Lgrate; a, pinnatifid leaf with the lobes successively and gra,- 

 dually enlarging from the petiole, and ending in one still 

 larger lobe. 



Marcescent ; feding but remaining in its places ■' 



Medullary ; relating to the pith. Mediulary rays are plates of 



cells which connect the pith with the growing part next to 



the bark. 

 Membranous ; of the texture of membrane ; thin and flexible. 

 Mericarps ; the carpels of Umbelliferse. i 



Midrib ; the large vein extending along the middle of' a leaf 



from its petiole nearly oi quite to the other end.: 

 'MionUiform ; cylindrical but constricted at regular intervals. 

 Monocotyledonom ; having one sheathing cotyledon. 

 Manmcious ; with the sexes in separate flowers on the same 

 ;j.^., plant. ■ ' 



Monosepalous ; monopetcdous ; when the sepals or petals are 



joined by their edges so as apparently to forin one. 

 Mucronate ; abruptly tipped with a short point of the same 



r texture. 

 Midtifld ; divided into many parts. 

 Muricate ; covered with short sharp points. 



Nectary ; an organ which secretes honey. , 



Netted; covered with lines connected together like network. 

 Node ; a point in a stem where a leaf is produced; a joining. 

 Nut ; a, hard dry 1-seeded superior pericarp,; ;also used for a 

 glins, a hard dry 1- or few-seeded inferior pericarp not 

 , bursting and seated in a cupUk-e involucre, e. g. acorn. 



Ob ; in conjunction with terms means inverted ; as obavate is 



ovate with the attachment at the narrow end. 1 



Oblong ; long oval, equally broad at each end. 

 Ocrea ; a tubular membranous stipule surrounding the stem. 

 Opaque ; not shining. 

 Opposite; when two similar organs grow one on, each side of 



some body ; or different organs are opposed to each other 



veith a stem between them. 

 Orbicular ; nearly round and flat. 

 Oval; an ellipse; a figure rounded at each end, not broader at one 



end than at the other, and about twice as long as broad. 

 Ovary ; the young seed-vessel. ■ ■ • 



Ovate; eggshaped; a short flat figure (thin like a leaf) iather 



broader below the middle of its length. ■ 



Ovoid; a solid eggshaped figure. ; 



Ovule; the young seed. 



