696 



INDEX 



Marchantiales — Cont. 

 gametophyte, 20 

 rhizoids, 23 

 Marchantieae, 69 

 Marchantites, Sezannensis, S77 

 Marsilia, s, 417, 418, 419, 423, 435, 

 439, 442, 637 

 antheridium, 420 

 embryo, 426 



germination of spores, 418 

 leaf, 429, 432 

 macrospore, 422 

 microspores, 418 

 stem-structure, 432 

 tubers, 433 



vascular bundle of stem, 433 

 /Egyptiaca, 418 



Drummondii, 424, 429, 432, 433 

 hirsuta, 433 

 polycarpa, 432 

 quadrifolia, 433 ; Fig. 255 

 salvatrix, 433 



vestita, 418, 421, 422, 424, 429, 

 432, 434 ; Figs. 243, 244, 24s, 

 247, 248, 250, 253 

 Marsiliaceas, 7, 234, 310, 311, 396, 

 417, 441, 603 

 embryo, 426 



female prothallium, 422, 423, 424 

 fertilization, 425 

 germination of spores, 7, 418 

 roots, 433 

 sporocarp, 434 

 Massula, 398, 415 

 Mastigobryum, 117 



trilobatum. Fig. 61 

 Matonia, 371, 580, 584, 636 

 affinities, 372 

 stem-structure, 372 

 pectinata, 371, 372; Fig. 213 

 sarmentosa, 371 

 Matoniaceae, 310, 311, 371, 584 

 Mechanical tissues, 565, 566 

 Medullary rays, 261, 263, 590 

 Medullary steles, 328 



Medullosa, 585 



Megaceros, 620, 621 



Megasporangium, see Macrosporan- 

 gium 



Megaspore, see Macrospore 



MesophyU, 266, 334, S28 



Mesospore, 513, 560 



Mesozoic, 582, 583, 584, 587 



Mesozoic fossUs, 580 



Metaxylem, 244 



Metzgeria, 14, 72, 85, 88, 95, 99, 

 114, 116, 121, 314, 349, S93, 

 607, 615, 618 

 furcata, 87, 94 

 pubescens, 85 ; Fig. 37 



Metzgeriaceae, 74, 615 



Metzgerieae, 75 



Microsporangiimi, 414, 415, 417, 

 438, 524, 532, SS8, SS9 



Microspores, 179, 538 

 Marsilia, 418 



Middle lobe, 58 



"Mittelhaut,"443 



Mittenia, 615, 617 



Mixtae, 312 



Mnium, 161, 373 



archegonium, 202 

 affine, 622 

 cuspidatum, 164, 202 



Mohria, 384, 385, 386 



Monoclea, 21, 23, 42, 48, 70, 71, 

 609, 613, 614 

 Forsteri, 70 

 Gottschei, 70 



Monocotyledons, 142, 548, 561, 59°, 

 60s 



Monoselenium, 614 



Monostelic stem, 526, 581 



Morkia, 617 



Mosses, 2, 3, 8, 9, 10, II, 12, 14, 20, 

 31, 60, 74, 103, 109, 116, 119, 

 120, 131, IS7, 160, 161, 178, 

 182, 188, 190, 193, 229, 230, 

 231, 30s, 372, 565, 566, 568, 

 57°, S77, 578, 594, S9S 



