(botany) The single family of the plant order Plantaginales.
Plantaginaceae
| Sci-Tech Dictionary: Plantaginaceae |
(′plan·tə·jə′nās·ē′ē)
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Note: click on a word meaning below to see its connections and related words.
The noun has one meaning:
Meaning #1:
cosmopolitan family of small herbs and a few shrubs; most are troublesome weeds
Synonyms: family Plantaginaceae, plantain family
| Wikipedia: Plantaginaceae |
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 Plantago major
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See text. |
The Plantaginaceae Juss. or plantain family, is a family of flowering plants in the order Lamiales. The type genus is Plantago L..
In older classifications it used to be the only family of the order Plantaginales, but numerous phylogenetic studies, summarized by the Angiosperm Phylogeny Group, have demonstrated that this taxon should be included within the Lamiales.
The plantain family as traditionally circumscribed consisted of only three genera, Bougueria, Littorella, and Plantago. However, new phylogenetic research has indicated that Plantaginaceae s.s. (s.s. = sensu stricto, in the strict sense) is nested within several genera previously included in Scrophulariaceae (but not including the type genus, Scrophularia). Although Veronicaceae (1782) is the oldest family name for this group, Plantaginaceae (1789) is a conserved name under the International Code of Botanical Nomenclature (ICBN) and thus has priority over any earlier family name within the circumscription of any group containing Plantaginaceae. Furthermore, the ICBN does not consider family names published before 1789 to be names eligible for conservation, thus ruling out Veronicaceae. The name Antirrhinaceae has been proposed for conservation over Plantaginaceae. In the meantime, the Angiosperm Phylogeny Group has accepted the name Plantaginaceae. However, Olmstead (2003) has chosen to use the name Veronicaceae.
The Plantaginaceae s.l. (s.l. = sensu lato, in the broad sense) is a most diverse, cosmopolitan family, occurring mostly in temperate zones. It consists of herbs, shrubs and also a few aquatic plants with roots (such as the genus Callitriche). Being so diverse, the circumscription of this family is difficult to establish.[1]
The leaves are spiral to opposite and simple to compound. Unusual in Lamiales is the absence of vertical partitions in the heads of the glandular hairs.
The structure and form of the flowers can be very variable. Some genera are 4-merous (i.e. with 4 sepals and 4 petals), such as Aragoa (but this one has 5 sepals); others are 5-8-merous, such as Sibthorpia. The flowers of most genera are polysymmetric. The corolla is often two-lipped. In some taxa, the androecium is formed before the corolla.
The fruit is a capsule that dehisces through the partitions between the cells. In Veronica this partition is in the length; in species of Antirrhineae the dehiscence releases the pollen through the pores at the tip of the anther; or it may come about through a transverse circular line around the capsule.
A group of genera including Lindernia has recently been segregated [1][2] as the family Linderniaceae [3], and recognized by Haston et al. 2007, (also known as LAPG II) as "Post-APG II family". [4]
Genera
The enlarged Plantaginaceae s.l. / Veronicaceae consists of 90 genera and about 1,700 species. The largest genus is Veronica with about 450 species. Veronica also includes the genera Hebe, Parahebe and Synthyris, formerly often treated as distinct. All genera of Plantaginaceae were formerly included in Scrophulariaceae except where otherwise stated.
