词条 | Pityrodia |
释义 |
|image = Pityrodia augustensis (leaves and flowers).jpg |image caption = Pityrodia augustensis |regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Asterids |ordo = Lamiales |familia = Lamiaceae |genus = Pityrodia |genus_authority = R.Br.[1] |subdivision_ranks = Species |subdivision = See text. |synonyms =
}} Pityrodia is a genus of flowering plants in the mint family, Lamiaceae and is endemic to Australia, most species occurring in Western Australia, a few in the Northern Territory and one in Queensland. Plants in this genus are shrubs with five petals joined to form a tube-shaped flower with four stamens of unequal lengths. DescriptionPlants in the genus Pityrodia are evergreen shrubs with erect, usually cylindrical branches. The leaves are simple, net-veined and their bases partly wrap around the stem (decurrent). The flowers may occur singly or in groups and exhibit left-right symmetry. There are 5 sepals which are joined at their bases and 5 petals joined to form a tube. The tube may have 5, unequally sized lobes at the tip or two "lips" - the upper lip having two lobes and the lower one three. There are four stamens with one pair longer than the other. The fruit is a drupe containing up to four seeds.[1][2] Taxonomy and namingThe genus was first described by Robert Brown in 1810. Brown published his description in Prodromus Florae Novae Hollandiae and designated Pityrodia salvifolia as the type species.[3][4] The name Pityrodia is an Ancient Greek word meaning "scale-like".[5] Pityrodia was originally included in the Verbenaceae. In a review of the genus in 1979, Ahmad Abid Munir included Pityrodia and nine other genera in a family Chloanthaceae, all endemic to Australia and sometimes referred to as "Australian Verbenaceae".[1] The name Chloanthaceae has not been widely adopted and Pityrodia is now included in the Lamiaceae.[8]DistributionIn his 1979 paper, Munir described 27 species from Western Australia, 16 from the Northern Territory and one from Queensland,[1] but in 2011, Barry Conn, Murray Henwood and Nicola Streiber transferred some species to Dasymalla, Hemiphora and Quoya and raised a new genus Muniria to which four species of the former Pityrodia were transferred.[6] A new species from Western Australia, (Pityrodia iphthima) has since been described.[7] The species remaining in Pityrodia are:[3] {{div col|colwidth=35em}}
References1. ^1 2 {{cite journal|last1=Munir|first1=Ahmad Abid|title=A taxonomic revision of the genus Pityrodia (Chloanthaceae)|journal=Journal of the Adelaide Botanic Garden|date=1979|volume=2|issue=1|pages=1–138}} {{Taxonbar|from=Q7199568}}2. ^{{FloraBase|name=Pityrodia|id=22004}} 3. ^1 2 {{cite web|title=Pityrodia|url= https://id.biodiversity.org.au/instance/apni/527342|publisher=APNI|accessdate=15 September 2016}} 4. ^{{cite book|last1=Brown|first1=Robert|title=Prodromus Florae Novae Hollandiae|date=1810|location=London|page=153|url=https://www.biodiversitylibrary.org/item/21871#page/381/mode/1up|accessdate=15 September 2016}} 5. ^{{cite book|last1=Brown|first1=Roland Wilbur|title=The Composition of Scientific Words|date=1956|publisher=Smithsonian Institution Press|location=Washington, D.C.|page=683}} 6. ^{{cite journal|last1=Conn|first1=Barry J.|last2=Henwood|first2=Murray J.|last3=Streiber|first3=Nicola|title=Synopsis of the tribe Chloantheae and new nomenclatural combinations in Pityrodia s.lat. (Lamiaceae)|journal=Australian Systematic Botany|date=2011|volume=24|issue=1|pages=1–9|doi=10.1071/SB10039}} 7. ^1 {{cite journal|last1=Shepherd|first1=Kelly A.|title=Pityrodia iphthima (Lamiaceae), a new species endemic to banded ironstone in Western Australia, with notes on two informally recognised Pityrodia|journal=Nuytsia|date=2007|volume=17|issue=1|pages=347–352}} 3 : Pityrodia|Lamiaceae genera|Lamiales of Australia |
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