702 



INDEX 



Riccia — Cont. 



antheridium, 31, 33 



apical cell, 38 



archegonium, 29, 31 



calyptra, 36 



dichotomy, 27 



embryo, ss 



rhizoids, 28 



sex-organs, 28 



spermatozoids, 33, 610 



spore-division, 35, 610, 611 



sporophyte, ^2>, 34 



thallus, 24, 25, 28 



ventral lamellae of thallus, 26 

 Bischoffii, 30 

 crystaUina, 27 

 fluitans, 24, 27, 39, 610 

 Frostii, 610 

 glauca, 23, 29, 36, 610; Figs, i, 



2, 3, 4, 5, 6 

 trichocarpa, 24, 29, 30, 36, 67, 

 610; Figs. 4, 5, 6, 7, 8, 9 

 hairs, 39 

 Ricciaceae, 17, 18, 24, 41, 46, 47, 



59, 71, 75 

 adventive buds, 27 

 classification, 39 

 germination, 36 

 Ricciocarpus, 8, 40, 41, 42, 564, 610, 

 611 

 air-chambers, 39, 40, 610 

 monoecious reproduction, 40 

 sexual organs, 40 

 terrestrial form, 40 

 ventral lamellae, 40 

 natans, 39, 610; Fig. 10 

 RieUa, 8, 73, 75, 83 

 structure, 84 

 Americana, 84 ; Fig. 36 

 helicophylla, 84 ; Fig. 36 

 Root, 3, 4, 6, 9, 157, 230, 243, 257, 

 271, 284, 287, 288, 290, 323, 



335, 357, 428, 454, 455, 469, 

 472, 498, 519, 530, 552, 556, 

 566, 568, 575 



Root — Cont. 



adventive, 498 



apical cell, 359 



apical growth, 363 



Azolla, 411 



Botrychium, 259, 266 



branching, 499 



budding from, 258, 339 



development, 336, 337 



dichotomy, 258, 556 



Equisetum, 469 



exogenous, 470 



Hymenophyllaceae, 381 



Marattiacese, 288, 630 



MarsUiaceae, 433 



Muscineae, 9 



Ophioglossum, 252, 253, 254, 



626, 627, 629 

 origin, 569 



Osmundaceae, 362, 363, 364 

 primary, 456, 492 

 primary (Azolla), 406 

 primary (Onoclea), 325 

 primary (Osmunda), 359 

 secondary, 339, 472, 498 

 Selaginella, 529 

 sieve- tubes, 338 

 Stigmaria, 589 

 vascular bundle, 254, 287, 337, 



47I5 499, 530, 629, 631 

 Root-buds, 574 

 Root-hairs, 286, 412, 498 



Salvinia, 339, 396, 398, 400, 401, 

 402, 403, 406, 409, 417, 439, 

 636, 637 

 antheridium, 398 

 leaves, 411 

 prothallium, 403 

 sporocarp, 412, 415 

 natans; Figs. 233, 238 

 Salviniaceae, 234, 307, 311, 396, 

 441, 603 

 gametophyte, 398 

 stem-structure, 409 



