AIZOACEAE............................pptx

Silpa559854 181 views 20 slides May 21, 2024
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AIZOACEAE............................pptx


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AIZOACEAE

MOLLUGO PENTAPHYLLA

TRIANTHEMA PORTULACASTRUM

MOLLUGO, GIESEKIA

TRIANTHEMA PORTULACASTRUM TRIANTHEMA PORTULACASTRUM

Habit and leaf form.  Small shrubs, or herbs.  ‘ Normal’ plants, or plants of very peculiar vegetative form ;. Leaves well developed (usually), or much reduced.  Plants   succulent/non succulent .

The herbs annual, or perennial; with a basal aggregation of leaves, or without conspicuous aggregations of leaves. Leaves minute to medium-sized; alternate, or opposite (or in false whorls); shortly petiolate to sessile; Lamina entire; one-veined, or pinnately veined, or palmately veined. Leaves stipulate, or exstipulate .  

Plants hermaphrodite (usually), or monoecious (rarely), or dioecious (rarely). Floral features   Flowers solitary, or aggregated in ‘inflorescences’; when aggregated, in cymes, or in heads.. Inflorescences cymes and heads .   Flowers  small, or medium-sized; regular;  not resupinate ;  cyclic ;  pentacyclic to polycyclic . Hypogynous disk present, or absent.

Perianth   sepaline , or with distinct calyx and corolla (1–)4–5(–20), or 20–120 (if the staminodes are interpreted as petals).

Calyx (1–)4–5(–8); 1 whorled; gamosepalous (nearly always), or polysepalous regular, or unequal but not bilabiate fleshy; persistent; imbricate, or valvate (rarely). Corolla of 5–120 (of staminodal origin); 1–6 whorled.

Androecium  (3–)4–5, or 8–10, or 15–200 (i.e. to ‘many’, by branching). Androecial members commonly branched or unbranched ; when branched/many, maturing centrifugally;

when coherent 3–9 adelphous or 1 adelphous (the filaments basally connate into bundles, or forming a short monadelphous sheath); 1–16 whorled ( i.e to ‘many whorls’).

Androecium including staminodes (nearly always), or exclusively of fertile stamens (i.e. occasionally no staminodal ‘petals’). free of one another, or coherent;

Staminodes when present, 3–120 (usually numerous); external to the fertile stamens; petaloid . Stamens (1–)5, or 6–120 (i.e. to ‘many ’); reduced in number relative to the adjacent perianth (rarely), or isomerous with the perianth , or diplostemonous to polystemonous .

Gynoecium  (1–)2–5(–20) carpelled .   Gynoecium   syncarpous (rarely pseudomonomerous ) ; superior to inferior. Ovary (1–)2–5(–20) locular . Gynoecium non- stylate to stylate . Styles 1–20 (or absent); apical, or apical to lateral ( excentric ). Stigmas (1–)2–5(–20);

Placentation   when unilocular (i.e., rarely) parietal ; when plurilocular , axile (typically), or basal (rarely), or axile to apical (e.g.  Galenia ), or parietal ( Mesembryanthemum   sensu lato ). Ovules (1–)50 per locule ;

Fruit  fleshy (rarely), or non-fleshy; dehiscent, or indehiscent;  a capsule, or a berry . Capsules loculicidal , or valvular , or septicidal , or circumscissile .  Seeds   non-endospermic . 

Species 1100. Genera 126;   Common species. Trianthema ,  Mollugo , Giesekia Economic uses, etc.  Edible fruit from  Mesembryanthemum edule  ( Hottentot fig).