INDEX. 



499 



of Jungermannise, 85 ; on the ger- 

 mination of the spores of Junger- 

 mannia?, 83; on the reproduction 

 of mosses, 175 ; on the germina- 

 tion of mosses, 175 ; experiments 

 on the germination of Gymnostomum 

 pyriforme, 175, and of Funaria 

 hygrometrica, 176 ; on the fructifi- 

 cation of Riccia, 97. 



Hemitelia Capensis, frond-like bodies 

 at base of stipes of, 243. 



Henfrey on the impregnation of ferns, 

 261 ; on Marchantia polymorpha, 

 127. 



Hiibener on the pro-embryo of Schis- 

 tostega, 173. 



Hybridity in mosses, 181. 



Hypnum, development of leaves of, 

 142; terminal 'bud of, 129. 



Impregnation in Coniferse, 406 ; 

 Schacht's observations on, 422 ; in 

 Equisetacese, 300; in ferns, 198, de- 

 scribed by Lesczyc-Sumiuski, 258, 

 observations on by Wigand, 259, 

 Hofmeister, 260, Von Mercklin, 

 Mettenius and Henfrey, 261 ; in 

 Isoetes, T 370 ; in Isoetes lacustris, 

 370 ; in mosses, 156 ; in Pellia 

 epiphylla, 34 ; in Pilularia, 323. 



Indusium of ferns, 256. 



Inflorescence of Marchantia, 111. 



Isoetese, peculiarities in the growth 

 of, indicated by H. von Mohl, 336. 



Isoetes, germination of, Mettenius on, 

 337 ; different numbers of furrows 

 in the stem of, 367, and differences 

 of growth in accordance with them, 

 368 ; resemblance of, to Coniferse, 

 in mode of reproduction, 370. 



Isoetes adspersa, leaves of, 363. 



Isoetes Durieui, leaves of, 363. 



Isoetes Hyslrix, leaves of, 363. 



Isoetes lacustris, 335 ; Karl Miiller's 

 observations on the germination of, 

 337. 



Isoetes velata, leaves of, 363. 



Jungermannia, antheridia of, 65 ; 

 archegonia of, 67. 



Jungermannia bicuspidata, calyptra of, 

 79 ; cell-multiplication in stem of, 

 56, 57, 442; elaters of, 78, 79; 

 development of fruit of, 73, 74, 77, 

 78,82; germination of, 52; Gron- 



land on the ramification of the germ- 

 plant in, 54 ; development of leaves 

 in, 59 ; development of perianth in, 

 69 ; shoots of, 64 ; production of 

 spore-mother-cells in, 78, 79. 



Jungermannia connivens, development 

 of leaves of, 59 ; cell-multiplication 

 in stem of, 57. 



Jungermannia crenulata, germination 

 of, 54, 84 ; arrangements of cells 

 in leaves of, 63 ; ramification of 

 prothallium of, 84. 



Jungermannia curta, arrangement of 

 cells in leaves of, 63. 



Jungermannia divaricata, antheridia 

 of, axillary, 73; cell-multiplication 

 in stem of, 56 ; elaters of, 75 ; de- 

 velopment of fruit in, 73, 74, 75, 

 76 ; germination of, 54 ; develop- 

 ment of leaves of, 59 ; development 

 of perianth in, 69 ; spermatozoids 

 of, 67. 



Jungermannia exsecta, cell-multiplica- 

 tion in stem of, 84. 



Jungermamiia trichophylla, develop- 

 ment of fruit of, 77, 82 ; cell-mul- 

 tiplication in stem of, 84. 



Jungermannia?, antheridia of, 87; 

 germination of, 83 ; impregnation 

 of, 73 ; development of leaves in, 

 85 ; variety of forms of leaves in, 

 57; perianth of, 87; ramification 

 of, 64, 85 ; development of spores 

 of, 86. 



Jucgermannise, leafy, development 

 of archegonium in, 67, 68 ; calyx 

 or perianth of, 68 ; spermatozoids 

 of, 67. 



Juniperus, cell-division in anthers of, 

 404 ; corpuscula of, 410 ; develop- 

 ment of endosperm in, 408 ; nu- 

 cleus of, 400. 



Juniperus communis, fecundation of, 

 424. 



Juniperus sabina, fecundation of, 424. 



Karsten on the stems of ferns, 263. 



Kaulfuss on the germination of fern- 

 spores, 257. 



Kunze on the scales of Hemitelia 

 Capensis, 243. 



Kiitziug on the exosporium of Antho- 

 ceros, 17. 



Lantzius-Beninga on the fruit of 

 mosses, 179. 



