INDEX. 



501 



Marsilea p?ibescens, 318 ; macrospore 

 of, 325 ; germination of, 326. 



Mercklin on the archegonia of ferns, 

 261 ; on vessels in the protliallium 

 of ferus, 207. 



Mettenius on the growth of Botry- 

 chium 310, 311 ; on the impregna- 

 tion of ferns, 261 ; on the stems of 

 ferns, 263 ; on the spermatozoids of 

 Isoeles lacustris, 342 ; on the spores 

 and germination of Isoeles and 

 Selaginella, 337 ; on the germina- 

 tion of 0| hioglossum, 315 ; on the 

 Rbizocarpese, 335 ; on the spores 

 of Salvinia natans, 330; on the pro- 

 thallium of Selaginella, 392 ; on 

 abortive archegonia in Selaginella, 

 395 ; on the spores of Selaginella, 

 390. 



Metzgeria furcata, cell-multiplication 

 in stems of, 84 ; Nageli on the 

 growth of, 41. 



Meyer on spermatozoids of Aneura, 



87. 



Micheli, on Marchantia polymorpha, 

 123. 



Microsporangia of Selaginella, 391. 



Microspores of Isoetes lacustris, struc- 

 ture of, 341, production of sperma- 

 tozoids by, 342 ; of Salvinia nutans, 

 331 ; of Selaginella, 391, 394. 



Milde, description of the antheridia and 

 spermatozoids of Equisetacese, 306; 

 observations on the archegonium of 

 Equisetaceee, 306. 



Mirbel, on the pro-embryo of the 

 Coniferse, 433 ; on Marchaniia 

 polymorpha, 123. 



Mnium horn urn, paraphyses of, 153. 



Mohl, H. von, on the formation of the 

 septa of the spore-mother-cells in 

 Anthoceros, 16 ; on chlorophyll 

 bodies, 146 ; on the bark of ferns, 

 215 ; on the structure of the stems 

 of ferns, 262 ; on the vascular 

 bundles of ferns, 225 ; on the 

 growth of Isoetese, 336 ; on the 

 development of the spores of Jun- 

 germannise, 86 ; ou Marchantia 

 polymorpha, 124 ; on the fruit of 

 mosses, 179 ; on the sporangia of 

 Selaginella, 387. 



Moonwort, 307. 



Morison on the growth of Scolopen- 

 driurn officinarum from spores, 257. 



Mosses and liverworts, not natural 



equivalent groups, 436 ; classfica- 

 tion of, 437. 



Mosses, alternation of generations in, 

 434, 435 ; antheridia of 152 ; arche- 

 gonia of, 148 ; development of fruit 

 of, 156; abnormal fruit in, Gum- 

 bel's observations on, 180 ; ger- 

 minal vesicle of, 150 ; germination 

 of spores of, 170 ; impregnation of, 

 156 ; pocket at base of leaves of, 

 143 ; spore-mother-cells of, 160 ; 

 growth of stems of, 129 ; so-called 

 stigma of, 151. 



Mother-cell, persistence of, in Equise- 

 tacese, 291. 



Miillcr, Karl, on the germination of 

 Isoetes lacustris, 337. 



Muller, II., on the stipules of Selagi- 

 nella, 378. 



Nageli, on chlorophyll-bodies, 145 ; 

 on the archegonia, antheridia, and 

 spermatozoids of ferns, 258 ; on 

 the spermatozoids of ferns, 1S9; 

 on the stems of ferns, 202 ; on 

 cell-multiplication in the stems of 

 JungermanniaB, 84 ; on Marchantia 

 polymorpha, 124; on the growth of 

 Metzgeria furcata, 41 ; on the ger- 

 mination of mosses, 176; on the 

 leaves of mosses, 147 ; on the pro- 

 embryo of mosses, 172 ; on cell- 

 multiplication in the leaves of 

 Phascum, Bryum, Hypnum, and 

 Polytrichum, 1 42 ; on the produc- 

 tion of spermatozoids in Pilularia, 

 335 ; on cell-multiplication in leaves 

 of Sphagnum, 140 ; on cell-multi- 

 plication in apex of stem of Sphag- 

 num, 130. 



Neckera complanata, antheridia of, 

 153. 



Nees von Esenbeck, on Anthoceros, 

 19 ; on the germination of the 

 spores of the Jungermannise, 83 ; 

 on the ramification of Jungerman- 

 nise, 85 ; on Marchantiese, 122. 



Nephrolepis, adventitious buds and 

 stolons of, 247. 



Nephrolepis splendens, vegetation of, 

 245 ; apical cell of terminal bud of, 

 248. 



Nephrolepis tuberosa, 247. 



Nephrolepis undulata, apical cell of 

 terminal bud of, 248; vegetation 

 of, 245. 



