GLOSSARY OF TEEMS. 401 



Ligule, the stipule of grasses. 

 Limb, the expanded part of the corolla. 

 Linear, flat, very narrow, with the edges parallel, f. 41. 

 Lobed, divided into segments, with rounded margins, f. 52. 

 Lyre-shaped, pinnatifid, with the terminal segment rounded and 

 larger, f. 48. 



Membranous, very thin, dry, and easily torn. 



Monoecious, when stameiiiierous flowers and pistilliferous flowers 



exist on the same plant. 

 Monopetalous corolla, consisting of one petal or piece, f. 117. 



Naked flower, destitute of a calyx. 

 Naked stem, or leaf, without hairs. 



Naturalized plants, those originally introduced from another coun- 

 try, but now become wild. 



Nectary, a part of the flower which contains or secretes honey. 

 Needle-shaped leaves, linear and evergreen. 

 Neutral flowers, destitute of both stamens and pistils. 

 Notched leaf, or petal, ending with a small notch, f. 56. 

 Nut, a seed covered with a hard shell, which does not burst, f. 141. 



Obtuse, rounded at the end. 



Oblong, when the length is three or four times greater than the 



breadth, and the end rounded. 

 Opposite leaves, or other parts, coming off on opposite sides at the 



same place, f. 23. 



Oppositely pinnate leaf, with opposite leaflets, f. 77, 78, 79. 

 Orbicular, round and flat. 

 Oval, the length greater than the breadth, and both ends alike 



rounded, f. 37. 



Palmate leaf, having several oblong segments, extending to the 



middle, f. 53. 

 Panicle, when the flowers are in a kind of loose subdivided cluster, 



f. 104. 

 Panicled stem, with irregular branches, which are themselves 



irregularly divided, the last divisions bearing flowers. 

 Papilionaceous corolla, of four petals, resembling a butterfly, f. 128. 

 Papillous, covered with small soft prominences. 

 Partial involucre, at the base of a partial umbel. 

 Partial umbel, the secondary division of an umbel. 

 Pectinate, pinnatifid, with the segments very narrow, f. 50. 

 Pedate leaf, a ternate leaf, having its lateral leaflets divided into 



several others, f. 76. 

 Peduncle, a slender body by which the flower is connected with 



the stem or branch. 



Peltate leaf, when the stalk is inserted into the middle, f. 35. 

 Pendulous, hanging. 



Perfect flowers, having both stamens and pistils. 

 Perfoliate, when the stem, as it were, runs through a leaf, f. 32. 

 Perianth, a calyx contiguous to the corolla, or other internal parts 



of the flower, f. 1 10. 

 Pericarp, the seed-vessel. 



Permanent leaves, remaining unaltered during winter. 

 Persistent calyx or corolla, remaining until the fruit is ripe. 



