae). George placed the species in Banksia subgenus Banksia, section Banksia, series Crocinae. This placement was rejected by Kevin Thiele and Pauline Ladiges in 1996; their arrangement, which was based on a cladistic analysis of morphological features, discarded Crocinae altogether, instead placing B. victoriae in series Banksia, subseries Cratistylis, alongside B. burdettii (Burdett's Banksia). However, George did not accept this revision, and overturned it in his 1999 monograph for the Flora of Australia series.
Under George's taxonomic arrangement of Banksia, B. victoriae placement may be summarised as follows:
:'*Genus *Banksia''''' ::'*Subgenus *Banksia''''' :::'*Section *Banksia'''''
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