The New Encyclopaedia Britannica: Macropaedia: knowledge in depth. 19 vEncyclopaedia Britannica, Incorporated, 1981 - Encyclopedias and dictionaries |
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Page 882
... usually with ( 1 ) reticulate ( netted ) venation ( pinnate or palmate ) , ( 2 ) seldom sheathed at the base , ( 3 ) petiole usually well developed bracteoles ( when present ) usually 2 , lateral vascular bundles usually borne in a ring ...
... usually with ( 1 ) reticulate ( netted ) venation ( pinnate or palmate ) , ( 2 ) seldom sheathed at the base , ( 3 ) petiole usually well developed bracteoles ( when present ) usually 2 , lateral vascular bundles usually borne in a ring ...
Page 1026
... usually present . Family Neanuridae . Mouthparts modified for sucking , mandibles present or absent ; sensory organs of antennae sim- ple ; ocelli usually present . Family Poduridae . 1 species , Podura aquatica ; hypog- nathous head ...
... usually present . Family Neanuridae . Mouthparts modified for sucking , mandibles present or absent ; sensory organs of antennae sim- ple ; ocelli usually present . Family Poduridae . 1 species , Podura aquatica ; hypog- nathous head ...
Page 1153
... usually conspicuously hairy or papillose ( bearing minute nipple- shaped projections ) within . Petals are usually absent , though in the one genus ( Saruma ) in which they occur they are large and conspicuous . The stamens vary in ...
... usually conspicuously hairy or papillose ( bearing minute nipple- shaped projections ) within . Petals are usually absent , though in the one genus ( Saruma ) in which they occur they are large and conspicuous . The stamens vary in ...
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