566 NEW ENGLAND TREES IN WINTER. 



Keeled. With a central ridge like the keel of a boat. 

 Key. A winged fruit. 



Lanceolate. Lance-shaped ; similar to ovate but narrower with outline 

 tapering gradually to the apex. 



Lateral bud. A bud produced on the side of a twig. 

 Leaf bud. A bud containing undeveloped leaves but not flowers. 

 Leaf -scar. The scar left by the fall of the leaf (fig.4). 

 Leaf-stalk. The stem of a leaf. 



Lenticels. Corky spots on the surface which admit air to the interior of the 

 twig. 



Limbs. The larger branches. 



Linear. Long and narrow, several times as long as broad with parallel 

 edges, as the leaves of the Pines. 



Lobed. With rounded indentations running % to % the way from the margin 

 inward. 



Longitudinal. Lengthwise. 



Medullary rays. Rays of tissue extending from the pith toward the bark, 

 best seen in cross section. 



Midrib. The central vein of a leaf. 

 Naked bud. A bud without bud-scales. 

 Needle. A narrow leaf as in the Pines. 



Node. The place on the twig at which one or more leaves were produced 

 (fig.4). 



Nut. A large hard fruit as in the Hickory, Oak and Chestnut. 



Nutlet. A. small nut. 



Oblanceolate. Inverted lanceolate. 



Oblong. Two or three times longer than broad with about uniform diameter. 



Obovate. Inverted ovate. 



Opposite (leaves and leaf-scars). With two leaves or leaf-scars opposed 

 at a node. 



Oval. Broadly elliptical. 



Ovary. The part of the pistil producing the seeds. 



Ovate. Egg-shaped, with the broadest part below the middle. 



Persistent. Remaining on the tree. 



Pistil. The seed-bearing portion of the flower. 



Pith. The softer central portion of a twig. 



Pod. A dry fruit which splits open at maturity. 



Pome. A fruit like the Apple or Pear. 



Pungent. Sharp to the taste. 



Pyramidal. Shaped like a pyramid with broadest portion at the base. 



Raceme. A simple cluster of stalked flowers arranged along an elongated 

 axis. 



Resin-duct. A tube for the conduction of resin seen in the leaves of the 

 Pines. 



Sapwood. The young living wood outside the heartwood. 



