Pharmacognosy lab helper

                                  TYPES OF STOMATAS

DIACYTIC 

PARACYTIC

ANISOCYTIC

                                         STARCH

                           TRANSCERSE SECTIONS

SPECIMEN PREPARATION

I-slide mounting
A- chloral hydrate for Clarifying your field ???? after heating release Nasent chlorine
B- water for Dusting powders

II-Staining or Histochemical reaction
A- Lignin in lignified elements
•Ex. Fibers, stone cells
•Phloroglucinol + HCL conc. give red colour)

B- oils
Sudan III giive red colour

C- many different reactions