7o6 



INDEX 



Sporophyte — Cont. 



origin of, 566, 572 



Pallavicinia, 617 



Pellia epiphylla, 97 



Podomitrium, 617 



Porella, 109 



Pteridophytes, 595 



Riccia, 7,2> 



Sphaerocarpus, 78, 79 



Targionia, 60 



Treubia, 617 

 Stachygynandrum, 522 

 Stangeria, 579 

 "Staubgriibchen," 292 

 Stegocarpae, 216, 217, 227, 623 

 Stele, 464 



medullary (Pteris), 328 



primary (Polypodiaceae), 327 

 Stem, 3, 223, 243, 323, 324, 357, 454, 



455, 519 

 Andreaea, 182 



apical growth, 190, 247, 248, 



262, 284, 459, 494 

 Bryales, 194 

 Dawsonia superba, 222 

 development of vascular 



bundles, 327 

 Equisetum, 459, 460 

 Ferns, 233 

 Lycopodium, 495 

 monostelic, 526, 581 

 Osmundaceae, 359 

 Polypodiaceae, 328 

 Polystelic, 526 

 Polytrichaceae, 222 

 Polytrichum, 221 

 secondary growth, 263 

 secondary thickening, 262, 585, 



586 

 Sphagnum, 172, 173 

 Structure of, 

 Angiopteris, 289 

 Azolla, 411 

 Equisetum, 464 

 fossil Ferns, 587 



Stem — Cont. 



Gleichenia, 369 



Hymenophyllaceae, 378, 379 



Isoetes, 553 



MarsHia, 432 



Matonia, 372 



Ophioglossum, 249, 628 



Osmundaceae, 360 



Salviniaceae, 409 



Schizaeaceas, 386 



Selaginelia, 526 



Struthiopteris, 329 

 vascular bundle, 244, 250, 285, 



326, 330, 369, 496 

 Stephaninoideae, 119 

 Sterilization, 567, 599 

 Stigeoclonium, 121 

 Stigmaria, 589 

 Stipules, 273, 287, 362 



Angiopteris, 290 

 Stolon, 163, 329 



Stomata, 13, 122, 125, 143, 156, 

 165, 180, 211, 212, 213, 

 227, 251, 266, 286, 334, 

 335, 358, 467, 498, 528, 555, 



595 



Anthoceros, 142 



Azolla, 411 



Schizaeaceae, 387 

 Stomium, 343 



Strobiloid Pteridophytes, 598 

 Strobilus, 494, 599, 641 

 Stromatopteris, 339 



moniliformis, 366 

 Struthiopteris Germanica (see Ono- 



clea), 312 

 Sturiella, 583 

 Subsidiary pinnae, 580 

 Succubous leaves, 116 

 Suspensor, 490, 492, 519, 520, 534, 



572, 641 

 Symphyog>'na, 87, 573 ; Fig. 38 

 Synangium, 273, 292, 297, 300, 303, 



508 

 Synthetic types, 583, 588 