- Acanthorrhinum
- Achetaria
- Adenosma
- Albraunia
- Amphianthus
- Anarrhinum
- Angelonia
- Antirrhinum - Snapdragon
- Aragoa
- Artanema also placed in Linderniaceae [5]
- Asarina
- Bacopa - Water Hyssop
- Basistemon
- Benjaminia
- Besseya (now included in Veronica)
- Bougueria (sometimes included in Plantago[1])
- Brookea
- Bryodes
- Bythophyton
- Callitriche - Water Starwort (formerly in Callitrichaceae)
- Campylanthus
- Chaenorhinum
- Chelone
- Chionohebe (now included in Veronica)
- Chionophila
- Cochlidiosperma (now included in Veronica)
- Collinsia
- Conobea (now included in Picria) also placed in Linderniaceae [2]
- Cymbalaria
- Detzneria (now included in Veronica)
- Digitalis - Foxglove
- Dintera
- Dizygostemon
- Dopatrium
- Ellisiophyllum
- Encopella
- Epixiphium
- Erinus
- Galvezia
- Gambelia
- Geochorda
- Globularia (formerly belonging to Globulariaceae)
- Gratiola - Hedge Hyssop
- Hebe (now included in Veronica)
- Hemiphragma
- Herpestis
- Hippuris - Mare’s-tale (formerly in Hippuridaceae)
- Holmgrenanthe
- Holzneria
- Howelliella
- Hydrotriche
- Isoplexis (now included in Digitalis)
- Kashmiria
- Keckiella
- Kickxia - Fluellen
- Lafuentea
- Lagotis
- Limnophila
- Limosella - Mudwort => Scrophulariaceae according Oxelman et al. 2005 [2]
- Linaria - Toadflax
- Littorella (often included in Plantago[1])
- Lophospermum
- Mabrya
- Maurandella
- Maurandya
- Mecardonia
- Melosperma
- Microcarpaea
- Misopates
- Mohavea
- Monocardia
- Monopera
- Monttea
- Neogaerrhinum
- Nothochelone
- Nuttallanthus
- Otacanthus
- Ourisia
- Paederota
- Parahebe (now included in Veronica)
- Penstemon - Beardtongue
- Philcoxia
- Picria also placed in Linderniaceae [5]
- Picrorhiza (including Neopicrorhiza)
- Plantago
- Poskea (formerly belonging to Globulariaceae)
- Psammetes
- Pseudorontium
- Rhodochiton
- Russelia
- Sairocarpus
- Schistophragma
- Schweinfurthia
- Scoparia
- Scrofella
- Sibthorpia
- Stemodia
- Synthyris - Kittentails (now included in Veronica)
- Tetranema
- Tetraulacium
- Tonella
- Uroskinnera
- Veronica - Speedwell, Brooklime
- Veronicastrum
- Wulfenia
- Wulfeniopsis
References
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- ^ a b c d Albach, D. C., Meudt, H. M. & Oxelman, B. 2005. Piecing together the "new" Plantaginaceae. American Journal of Botany 92: 297–315.
- ^ a b c Oxelman B., Kornhall, P., Olmstead, R. G. & Bremer, B. (2005). "Further disintegration of Scrophulariaceae". Taxon 54(2):411–425.
- ^ Rahmanzadeh, R., K. Müller, E. Fischer, D. Bartels & T. Borsch. 2005. The Linderniaceae and Gratiolaceae are further lineages distinct from the Scrophulariaceae (Lamiales). Pl. Biol. ( Stuttgart) 7: 67-78.
- ^ Haston, E., Richardson, J. E., Stevens, P. F., Chase, M. W., Harris, D. J. (2007). "A linear sequence of Angiosperm Phylogeny Group II families". Taxon 56 (1): 7–12.
- ^ a b GRIN "Germplasm Resources Information Network". Agricultural Research Service. http://www.ars-grin.gov/cgi-bin/npgs/html/gnlist.pl?2234. Retrieved 2007-08-14.
- Olmstead, R. G., dePamphilis, C. W., Wolfe, A. D., Young, N. D., Elisons, W. J. & Reeves P. A. (2001). "Disintegration of the Scrophulariaceae". American Journal of Botany 88: 348–361. doi:. PMID 11222255. http://www.amjbot.org/cgi/content/full/88/2/348.
- Olmstead, R. G. 2003. Whatever happened to the Scrophulariaceae? Fremontia 30: 13-22 (available online here).
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- Plantago
- Plantaginales (magnoliophyta)
- plantain (plant)
- Lamiales (magnoliophyta)
