148 



INDEX 



Macerated tissue, of Tecomu, 12 

 of Tilia, 15, 77 

 of Trifolium, 88 

 of Vitis, 78 



preparation of, 140-141 

 Macrosclereides, in testa of bean, 

 71 

 structure and occurrence of, 68 

 Maljiighian cells, in seed coat of 



legumes, 68 

 Medullary rays, in stem of Arif<- 

 toiochia, 119-120 

 in stem of Pelargoiiaiii. 10!) 

 in stem of Tilia, 116 

 origin of, 105 

 Meristem ring, use of term, 105 

 Meristenuitic tissue, classical con- 

 cept of, 10, 28 

 difficulty of defining, 20-21 

 restricted concept of, 19-20 

 vacuome in cells of, 20, 28 

 Meristems, and open system of 

 growth, 18-19 

 apical, 21-27 

 definition of, 18 

 intercalary, 18 

 lateral, 27-28 



of determinate organs, 19 

 types according to position, 18 

 Metse7)ib)\ita)itliei)i U)ii , water vesi- 

 cles of, 53, 54 

 Mesophyll. of leaf of Piints. 128 

 of leaf of Z('<(, 127 

 structure in Slj/ringa, 125-12() 

 ^[estome sheath, in leaf of Zra. 



127 

 ^Ietai)hi()('iii, 86 

 :\ret:ixyiem. 85, 86, 132 

 Monocotyledons, study of stem of, 



118 

 ^lullciii, dendroid li;iii's of. 53 

 Midtiplc cpidcniiis, contrnslcd 

 with hypoderniis, 50 

 function of, 50 

 material for studv of. 50-51 



Multiple epidermis, occurrence of 

 in angiosperms, 49-50 

 of Ficus elastica, 50-51 

 ontogeny of, 50 

 use of term, 50 



NACRE, use of term, 97 

 Neutral red, for staining vacuome, 

 142 

 use for cambium, 28 

 use for collenchyma. 64 

 use for epidermis, 49 

 use for parenchyma, 59 

 Nicotiana, vessel developmeul in, 



84 

 Nodal anatomy, types of, 102 

 Nucleolus in hair cells, 2 

 Nucleus, disintegration in sieve- 

 tube elements, 95 

 in hair cells, 2 



OAK, libriform fibers of, 78 



tracheids of, 89 



vessel-elements of, 89-90 

 Onion, study of ei)i<lennis of. 4S- 



49 

 Ontogeny, of collenchyma tissue, 

 63-64 



of companion cell, 93 



of epidermis, 45-46 



of fibers, 76-77 



of fibrous thickcniims in I ra- 

 cheae, 84-86 



of leaf, 124 



of leaf traces. 105-106 



(.f Iciiticels, 108 



of multiple epidermis, 49-50 



(d' perforations in vessels, 83-84 



of jx'i'idei'ni, 107-108 



of pits, 12 



of i)rimai'y \as<-u]ar tissues in 

 root, i32 



of scales in SJicjilwrdia, 54 



of sclereides, 68-69 



of sieve-plates, 97 



