6.50 



INDEX 



Pteris aquilina, 305, 309, 394; Fig. 



231 



cretica, 308, 309, 336, 570; Figs. 

 171, 187 

 Ptilioidese, 119 

 Ptychocarpus, 582 

 pulvinus, 292 

 pyrenoid, 13 

 Pythium, 239, 487 



quadrant wall, 322 

 quadripolar spindle, 98 

 Quergestrecktezellen, 360 



Radula, iii, 112, 114, 183; Fig. 59 

 Reboulia, 42, 56, 58; Fig. 20 

 receptacle, 70 



Fimbriaria, 58 

 reduction of chromosomes, 477 

 regeneration, 570 



]\Iarchantiaceae, 69 

 Renaultia, 583 

 reproduction 



non-sexual (Leptosporangi- 

 ates), 307 



non-sexual (mosses), 162 

 reproductive organs 



Cyathodium, 



Alonoclea, 70 



Riella, 84 

 resting spore, 563, 567 

 resume, 



^larchantiales, 71 

 Rhacopteris, 582 

 Rhizocarpese, 234, 396 

 rhizogenic buds, 470 

 rhizoids, 14, 19, 20, 27, 27, 39, 66, 67, 

 69, 72, 86, 102, 121, 123, 144, 160, 

 161, 162, 168, 170, 182, 183, 188, 

 190, 194, 221, 230, 276, 314, 347, 

 374, 564, 565, 566, 569, 575 



Marchantiacese, 42, 70 



^larchantiales, 23 



]\Iuscinese, 9 



Riccia, 28 

 rhizome 



Psilotum, 505 



Struthiopteris, 329 

 rhizophores, 522 



Rhodea, 579 

 Rhodophycese, 562 

 Rhyncostegium murale, 160 

 Riccia, 12, 14, 15, 18, 21, 24, 42, 46, 

 47, 49, 50, 53, 54, 55, 59, 60, 64, 66, 

 ^7, 71, 7^, 77, 78, 81, 90, 157, 158, 

 563, 566, 567, 592, 596 



antheridium, 31, 2)2> 



apical cell, 38 



archegonium, 29, 31 



calyptra, 36 



dichotomy, 27 



embryo, 2>2> 



rhizoids, 28 



sex-organs, 28 



spermatozoids, 32 



spore-division, 35 



sporogonium, 34 



sporophyte, 33 



thallus, 24, 25, 28 



ventral lamellae of thallus, 26 

 (Riccia) Bischoffii, 30 

 crystallina, 27 

 fluitans, 24, 27, 39 

 glauca, 23, 29, 36; Figs, i, 2, 3, 4, 



5,6 

 trichocarpa, 24, 29, 30, 36, 6y ; 



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



hairs, 39 

 Ricciocarpus, 8, 41, 42, 564 



air-chambers, 39, 40 



monoecious reproduction, 40 



sexual organs, 40 



terrestrial form, 40 



ventral lamellae, 40 

 natans, 39; Fig. 10 



structure, 27 

 Ricciaceje, 17, 18, 24, 41, 46, 47, 59, 



71, 75 



adventive buds, 27 



characters, 21 



classification, 39 



germination, 2>^ 

 Riella, 8, 73, 75, 83 ; Fig. 36 



structure, 84 

 helicophylla, 84 

 root, 3, 4, 6, 9, 157, 230, 243, 257, 271, 

 284, 287, 288, 290, 323, 335, 357, 

 428, 454, 455, 469, 472, 49S, 519, 



