INDEX 



305 



of, 114, 116; progressive steps of, 



228 

 Suspensor in certain primitive types, 267 

 Syngamy, 286 



Syngra}n?ne, 75, 97, 238, 280; habit of, 234 



6\ alsi?iifolia, venation of, 235 (Fig. 735) 



S. barnee?isis, 234; leaf of, 235 (Fig. 735) 



Synonymy of Taciutis blccluioides, 255 



System, vascular, disintegration and form 



of, 290 



Taenitideae, 191 



Taenitis, 255, 282 ; coenosorus of, 256 

 T. blechnoides^ characters of, 255 ; syn- 

 onymy of, 255; venation of, 256 (Fig. 



751) 



Tapeinidiimi, 24, 38 ; sori of, 26 

 T. piijiiatiim, 24 

 T. {Davallia) pi/i/iatiiin, vascular system 



of, 25 (Fig. 594) 

 T. {Wibelia) pinnatum^ 25 (Fig. 595) 



Tha/imoplens, 140, 204 



Theory, Mnemic, 291, 292; Mutation, 2S7 



T/iyrsopteris, 274, 288 



Time-limit, 289; of experiment, 287 



Todca, 271, 281, 288 



Trachypteris^ 85, 97, 98, 282 ; Acrostichoid 

 development of, 87 



Triphlebia, 149, 151, 191, 199 



Trisiiieria^ 75? 97 ; Acrostichoid state of, 77 ; 

 habit of, 76 ; sporangia of, 77 ; spore- 

 counts of, Tl ; reconstruction of the stele 

 of, 76 (Fig. 632) ; vascular system of, 76 



Two-lipped sorus, marginal position of, 5 



Unbroken sequence, 285 



Variations, fluctuating, 286, 292 ; fluctuating, 

 may become hereditary, 289 



Vascular anatomy of Cheiroplcitria^ 202 ; 

 commissure of Pteridiuin aqitilinu/ii, 

 44 (Fig. 609); receptacle o{ Alhyriieiii, 

 145 ; skeleton oi Acrosticliuni aiireum^ 

 59 (Fig. 623); strands of Pteris, 52; 

 structure of Bracken {Ptertdiiim), 41 ; 

 structLU-e of Pteris^ 52 ; system, disin- 

 tegration of, 290; system, form of, be- 

 come hereditary, 290 ; system: of Acro- 

 stichitiii aureuni^ 54; oi Anetiitni citri- 

 folium^ '2A,\ (Fig. 741); oi AntrophyiiDi 

 lineatui/i, 241 (Fig. 74 1 ) ; of Ccfatopteris, 

 70; of Cystopieris, 252; oi D avail ia, 

 15; of Z>. dissecta^ 17 (Fig. 589); of 

 Diellia, 26 ; oi Hypolepis repens, 8 (Fig. 

 583) ; of Lhwea, 65 ; of Odontosoria{Da- 

 vallia) aciileatii^i^ (Fig. 594); oi Pcl- 

 laea rotundifolia, 83 (Fig. 637) ; oiPla- 

 tyceriu>ii,20% ; oi Pteridiuin aqiiiliiiitiii, 

 42 (Fig. 607); oi Pteris Kunzeana., 53 

 (Fig. 617); of P.podophylla, 53 (Fig. 

 618); of Selaginella laevigata^ 54; of 



Tapeinidiiim {Davallia) puinatuni^ 25 



(Fig. 594); of rrisineria^ 76; of Wood- 



sia, 100 

 Venatio anaxeti of Dipteroids, 201 ; of Hy- 



i/ienolepis spicata, 222 ; oi Plaiycei iutn, 



210 

 Wenaiionoi AcrostichiC)/i, 57; oiAspleiiiuin, 



138 (Fig. 669); oi Blechnuiii^ 173 (Fig. 



695); oi Cheiropleiiria^ 201 (Fig. 710); 



of Cliristopteris^ 216; of Dryopteris^ 



132 (Fig. 663) ; of Elaphoglossmn lati- 



fo/iujH, 236 (Fig. 736); ot Goniopteris, 



132; oi Leptoc/iilus, 132 (Fig. 663); of 



Matteuccia orientalis, 154 (Fig. 680); 



of Pteroid Ferns, 56 ; of Syngra?)unc 



aisi/iifoiia, 235 (Fig. 735); oi faenitis 



blfc/uioides, 256 (Fig. 751) 

 Vittaria^ 239, 246, 248; anatomy of, 239; 



spicular cells of, 240 

 V. lineata, details of sporophyll of, 240 



(Fig. 740); prothalliis of, 245 (Fig. 745) 

 Vittarieae, comparison of, 246 ; gametophyte 



of, 245 (Fig. 745); relation to Gymno- 



grammoid Ferns, 247 

 \'ittarioid Ferns, 239 sqq. (ch. XLVii), 282 ; 



aberrant gametophyte of, 239 ; epiphytic 



habit of, 239 



IVibe/ia, 24 



IVoodsia, 99, 119, 277; antheridia of, 100; 

 habit of, 99, loi (Fig. 646); hairs of, 

 100; indusium of, 102, 103 (Figs. 647, 

 648); prothalli and sexual organs of, 

 100; sorus of, loi ; vascular system of, 

 100; young sorus of, 102 (Fig. 647) 

 IV. obiusa, sorus of, 103 (Fig. 648) 

 Woodsieae, 99, 277; comparison of, iii; 

 comparison with Cyatheaceae, 112; 

 natural grouping of, 119 

 IVoodwardia, 181, 182, 198, 279; sori of, 

 184 

 IV. areo/a/a, 180 (Fig. 701) 

 IV. Harlandii., 184, 185 (P'ig. 705) 

 \V. radicans, 183 (Fig. 704); pinna of, 



181 (Fig. 702j 

 W. virgiiiica^ 184 



Xerophytic character of Blechnoid Ferns, 

 163 



Young pinna oi Brainca i/isig/iis, 180 (Fig. 

 701 j ; plant of Ptciidium aqieili/iii/n, 42 

 (Fig. 606); s'i^ora.ngia.oi Hypoderris, 104 

 (Fig. 649) ; sporangia of lYotholaena 

 trichoDianoides., 91 (Fig. 644); sporo- 

 phylls of Ceratopicris t/ialictroides, 72 

 (Fig. 630); sporophylls of Leptochiliis 

 cusp id at us., 134 (Fig. 665); sori of De- 

 paria Moorei., 259 (Fig. 753); sori of 

 Dryoptcris Jilix-inas., 123 (Fig. 656); 

 sori of Pera/iciua, 1 10 (Fig. 654); sori of 



