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Tuesday, 11 November 2014

2. Digitalis leaf

Bot.origin: The dried leaves of Digitalis purprea or Digitalis lanata
F: Scrophulariaceae              
Digitalis purpurea                                             Digitalis lanata
                                         
Active constituent: Cardiac glycosides
Key element (microscopically examination):

                      1. Covering hair: uniserriate (2-7 cells) with collapsed cell                                                                                       2. Glandular hairs
                                      a. unicellular stalk & bicellular head
                                              b. unicellular stalk & unicellular head
                                    c. multicellular stalk & unicellular head
                           3. Anomocytic stomata
    Uses: in heart failure
Microscopically examination of digitalis
Report in the lab.
Anomocytic stomata
Glandular hair
a.


b.


c.
Covering hair










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