506 



INDEX. 



Struthiopteris germanica, adventitious 



shoots of, 247 ; vegetation of, 245. 



Suspensor of Coniferse, Hartig on, 433. 



Syinpodium of Pteris aquilina, 224, 



"225. 



Targionia, 102, 



Targionia hypophylla, archegonia of, 

 IIS ; calyptra of, 11? ; elaters of, 

 120; fruit of, 119; development of 

 leaves of, 110; spore-mother-cells 



of, 120 ; vegetative organs of, 102. 



Tax us, corpuscula of, 410 ; develop- 

 ment of endorsperm of, 409 ; fecun- 

 dation of, 422 ; nucleus in, 400. 



Thuja,, corpuscula of, 410 ; develop- 

 ment of endorsperm in, 410; nucleus 

 of, 400. 



Thuja' occidentalism cell-division in an- 

 thers of, 404. 



Thuja orientalis, fecundation of, 424. 



Tlmret, on the sperm atozoids of Archi- 

 dium, 169 ; observations on the 

 antheridia of Equisetacese, 306 ; on 

 the spermatozoids of ferns, 189, 

 259; on Marchantieae and their 

 motile spermatozoids, .128 ; on the 

 spermatozoids of mosses, 177 ; on 

 the spermatozoids of Pellia epi- 

 phylla, 31. 



Trichocoled tomentella, cell-multiplica- 

 tion in stem of, 56. 



Unger, motile spermatozoids first seen 

 in Marchantia by, 127 ; on the 

 spermatozoids of mosses, 176 ; on 



fructification of Riccia, 97 ; on the 

 antheridia of Sphagnum, 177. 



Yaginula of mosses, 189. 



Valentine on the archegonia of mosses, 

 177 ; on the reproduction of mosses, 

 178. 



Vascular-bundles of the stem of Aspi- 

 dium filix-mas, 228, 229, 230, 231 ; 

 formation of, in stems of Equisetum, 

 273 ; production of, mlsoetes lacus- 

 tris, 352 ; of stem of Niphobolus, 

 251 ; of Opkioglossum vulgatum, 

 314; of the stem of Platycerium 

 alcicorne, 253 ; of the stem of Poly- 

 podium aureum and P. vulyare, 251 ; 

 in the stem of Pteris aquilina, 213 ; 

 in the stipes of fronds of Pteris 

 aquilina, 215 ; arrangement of, in 

 frondless shoots of old plants of 

 Pteris aquilina, 225 ; of Salvinia 

 nutans, 334 ; of stem of Selaginella, 

 382. 



Vaucher, observations on the germina- 

 tion of Equisetaceae, 304. 



Vegetation of Isoetes, compared with 

 that of other vascular cryptogamia, 

 371. 



Vessels, formation of, in stem-bud of 

 Pteris aquilina, 217 ; scalariform, 

 of Pteris aquilina, 220. 



Wigand, on the growth of the second 

 frond in ferns, 207 ; observations on 

 the impregnation of ferns, 259 ; on 

 the roots of ferns, 203 ; on the 

 spermatozoids of ferns, 187* - 



PRINTED BY J. E. ADLARD, BARTHOLOMEW CLOSE, LONDON. 



