INDEX SECOND. 



Leaves, essential for the increase of the diameter of stems, 346. 



their state in the bud, 448. 



their evolution from the bud, 469. 



are to gems what flowers are to fruit, 475. 



characters of, when growing under water, 581. 



division of their parts, 481. 



proliferous, their structure, 543. 



vascular system of, 548. 



1 skeleton, how formed, 548. 



- cellular system of, 586. 



Leontodon Taraxacum, structure of its root, 437. 

 Leuwenhoek had noticed the interstitial cellular spaces, 691. 

 Liber, its structure, 327. 



is the seat of vitality, 328. 



its importance in grafting, 328. 



Lichens are said to be propagated by the propago, 450. 



Licuala spinosa, size of its leaf, 546. 



Ligneous fibre, components of, 124. 



- stems are not all perennial, 422. 



Lilies resemble the Palms in their growth, 306. 



Lilium super bztm, the attachment of its young bulb, 174. 



candidum, structure of its leaf, 552. 



its cuticular meshes, 605. 



Lime, its use as a manure, 233. 



Lindsay, Mr. his supposition regarding the irritability of Mimosa sensitive* 



375. 

 Link, M. his opinion regarding the structure of cells, 326. 



denies the existence of the cuticular pores, 373. 



his theory of the cuticular meshes objectionable, 604. 



biographical sketch of, 14. 



his definition of a plant, 43. 



fell into an error regarding soils, 211. 



his theory of the formation of wood erroneous, 338. 



his theory of the use of the pith, 375. 



his definition of a gland objected to, 628. 



objections to his definition of the hair, 638. 

 Liriodendron Tulipifera, its beautiful foliation, 473. 

 Ludwtg, his definition of a plant, 42. 



M. 



Magnesian earth, its effect in soils, 215. 



when calcined is hurtful to plants, 234. 



Malpighiy believed in the transmutation of liber, 329. 



his opinion regarding the use of the pith, 376. 



considered the cuticle a simple body, 599. 



his theory of the origin of thorns, 648. 



Malpigbia, peculiar bristle on the leaves of, 643. 

 Manures, in what manner their effects are produced, 23. 

 Marchantia polymorpha, structure of its leaf, 650. 



^ its cuticular apertures, 607. 

 Medicine, Botany useful in, 19. 

 Medulla, its characters, 366. 



its form regulated by circumstances, 367. 



varies in diameter in the same stem, 368. 



- .. peculiarity of, in the Walnut tree, 868. 



