194 
PHARMACEUTICAL BOTANY 
Fig. 96. — Various forms of pollen grains. Pollen from Typha latifolia (A), 
Zea mays (J5), Ambrosia elatior (C), Lilium philadelphicum ( D ), P inus (£), 
Ranunculus bulbosus ( F ), Carpinus caroliniana ( G), Althcea rosea ( H ), Oenothera 
biennis, ( 7 ). All highly magnified. Drawing by Hogstad. 
