Page 72 - Pharmacognosy-I (02-06-06-102)
P. 72

5- On the outer convex surface bracts and paleae are few,
   narrow, uniseriate multicellular trichomes, each formed of 3
   to 8 very short basal cells and a long terminal cell.

6- The pollen grains are spiny and large 30 to 45 micron.

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