5II-Ca-Oxalate Crystals What is Calcium Oxalate Crystals?It is formed in plant to get rid of excess calcium salts,where it reacts with oxalic acid formed by metabolism of carbohydrates.Calcium oxalate precipitates in different shapes & sizes .Calcium oxalate is of great importance in identification & differentiation of different plants.
6II-Ca-Oxalate Crystals Mount :Powder + Chloral hydrate
7II-Ca-Oxalate Crystals Calcium oxalate precipitates in different shapes & sizes .Prisms: ex: Quillaia2. Clusters: ex : Rhubarb3. Raphides: ex : Squill
9III-Trichomes(Hair) Types of Hair a)Non glandular hair b)Glandular hair1)Simple hair2)Multicellular hair1)Unicellular stalk,unicellular head2)Unicellular stalk,multicellular head3)Multicellular head multicellular stalk4)Branched hair
10III-Trichomes(Hair) Types of Hair: A) Non glanduler hair: 1) Simple hair:a- Warty Cuticle hair (senna)b-Cystolyth hair (Cannabis)
11III-Trichomes(Hair) Types of Hair: A) Non glanduler hair: Cont.Types of Hair:A) Non glanduler hair:2) Multicellular:Uniseriate: (formed one row of cells)* Conical shaped hair (Datura Strammonium)* T-shape hair (Pyrethrium)* Collapsed hair (Digitalis)
12III-Trichomes(Hair) Types of Hair: B) Glanduler hair: Cont.Types of Hair:B) Glanduler hair:Unicellular stalk,Unicellular head (Digitalis)2) Unicellular stalk,Multicellular heada) Digitalisb) Mentha”Labiaceous hair”
13III-Trichomes(Hair) Types of Hair: B) Glanduler hair: Cont.Types of Hair:B) Glanduler hair:3) Branched hair (Hyocymus)4) Multicellular stalk,Multicellular head”Shagy hair” (Cannabis)
15IV-Pollen Grains Stomata: Each stomata consists of two guard cells which guards the osteole.
16IV-Pollen Grains Types of Stomata: 1.Anisocytic stomata: Stomata is surrounded by three or four epidermal cells one of which is smaller than the others ex : solanaceae2.Anomocytic stomata :Stomata is surrounded by the same epidermal cells ex : digitalis leaf
17IV-Pollen Grains Types of Stomata: 3. Paracytic stomata : Stomata is surrounded by two epidermal cells with their long axis parallel to that of the osteole ex : Senna4. Diacytic stomata :Stomata is surrounded by two epidermal cells with their long axis at right angle to that of the osteole ex : peppermint
19III-Trichomes(Hair)Senna (Paracytic stomata,warty cuticle hair and Crystal sheath of Ca oxalate)Mentha (Labiaceous hair and Diacytic stomata)Datura Strammonium (cluster layer of Ca oxalate, non glandular hair and Anisocytic stomata)Digitalis (glandular & non glandular hair,Anomocytic stomata)Pyrethrium (pollen grain and T-shaped hair)Quillaia (prism)