338 



INDEX 



Hypoderris^ 309 



Hypolepis^ 268, 274 ; sorus of, 273 



Indusia of Schizaeaceae, 173 



Indusial protection, 3 



Indusium (cup-like) of Cyathea^ 300 ; of Cy- 

 atheaceae, 307 ; of Hemitelia, 300 ; of 

 Hymenophyllaceae, 242, 249 



"Inversicatenal" type, 38 



Juvenile \ea.i oi Leptopteris, 128 (Fig 417); 

 of Dipteris conjugata, 313 (Fig. 570); 

 of D. Lobbiana, 313 (Fig. 569); of 

 Glekhenia, 194 (Fig. 473); oi Marsilea, 

 179 (Fig. 461); of Osmunda regalis^ 

 127 (Fig. 416) 



Kaulfussia, 95, 125 



Kidstonia^ 153; sporangia of, 151 



K. heraclietisis^ sporangium of, 169 (Fig. 



454) 

 Klukia, 153, 168 



K. extlis, fertile pinnule of, 169 (Fig. 453) 



Laccopteris^ 7, 224, 226 



L. Woodwardi, 226 (Fig. 503) 



Leaf, apices of, 2; morphology of, 2; meri- 

 stele of, 2; oi Ane?ma, 156 (Fig. 440); 

 sterile, oi Botrychium Limaria, 46 (Fig. 

 338); of Dipteris conjugata, 315 (Fig. 

 573) ; oi Loxsoinopsis notabilis^ 252 (Fig. 

 520); of Mohria caffroriim^ 155 (Fig. 

 439); of Opkioglosstnn vtilgatum^ 67 

 (Fig. 363); oi Osmunda Presliana^ 130 

 (Fig. 419); of Thyrsopteris elegans^ 261 

 (Fig. 527); venation of, 2 



Leaf-construction, Sphenopieris-iy^e. of, 

 248 



Leaf-insertion oi He/mmthostachys, 53 (Fig. 

 346) 



Leaf-segments of Dipteris qinnqnefurcata, 

 314 (Fig. 572) 



Leaf-trace, Clepsydroid, 2,7 ; in Ophioglossutn 

 vulgattim, 60; of Ankyroptcris Grayi^ 

 21; of Cyatheaceae, 297; of Dipteris 

 Lobbiatia, 316 (Fig. 574); of Helmin- 

 thostachys-i 60 (Fig. 352); of Ophioglos- 

 saceae, 62; (small) of Platyzoma^ 201 

 (Fig. 483); (undivided) of Schizaeaceae, 

 160; of Thanifiopteris Schlechtendalii, 

 142 (Fig. 432); of Zygopterideae, 25 



Leaves of Coenopterids, 38; of Cyatheaceae, 

 294; of Dipteris, 312 (Fig. 568); of 

 Lygoditim palmatiini, 155 (Fig. 438); 

 of Marattiaceae, 97; of Schizaeaceae, 

 153; segmentation at the margin of, 

 238 (Fig. 50S) 



Leptolepia, 268, 274 



Leptopteris, 126, 152; filmy habit of, 151; 

 juvenile leaf of, 128 (Fig. 417) 



Leptosporangiate type, 3 



"Longicide" sporangia, 308 



"Looking-glass" images of sporangia, 308 

 Lophidiiiin, 165 



Lophosoria, "K^i; anatomy of, 285; com- 

 parison of, 287; hairs of, 283; pinnule 

 of, 284 (Fig. 548); sorus of, 285 (Fig. 

 549); sporangia of, 287 (Fig. 551); stem 

 of, 286 (Fig. 550); stock of, 284 (Fig. 

 547) 

 L. quadripinnata, habit of, 283 

 Loxsoma, 252; meristele of, 254 (Fig. 523); 

 prothallus of, 257 (Fig. 525) 

 L. Cimnifighami, solenostele of, 254 (Fig. 

 522); sorus and sporangium of, 253 

 (Fig. 521) 

 Loxsomaceae, 2^2 sqq. (ch. xxviil); anatomy 

 of, 254; comparison of, 257; gameto- 

 phyte of, 256; habit of, 252: sorus and 

 sporangia of, 255 

 Loxsoniopsis, 252, 257 



L. ;w/<i:^//zj, leaf of, 252 (Fig. 520); sporan- 

 gia of, 256 (Fig. 524) 

 Lygodium, 153, 157 (Fig. 441), 175; com- 

 parison of, 174; fertile segments of, 

 163; "monangial" sorus of, 164 (Fig. 

 447); rhizome of, 158 (Fig. 442); sper- 

 matocytes of, 172; sporangia of, 163 

 L. circiiiatiini, sporangium of, 170 (Fig. 



456) 

 L. ^Hydroglossum, 5 

 L. japoiiicum, sporangia of, 167 (Fig. 45 1) 

 L. laiiceolatum, sporangium of, 169 (Fig. 



454) 

 L. palmatum, leaves of, 155 (Fig. 438) 

 L. scandens, rhizome of, i53(Fig. 436) 



Macroglossum, 95, 124; embryos of, 121 

 (Fig. 413) 



Maps of Fern distribution, A 328, B 329, 

 C330, D331 



Marat tin, 95, 125 



M. Douglasii, embryo of, 122 (Fig. 415); 



sex-organs of, 119 (Fig. 411) 

 M. fraxinea, gametophyte of, 118 (Fig. 

 410) 



Marattiaceae, 6, 8, 95 sqq. (ch. xx), 230; 

 anatomyof, loi; comparative treatment 

 of, 123 ; distribution of, 331 ; embryology 

 of, 120; embryos of, 121 (Fig. 412); 

 external characters of, 95; gametangia 

 of, 120; gametophyte of, 118; hairs and 

 scales of, 97; leaves of, 97; pinnae of, 

 99 (Fig- 39-); roots of, 98; seven genera 

 of, 95; fossil sori of, 113; sori and spo- 

 rangia of, 109 (Fig. 402); spore-output 

 of, 112; spore-producing members of, 

 108; stipules of, 96 



Marginal receptacle of Cihotiuin Scheidei, 

 265 (Fig. 534) 



Marginales, 8, 231, 282, 304, 309, 326 



Marsilea, 176, 192; comparison with Schi- 

 zaea, 191 ; habit of, 176; juvenile leaves 

 of, 179 (Fig. 461) ; morphology of sporo- 



