312 GLOSSARY. 



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Joinery. The art of framing the finishing work making perma- ' 



nent wooden fittings and coveiing rough lumber. 



Kerf. The cut made by the saw or the width of such cut. 



Lanceolate. Said of leaves when from four to six times as long as 

 broad, the broadest part below the middle and tapering 

 upward or both upward and downward (e. g. Black Willow). 



Larva (pi. larvce). The worm-like stage of insects. 



Layer. A shoot which, while attached to the plant, takes root 

 at one or more places and forms a new plant. 



Leaf-mould. Decayed leaves and other organic matter constitut- 

 ing the forest floor. 



Leaflet. One of the wing divisions of a compound leaf. 



Leather board. A material made from wood pulp and which re- 

 sembles leather in color and texture. 



Legume. A simple pod opening by both ventral and dorsal su- 

 tures; fruit of Pea family (e.g. Locust). 



Leguminous. Pertaining to the family Leguminosce; said of 

 plants bearing legumes. 



Loam. Friable, mellow, rich soil containing much humus. 



Lobe. A projection or division of a leaf not more than half the 

 depth of the wing. 



Lyrate. A pinnatifid leaf of an obovate or spatulate outline with 

 the end lobe large and roundish and the lower lobes small 

 (e.g. Bur Oak). 



Manure. Plant-food, any substance which promotes plant- 

 growth. 



Mono. Prefix meaning one. 



Monoecious. Both staminate and pistillate flowers borne on the 

 same plant (e.g. Black Walnut). 



Mound-layering. Layering by making a mound about a plant 

 (Fig. 27). 



Mulch. Any loose material that protects the soil from frost or 

 evaporation. 



Muskeg. A term commonly applied to sphagnum swamps by the 

 Indians and woodsmen of Northern Minnesota. 



Narrow-leaved trees. Trees with needle- or awl-shaped leaves 

 which expose no great surface to the light. 



Nursery. A plot of ground set apart for the raising of plants 

 that are to be transplanted elsewhere. An establishment 

 for the raising of plants. 



Oblong. About twice as long as broad with nearly parallel sides 



Obovate. The reverse of ovate. 



