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GLOSSARY 



Involucrate With an involucre- 



Involucre The group of leaves or 

 scales just below a head of flow- 

 ers, as in the sunflower, or some- 

 times below a single flower or 

 cluster 



Irregular Applied to a flower in 

 which the petals are unlike 



Keel The two fused lower petals 

 of the flower of the pea family 



Keeled Ridged like the keel of a 

 boat 



Lance-linear Narrowly lance- 



shaped 



Lanceolate Lance-shaped 



Lance-ovate Between lance- 



shaped and egg-shaped 



Leaflet The division of a com- 

 pound leaf 



Lemma The outer and lower scale 

 of a grass flower 



Ligule A ribbon-shaped corolla, 

 as in the rays of a sunflower head 



Linear Line-like, long and nar- 

 row, with the sides nearly parallel 



Linear-oblong Between line-like 

 and oblong 



Lip The upper and lower halves 

 of an irreguler corolla or calyx, as 

 in the snapdragon ; the irregular 

 petal of an orchid 



Lobe A division of a simple leaf 



Lobed With the margin more or 

 less cut or divided 



Loment A pea-pod deeply con- 

 stricted between the seeds 



Margined With a flat border 



Mealy Covered with a white meal 



Median In the middle 



Membranous Membrane-like, pa- 

 pery 



Monoecious Bearing stamens and 

 pistils in different flowers of the 

 same plant 



Mottled With large irregular 

 spots 



Nectary A pad of tissue, sack, spur 

 or other structure producing or 

 containing nectar 



Nerve One of the lines or ridges 

 running through a leaf 



Netted-veined With veins run- 

 ning in various directions and con- 

 necting with each other 



Neutral Without stamens or pistil 



Nut A dry, one-seeded, non-split- 

 ting fruit with a stony shell or 

 covering 



Nutlet A small nut 



Ob- A prefix meaning reversed or 

 inverted 



Obconic Reversed cone-shaped 



Oblanceolate Reversed lance- 



shaped, with tip downward 



Oblique Slanting, uneven 



Oblong About twice as long as 

 broad, the sides nearly parallel 



Obovate Reversed egg-shaped, the 

 tip downward 



Obovoid More or less inverted 

 egg-shaped 



Obpyramidal Reversed pyramid- 

 shaped 



Obtuse Blunt 



Odd-pinnate With an odd or un- 

 paired leaflet at the tip of a com- 

 pound leaf 



Opposite Of leaves, directly a- 

 cross from each other ; of flower 

 parts, in front of 



Orbicular Round 



