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GLOSSARY OF SPECIAL TERMS. 



Lamina. The blade of a leaf, a leaf- 

 like expansion, or a layer. 



Lanceolate. Considerably longer than 

 broad, tapering upward from the 

 middle or below ; lance-shaped. 



Latex. The milky sap of certain 

 plants. 



Leaflet. One of the divisions of a 

 compound leaf. 



Legume. A simple dry fruit dehis- 

 cent along both sutures. 



Lenticular. Lens-shaped. 



Ligulate. Provided with or resem- 

 bling a ligule. 



Ligule. A strap-shaped organ, as the 

 rays in Compositae. 



Limb. The expanded part of a petal, 

 sepal, or gamopetalous corolla. 



Linear. Elongated and narrow with 

 sides nearly parallel. 



Lineolate. With fine or obscure lines. 



Lobed. Divided to about the middle. 



Lobule. A small lobe. 



Lament. A jointed legume, usually 

 constricted between the seeds. 



Loculicidal. Applied to capsules which 

 split longitudinally. 



Lodicules. Minute hyaline scales sub- 

 tending the flower in grasses. 



Lunate. Crescent-shaped. 



Lyrate. Pinnatifid, with the terminal 

 lobe or segment considerably larger 

 than the others. 



Macrosporange. Sporange containing 

 macrospores*. 



Macrospore. The larger of two kinds 

 of spores borne by a plant, usually 

 giving rise to a female prothallium. 



MammiUate. Having breast-shaped or 

 teat-like processes. 



Marcescent. Withering but remain- 

 ing attached. 



Medulla. The pith, the axillary or 

 middle tissue. 



Medullary. Pertaining to the pith or 

 medulla. 



Mericarp. One of the carpels of the 

 Umbelliferae. 



Mesocarp. The middle layer of a 

 pericarp. 



Micropyle. Orifice of the ovule, and 

 corresponding point on the seed. 



Microsporange. Sporange containing 

 microspores. 



Microspore. The smaller of two kinds 

 of spores borne by a plant, usually 

 giving rise to a male prothallium; 

 pollen-grain. 



Midvein (Midrib). The central vein 

 or rib of a leaf or other organ. 



Monadelphous. Stamens united by 

 their filaments. 



Moniliform. Like a string of beads. 



Monoecious. Bearing stamens and 

 pistils on the same plant, but in 

 different flowers. 



Monoicous. (See Monoecious.} 



Monosiphonous. Of a single series 

 of cells, end to end. 



Monstrous. Unusual or deformed. 



Mucronate. With a short sharp ab- 

 rupt tip. 



Mucronulate. Diminutive of mucro- 

 nate. 



Muricate. Roughened with short hard 

 processes. 



Muriform. Like bricks in a wall. 



Muticous. Pointless, or blunt. 



Mycelium. The vegetative part of a 

 fungus. 



Naked. Lacking organs or parts 

 which are normally present in re- 

 lated species or genera. 



Naturalised. Plants not indigenous 

 to the region, but so firmly estab- 

 lished as to have become part of 

 the flora. 



Nectary. A sugar-secreting organ. 



Nemathecium. A wart-like elevation, 

 in certain Algae, containing tetra- 

 spores or other reproductive cells. 



Nitent. Shining, polished, glistening. 



Node. The junction of two inter- 

 nodes of a stem or branch, often 

 hard or swollen, at which a leaf or 

 leaves are usually borne. 



Nodose. Similar to nodes or joints; 

 knotty. 



Nodulose. Diminutive of nodose. 



Nut. An indehiscent one-seeded fruit 

 with a hard or bony pericarp. 



Nutlet. Diminutive of nut. 



Obcordate. Inversely heart-shaped. 



Oblanceolate. Inverse of lanceolate. 



Oblong. Longer than broad, with the 

 sides nearly parallel, or somewhat 

 curving. 



Obovate. Inversely ovate. 



Obovoid. Inversely ovoid. 



Obsolete. Not evident; gone, rudi- 

 mentary, or vestigial. 



Obtuse. Blunt, or rounded. 



Ochreae. The sheathing united stip- 

 ules of Polygonaceae. 



Oclireolae. The ochreae subtending 

 flowers in the Polygonaceae. 



