INDEX 



725 



carolinianuni) 296 (Fig. 144) ; coni- 

 planatnni, prothallus of, 334; dichotomnni, 

 sporangial wall, 325 ; imtndatum, 294 ; 

 sporangium of. 313 ; prothallus of, 340 ; 

 embryo of, 351 ; phlegmaria, 293 ; habit 

 of (Fig. 142) ; sporangium of, 313 (Fig. 

 158) ; prothallus of, 342 ; embryo of, 346 

 (Fig. 185); salakense, prothallus of, 340; 

 Selago, frontispiece ; form of, 292 ; spor- 

 angium of, 311; anatomy of, 328; 

 prothallus of, 343 (Figs. 180, 181) ; 

 embryo of, 345 (Figs. 183, 184) ; com- 

 parison of, 363. 



Lycopods, symmetry of, 210. 



Lycopsida, 486. 



L.yginodendron t 705. 



Lygodiitm, 542 (Figs. 301, 302); anatomy, 

 547 (Figs. 306, 307) ; sttbatatum, fertile 

 primordial leaves, 187 ; early fertility, 632. 



Male shield fern, 15. 



Malformations, 481. 



Marattia, external characters, 505 ; sorus, 

 513 (Figs. 278, 283, 285) ; anatomy of, 

 525 ; embryology of, 527 (Fig. 292). 



Marattiaceae, symmetry of, 21 1 ; external 

 characters, 505 ; spore-producing mem- 

 bers, 512; anatomy, 524; embryology, 

 527 ; phyletic position of, 654 (Fig. 354). 



Marchantiales, 257. 



Marsilia, 511 ; Drununondii, 59. 



Marsiliaceae, 551. 



Matonia, see Matonineae ; phyletic position 

 of, 656 (Fig. 354) ; Dipteris series, 618. 



Matonidiunt) 567. 



Matonineae, 564 (Fig. 315); spore-producing 

 members, 565 (Figs. 316, 317) ; anatomy, 

 569 (Fig. 319). 



Medullation in Lepidodendron, 334. 



Megaphylly, secondary in Ferns, 657. 



Megaphyton, 508, 625. 



Megasporangia, of Selaginella, 3 1 7 ; of Isoetes, 

 320. 



Meristele, 190. 



Meristems of Ferns, comparative study of, 

 650. 



Meroblastic segmentation, 66 1, 665. 



Mesarch xylem, of Helininthostachys, 486 ; 

 of Tmesipteris, 486 (Fig. 268). 



Metamorphosis, 157, 151. 



Metzgeria, 266. 



Miadesmia^ 704; membranacea, 301. 



Microdictyon, 567. 



2Z 2 



Microlepia, 596 (Fig. 332), 613, 614. 

 Microsporangiaof6V/</^V/f//a, 317; Rhodes* 



3I9- 



Migration from water to land, 83. 

 Mixtae, 117, 497, 498, 612, 634. 

 Mohria, 542 (Figs. 301, 302); anatomy, 548. 

 Monarch roots in Ophioglossaceae, 458 (Fig. 



256) ; in Lycopods. 259. 

 Monocka, 262 (Fig. 122) ; symmetry of, 204. 

 Monophyllous habit in Ophioglossaceae, 431- 

 Monostele, 190. 



Moss, cauline stelar column, 195. 

 Musci, 272. 

 Mycorhiza, in Cyathea, 240 ; in Neottia 



and SarcodeS) 240 ; in Psilotaceae, 241 ; 



in Ophioglossales, 241, 477; in Lycopods, 



478 ; in Ferns, 478. 

 Mycorhizic symbiosis, its relation to reduction,. 



240. 



) 128. 



Najas, 127. 



Nanomitrium^ 283 (Fig. 140). 



Nephrodium dilatatum, apogamy, 53 (Fig. 



35)- 



hemalion, 67. 

 Nematophycus, 228. 

 Nephrodium Hlix-?nas, 15-25 (Figs. I, 2, 4,. 



5, 6, 9, 10, n); pseudo-mas, v. cristata, 



apogamy and apospory, 56 (Fig. 88) ; 



\.polydactylum, 57, 58 (Fig. 39). 

 Neuropteris, 705. 

 Non-medullated monostele, 339. 

 Non-soral state in Ferns, 633. 

 Notothylas, 269 (Fig. 131). 

 Nuclear division, 47, 48 (Fig. 31). 

 Nutrition of sporophyte, 242. 

 Nutritive cells, 263. 



Octants, theory of, 179. 



Oligocarpia, 554, 560 (Fig. 312); lindsaeoides t 

 $22 (Fig. 289). 



Onagraceae, 96. 



Onoclea, 617 ; sensibilis, 29 (Fig. 13) ; 

 Strut 'hiopteris, differentiation of leaves, 

 169 (Fig. 89). 



Ophioglossales, symmetry of, 212, 430; 

 external characters, 431 ; spore-producing 

 members, 447, 484 ; anatomy, 458 ; em- 

 bryology, 464, 489 ; comparative discus- 

 sion of, 476 ; mycorhiza in, 477 ; not a 

 reduction series, 477 ; origin from sporan- 

 giophoric Pteridophytes, 493. 



