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''Verticordia verticordina'' is a species of flowering plant in the Myrtaceae family. It is a low growing shrub, with greenish-white flowers, that occurs near the southern coast of Western Australia. The habit of this small shrub with many basal stems is spreading to prostrate. The floral leaves are between 5 and 10 millimetres long and similar to those of the stem; these are semicircular in cross section, giving a fleshy appearance. The flowers are pale and greenish-cream, browning as they age on the plant. The cream coloured sepals, 3.5 mm long and elliptic, have almost undivided, ragged and papery, slightly hairy, or entire margins. The petals have several cilia structures at their margins, are cream, 3 mm long, and have an oval shape that tapers to a point. The hypanthium is hairy, ovules are two and the long style, 15 mm and tapering, is slightly bearded below the apex. It does not possess a lignotuber. The fleshy appearance of leaves and flowers, and almost entire margin of the sepal, distinguish this plant from other species of ''Verticordia''. Variously placed within the Myrtaceae family, the species shares characteristics with two closely related genera. ''Verticordia verticordina'' was originally named ''Chamelaucium verticordinum'' in the description by Ferdinand von Mueller (1864),〔Mueller, F.J.H. von (1864), Fragmenta Phytographiae Australiae 4(27): 57 "In rupibus ad promontorium Cape Le Grand. Maxw."〕 then transferred to ''Darwinia'', as ''D. verticordina'', by George Bentham the following year.〔Bentham, G. (1865) Journal of the Linnean Society, Botany 9: 181 (nov. )〕 The Latin term ''verticordina'' translates as resembling ''Verticordia''. When Alex George transferred the species into that genus in 1991, with some reservations, its specific epithet was conserved.〔George, A.S. (1991) New taxa, combinations and typifications in Verticordia (Myrtaceae: Chamelaucieae). Nuytsia 7(3): 377 (nov. )〕 The plant shares characteristics with two other species in the same region, ''V. oxylepis'' and ''V. longistylis'', these are contained in ''Verticordia'' sect. ''Infuscata'', although it also resembles small species of ''Darwinia''. George's infrageneric placement is within ''Verticordia'' subg.'' Verticordia'' as the sole member of section ''Verticordia sect. Elachoschista'', which has the unusual or unique characteristics; fleshiness, unlobed sepals, prominent staminodes, and wet habitat. The arrangement may be summarised as: :Genus ''Verticordia'' ::Subgenus ''Verticordia'' :::Section ''Verticordia'' :::Section ''Corymbiformis'' :::Section ''Micrantha'' :::Section ''Infuscata'' :::Section ''Elachoschista'' ::::''V. verticordina'' :::Section ''Pencillaris'' :::Section ''Pilocosta'' :::Section ''Catocalypta'' :::Section ''Platandra'' :::Section ''Recondita'' :::Section ''Intricata'' The specimens used for the description of this species were collected by George Maxwell at Cape Le Grand National Park. Several populations are recorded in the Esperance Plains region, between Esperance and Israelite Bay, occurring on or near coastal granite outcrops in wet and sandy clay. It is sometimes found growing in heath with ''Verticordia plumosa'' var. ''grandiflora'' The state's Department of Environment and Conservation has placed this species on the Declared Rare and Priority Flora List as P3, small and poorly surveyed populations that may be declared rare. == References == * * * 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Verticordia verticordina」の詳細全文を読む スポンサード リンク
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