i io SCIENCE PRIMERS. [xxvn. 



CLASS II. MONOCOTYLEDONS. 



DIVISION I. Flowers with a distinct perianth. 

 SUB-DIVISION I. Perianth superior. 



Order Orchidea. Orchis, helleborine, lis.era. 

 Order Iridece. Crocus, iris, gladiolus. 

 Order Amaryllidecz. Narcissus, snowdrop. 

 Order Dioscorea. Black bryony. 



SUB-DIVISION 2. Perianth inferior. 



Order Betulacea. Birch, alder. 



Order Alismacece. Water plantain, flowering rush. 



Order Liliacea. Asparagus, butcher's broom, lily of the valley, 

 Solomon's seal, squill, star of Bethlehem, onion, fritillary, 

 tiger lily, tulip, colchicum, crown imperial, hyacinth. 



Order Juncea. Rush, wood-rush. 



DIVISION II. Flowers without a distinct perianth. 



Order Aroidea. Cuckoo-pint. 



Order Typhacea. Bur reed, reed mace. 



Order Cyperacea. Bulrush, cotton-grass, galingale, sedge. 



Order Grammes. Foxtail -grass, canary grass, vernal grass, 

 bent grass, millet grass, oat, reed, cocksfoot grass, couch 

 grass, meadow grass, quaking grass, fescue grass, broom 

 grass, wheat, barley, rye. 



SERIES II. Gymnosperms. Flowering plants with the 

 ovules naked. Woody tissue destitute of vessels (except that 

 of first year). 



Order Cotoifertz. Juniper. * pine, yew, cypress, arbor-vitse, 

 * cedar, * larch, * spruce. 



