Avicennia marina

       · Domain : Eukaryota

· Kingdom : Plantae

· Subkingdom : Viridaeplantae

· Phylum : Tracheophyta

· Subphylum : Euphyllophytina

· Infraphylum : Radiatopses

· Class : Magnoliopsida

· Subclass : Lamiidae

· Superorder : Lamianae

· Order : Lamiales

· Family : Avicenniaceae

· Subfamily : Avicennioideae

· Genus : Avicennia

· Specific epithet : marina

· Botanical name : Avicennia marina

Identification

Main Features : Avicennia is an evergreen tree growing up to 6m in height

Root : Dark brown aerial roots (pneumatophores) that reach beyond the high tide mark. These roots, forming an intrinsic network which can be best seen at low tide.

Leaves : The tree has elliptical, leathery leaves that are dark green on the front and grayish underneath, often crusted over with salt crystals.

Flowers : The tiny flowers are orange with hardy, exserted stamens.

Fruits :  appear as green 'nuts'. When ripe, they drop into the water and the tides wash them to new locations. Young mangrove shoots are easily identified throughout the Sinai coastline.

 

 

 Avicennia officinalis

    · Domain : Eukaryota

· Kingdom : Plantae

· Subkingdom : Viridaeplantae

· Phylum : Tracheophyta

· Subphylum : Euphyllophytina

· Infraphylum : Radiatopses

· Class : Magnoliopsida

· Subclass : Lamiidae

· Superorder : Lamianae

· Order : Lamiales

· Family : Avicenniaceae

· Genus : Avicennia

· Specific epithet : officinalis - L.

· Botanical name : Avicennia officinalis

Identification

Main features : Grows to 25m.

Bark : Young trees are reddish brown and smooth, older trees are grey-brown.

Roots : Pencil-like pneumatophores emerge above ground from long shallow underground roots.

Leaves : Thick, leathery, spoon-like (rounded at tip with edges slightly rolled under), shiny green above, underneath slightly hairy.

Flowers : Small, yellow, several together, forming a cross-shaped inflorescence.

Fruits : Flat capsule containing one seed.

Rhizophora mucronata

· Domain :  Eukaryota

     · Kingdom :  Plantae

· Subkingdom :  Viridaeplantae

· Phylum :  Tracheophyta

· Subphylum :  Euphyllophytina

· Infraphylum :  Radiatopses

· Class :  Magnoliopsida

· Subclass :  Rosidae

· Superorder :  Rhizophoranae

· Order :  Rhizophorales

· Family :  Rhizophoraceae

· Tribe :  Rhizophoreae

· Genus :  Rhizophora

· Specific epithet :  mucronata

· Botanical name :  Rhizophora mucronata

Identification :

Main features  :  An evergreen, much-branched, slow growing shrub or small tree 4 to 6

m tall .

Root :  No prominent aerial roots are present. Twigs are angular and hairy.

 

Bark :   slight grey to brown, flaky in old trees. Leaves are simple, opposite in arrangement, oblong to lanceolate in shape, 0.5 to 2.2 cm long and 0.2 to 1 cm wide, round or bluntly acute at the tip and hairy on both the sides.

Flowers :  Flowers are white or pinkish-white in colour and 0. 7 to 1.0 cm across; calyx is tubular, 12- lobed, green in colour and hairy.Petals are six, white and inserted between calyx lobes.

 

Fruit :  is tubular with rounded apex, about 1 cm long and 0.3 to 0.5 cm wide, densely hairy and green in young and brown when matured. Each fruit contains 20 to 30 small seeds.