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Publicado en: Genera Plantarum 159–160. 1789. (4 Aug 1789) (Gen. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Datos del Proyecto Nombre (Last Modified On 6/2/2011)
Aceptación : Accepted
Datos del Proyecto     (Last Modified On 6/3/2011)
Contributor Text: ZAFFAR ALI
Comment/Acknowledgements: Acknowledgements: We are grateful to the United States Department of Agriculture for financing this research under P.L. 480. Thanks are also due to Messrs B. L. Burtt, I. Hedge, and Miss J. Lamond of the Royal Botanic Garden, Edinburgh, and Mr. A.R. Smith of the herbarium, Royal Botanic Garden, Kew, for their helpful suggestions.

 

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Trees, shrubs, undershrubs or perennial herbs. Leaves exstipulate, simple, alternate, opposite, or whorled, sometimes imbricate and appressed to the stem. Flowers axillary solitary or in terminal or axillary clusters, racemes or panicles, bisexual, actinomorphic or slightly zygomorphic, floral parts situated on or below a fleshy disc. Calyx 4-7-lobed, persistent. Corolla 4-7-lobed, usually gamopetalous, campanulate, saucer--shaped or urceolate, sometimes sepals and petals not distinguishable. Stamens often as many or twice as many as petals; free or adherent at base of corolla,, anthers sometimes spurred; dehiscing by apical pores or slits. Ovary inferior or superior, typically 5, sometimes 4-10-locular; placentation axile; ovules numerous; style often simple; stigma capitate. Fruit capsular; dehiscence loculicidal or septicidal. Seeds minute, numerous, endospermic. A family of about 50 genera and 1350 species, mostly inhabiting the temperate regions of the northern and southern hemispheres, less often sub-arctic and tropical. In West Pakistan the plants are confined to the mountains in the north.
 

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1 Leaves alternate or clustered, not appressed to the stem (2)
+ Leaves imbricate, appressed to the stem Cassiope
2 (1) Evergreen trees or shrubs or shrublets. Capsule without corky thickenings on the sutures (3)
+ Deciduous trees. Capsule with corky thick enings on the sutures Lyonia
3 (2) Stem wiry. Flowers solitary or in racemes. Calyx in fruit succulent Gaultheria
+ Stem not wiry. Flowers in terminal clusters. Calyx in fruit not succulent Rhododendron
 
 
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