2 7 2 



INDEX 



Laticiferous cells, 73 ; vessels, 73 



Leaf- scar, 83 



Leaf-trace of Fern, 158 



Leaves, origin of, 47, 49, 68 ; of 



Dicotyledons, 76 ; of Pinus, 143 ; 



of Fern, 156, 171 ; fall of leaf, 



83 



Lenticels, 52 

 Lepidium, 241 

 Leukoplasts, 128 

 Lignified walls, reactions of, 25 

 Ligule, 150 

 Lilac, apex of, 50 

 Lime, sieve tubes of, 71 

 Limiting layer of Fucus, 203 

 Linum, 94 

 Lupinus luteus, 1 29 

 Lychnis, flower of, 109 

 Lycopodinae, 150 



MACROSPORANGIA, 119, 147, 151 



Macrospores, 120 



Maize, see Zea 



Male branches, Marchantia, 193 



Male inflorescence, Pine, 145 



Male Shield Fern, 156 



Manubrium, 214 



Marchantia, 189, &c. 



Mares -tail, see Hippiiris 



Measurement of objects, 15 



Medullary rays, Elm, 56, &c. ; of 



Pine, 137, &c. 

 Mesophyll, 78 ; Maize, loi ; Pine, 



143 ; Fern, 171 

 Micrometer, 15 

 Micropyle, 120, 125, 147 

 Microsporangia, 117, 146, 151 

 Microspores, 117, 146 

 Monocotyledons, vegetative organs 



of, 95 



Mounting objects, 9 

 Mucilaginous walls, 55 

 Mncor, 244 

 Mucorinese, 244 

 Musci, 179 

 Mushroom, 226 

 Mycelium, of Mushroom, 226 ; of 



Aspergillus, 236 



NECK OF ARCHEGONIUM, Pinus 

 148 ; Fern, 176 ; of Moss, 184 ; 

 of Marchantia, 1 95 



Nectary, 108 



Nephrodium, 156, &c. 



Nerves, 77 



Nifella, 23, 210 



Nucellus, 1 20, 147 



Nucleus, 1 8, 27, 28 



(Edogonitim, 216 



Oil, 130 



Oogonium, of Fuciis, 207 ; of 



Chara, 214 ; ot CF^dogonium, 



218; of Vaucheria, 220; of 



Pythium, 243 

 Oophyte, of Selaginella, 155 ; of 



Fern, 173; of Moss, 180 

 Oosphere, see Ovum 

 Oospore, of Vaucheria, 220 ; of 



Pythium, 243 

 Operculum, 180, 187 

 Ostiole of Fucus, 206 

 Ovary, 109 

 Ovule, of Angiosperms, 109, 119; 



of Pine, 147, 

 Ovuliferous scale, 146 

 Ovum of Angiosperms, 120 ; of 



Pine, 148; of Fern, 176; of 



Moss, 184 ; of Marchantia, 195 ; 



of Fticus, 207 



PALISADE PARENCHYMA, 78, 80 



Paraffin, 9 



Paraphyses, of Mosses, 183 ; of 



Agaricus, 229 

 Perianth, 1 12 

 Periblem, 68, 93, 106 

 Pericambium, see Pericycle 

 Pericarp, 126 

 Perichsetia, 179, 183, 194 

 Pericycle, 86, 104, 144, 152, 161, 



164 



Periderm, 52 

 Peridium, 233 

 Perigonium, 179, 183 

 Perigynium, 196 

 Peristome, 1 80, 187 



