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Morphology of Cacti - Subfamily Cactoideae, Tribe – Cereeae Salm-Dyck 1845

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Habit

Treelike or shrubby, sometimes climbing (Anderson 2001).

Stems

Unsegmented, elongate to globose, ribbed, spiny; reproductive zones usually differentiated into terminal or lateral cephalia

Leaves

Absent

Areoles

 

Flower

Usually borne laterally, nocturnal or diurnal; pericarpels usually with a few scales or naked

Fruits

Berrylike, fleshy, dehiscent or indehiscent, often with persistent floral parts that turn black

Seeds

Small to large, oval, lacking conspicuous surface sculpturing; hilum and micropyle conjunct, appendages absent

Glochids

Absent

Spines

 

Roots

Fibrous or tuberous roots; Adventitious roots

Metabolism

CAM - Crassulacean acid metabolism (Anderson 2001).

Neoteny or paedomorphosis

Absent

Distribution

Mostly in eastern South America

  

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