692 



INDEX 



Helminthostachys, 234, 270, 295, 



Z02,, 304, 346, 365, 366, 440, 

 602, 626, 634 

 gametophyte, 241, 626 

 sex-organs, 242 

 sporangiophore, 272 

 sporophyte, 271 

 Zeylanica, 270; Figs. 126, 141 

 Hemiphlebium, 380, 381 (see also 



Trichomanes) 

 Hemitelia capensis, 580 

 Hepaticae, 8, 9, 10, 11, 13, 14, 33, 

 44, 72, 120, 121, 122, 131, 

 132, 138, 142, 159, 160, 164, 

 166, 178, 187, 201, 202, 226, 

 227, 229, 241, 300, 302, 303, 

 305, 316, 565, 577, 592, 593, 



594, 595 

 antheridium, 12, 16 



apical cell, 15 



archegonium, 12, 16 



chromatophores of antherid- 

 ium, 17 



classification, 20 



germination of spores, 19 



interrelationships, 157 



mucilage cells, 15 



sex-organs, 15 



spermatozoid, 17 



spores, 19 



spore-formation, 19 



sporophyte, 18 

 Hepaticae foliosae, 112 

 Heterangium, 584, 585 

 Heterophyllum, 522 

 Heterosporous ferns, 306, 396, 603 

 Heterosporous Lycopodineae, 510 

 Heterosporous Pteridophytes, 



gametophyte, 603 

 Heterospory, 6, 7, 396, 585, 586, 



590, 604 

 Hippochaete, 479 

 Homoeophyllum, 522 

 Homologous alternation of genera- 

 tions, 569, 570, 571 



Homosporeae, 485 

 Homosporous ferns, 597 

 Homosporous Leptosporangiatae, 



346 

 Hydropterides, 234, 307, 310, 311, 



396, 441, 584 

 Hygroscopic movements, 213, 344, 



443 

 Hymenophyllaceae, 306, 307, 310, 

 311, 369, 372, 373, 440, 441, 

 570, 581, 584, 603, 636 

 archegonium, 377 

 embryo, 377 

 gametophyte, 373 

 leaf, 380 

 root, 381 



sexual-organs, 376 

 sporangium, 381, 382 

 stem-structure, 378, 379 

 vascular bimdles, 380 

 Hymenophyllites, 439, 584 

 Hymenophyllum, 308, 362, 373, 374, 

 376, 383, 597; Figs. 215, 

 216, 217 

 gemmae, 375 

 demissum, 381 

 dilatatum, 380 



recurvum, 379; Figs. 219, 220 

 scabrum, 379, 380 

 Hymenophyton, 87, 573, 636 



flabellatum. Fig. 3S 

 Hymenostomum, 218 

 Hypnum, 161, 578 

 Hypoderma, 223, 330, 334 



Incubous leaves, 116 

 Indusium, 298, 392, 395, 439 

 Intercalary branches, 117 

 Intine, 5, 19, 443 

 Involucre, 77, 98 

 Iron Pyrites, 576 

 Isoetaceae, 536 

 Isoetales, 233, 536 

 Isoetes, 304, 401, 534, 536, 590, 

 604, 605, 642 



