FIELDS H-I and H-2 

 Columns 29, 30, 31, 

 32, 33, and 34 



01 Antheridium; microgametangium 

 011 Microgamete 



02 Archegonium; oogonium; megagametangium 

 021 Megagamete 



(The symbols beginning with P are not to be used with plants of the phylum Spermatophyta. 

 They represent structures of the sporophyte generation of more primitive plant groups. ) 



(P) (Structure of a sporophyte generation plant) 



PI Sporangium 



P2 Spore (of the sporophyte generation of plants) 



P3 Sporangiophore 



P4 Sporophore 



(Q) (Special plant structures) 



Ql Thallus 



Q2 Mycelium 



S Organ (plant or animal) unspecified. (This symbol is to be used in Field H-2 only, when 



the test compound is applied to an unspecified organ which is not the primary organ in 

 Field H-1 and the coding in Field S-3 does not adequately indicate that the organ to which 

 the test compound was administered is not the organ in Field H-1. ) 



110 



