biform
Example Sentences
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Leaves in fascicles of 3, from 12 to 25 cm. long; resin-ducts medial, sometimes with an internal duct, hypoderm biform, endoderm with thin outer walls.
From The Genus Pinus by Shaw, George Russell
Leaves binate, from 10 to 15 cm. long; resin-ducts medial, hypoderm biform.
From The Genus Pinus by Shaw, George Russell
Leaves binate or ternate, from 3 to 7 cm. long; resin-ducts medial, or with an occasional internal duct, hypoderm biform.
From The Genus Pinus by Shaw, George Russell
Among Hard Pines there is no Old World species with a biform hypoderm.
From The Genus Pinus by Shaw, George Russell
Leaves ternate, from 8 to 16 cm. long; resin-ducts medial or with one or more internal ducts, hypoderm biform.
From The Genus Pinus by Shaw, George Russell