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Published In: Species Plantarum 1: 475. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 5/8/2022)
Acceptance : Accepted
Project Data     (Last Modified On 5/30/2018)
Contributor Text: J. Osborne & R. Borosova
Contributor Institution: Royal Botanic Gardens, Kew.

 

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Deciduous or evergreen shrubs or small trees, often with thorns. Buds perulate. Leaves alternate, simple, petiolate, stipulate. Leaf blade usually lobed, rarely unlobed, margin serrate or crenate, rarely entire. Leaves of fertile shoots often differ from those of elongate vegetative shoots. Inflorescence a terminal corymb-shaped cyme or thyrse, flowers rarely solitary. Flowers 5-merous, bisexual. Hypanthium open, obconical to campanulate. Sepals persistent, rarely caducous. Petals white, pink or red, orbicular to obovate. Stamens 5-25, inserted on a disc-like rim. Stylodia1-5(-6), terminal. Carpels pubescent, lower part dorsally adnate to hypanthium. Ovules 2 per carpel, basal. Fruit a pome, ± globose, yellow, orange, red, purple or black, flesh juicy to dry and mealy, rim of hypanthium persistent at apex, hypostyle (free, apical part of the pyrenes) glabrous or pilose. Pyrenes 1-5(-6), thick-walled, 1-seeded. Seed with thin testa.

A genus of 100-200 species, distributed in northern temperate regions and Central America; represented in Pakistan by 4 species.

 

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1.

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Stylodia and pyrenes usually 1 or 2.

2

 

 

Stylodia and pyrenes 5.

3

 

2.

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Stylodia and pyrenes mainly 2 (sometimes 1 or 3); subterminal leaf blade of flowering shoot with 3-4 pairs of lobes and basal pair of sinuses in the basal 3/10 to 2/5 of lamina length.

 

 

 

 

 

1. C. songarica

 

 

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Stylodia and pyrenes mainly 1 (rarely up to 4); subterminal leaf blade of flowering shoot with 1-3 pairs of lobes and basal pair of sinuses in the basal 1/3 to 3/5 of lamina length.

 

 

 

 

 

2. C. pseudo-heterophylla subsp. turkestanica

 

3.

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Young branchlets and inflorescence tomentose, hypanthium densely villous, pomes villous particularly at apex and base.

 

 

 

3. C. clarkei

 

 

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Young branchlets, inflorescence, hypanthium and pomes glabrous.

 

 

4. C. wattiana

 
 
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