DECIMAL CLASSIFICATION 
633 Field crops: grains, grasses, fibers, etc. 
SUMMARY 
Cereals, grains 
Grasses 
Legumes 
Root crops 
5 Piber crops 
6 Sugar plants and starch 
7 Alkaloidal plants 
8 Perfumes, spices, condiments, etc. 
,0 Other plants 
Cereals Grains 
Wheat 
Buckwheat 
Oats 
Rye 
Corn, maize 
Barley 
Millet, sorghum, etc. 
Millet 
Panic gras 
Prosos 
Sorghum 
For sweet sorghum see 633.62 
Broom corn 
Shallu 
Kafir, milo maize 
White kafir, blackhul kafir, red kafir 
Durra, Jerusalem corn 
Yellow milo, brown durra, white durra, rice corn, white Egyptian corn, 
Egyptian corn 
Rice 
Other 
Forage crops: grasses 
Clas here general treatises on forage crops. Divided according to Hackel 
Blue gras Poa 
Orchard gras Dactylis 
Red top, bent gras Agrestis 
Timothy Phleum 
Cereal grasses Divided like 633.1 Cereals 
Other cultivated grasses 
Bermuda gras Cynodon 
Bromus 
Rye gras Lolium 
Fescues Festuca 
Oat gras Arrhenatherum 
Paspalum 
Phalaris 
1 
261 
262 
263 
264 
2635 
266 
267 
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