INDEX 



Abnormal life histories, 20-2; chs. 10 and 11. 

 See also Dryopteris Borreri, D. remota, and D. 

 Phegopteris 

 Adiantwn capillus-veneris, 124; and Y'lgs. 123/), 125 

 A. reniforme, 283 

 Allen, 159-60 

 Allopolyploidy 

 definition, 5 

 Doodia caudata, 202 

 frequency, 286 

 Male Fern, 54 

 Polystichum aculeatum, 153 

 summary, 282-3, 286 

 watercress {Nasturtium), g 

 Woodsia alpina, 151 

 Alternation of generations, 18-19; ^"^ Figs- 5? 6 

 Amitosis, 166; and Fig. 169 

 Anaphase, definition, 34 

 Andersson-Kotto and Gairdner, 124, 182 

 Anemorrhoea, 276 



Aneuploidy, 5, 14-16, 125, 286, 287 

 Apogamy 



characteristics of, 57-8; and Figs. 42, 43 

 cytology of, chs. 10 and 1 1 

 definition, 20-1; and Fig. 7 

 in Asplenium monanthes, 183, 195 

 in Cyrtomium, 159-70, 177-82 

 in Dryopteris atrata, 158, 160, 167 

 in D. Borreri, 54-61, 185-94 

 in D. remota, 71-5, 79, 185 

 in Pellaea, 158, 184-6 

 in Phegopteris, 82-3, 183-4 

 in Pteris cretica, 167, 17 1-7 

 origin of, 194-5, 285, 291 

 See also Induced apogamy 

 Apospory, 21-2; and Fig. 8 

 in Doodia, 203 



in Osmunda, 26-8; ani Figs. 11, 12 

 'peculiar' Scolopendrium, 124 

 Archegonium, 17 



in Equisetum, 19; and Fig. 6c 

 in Ophioglossum, 266-8; and Figs. 265a, 266 

 Ashby, xiii, 28, 198, 200, 203, 255, 259 

 Aspidiurn aculeatum, 197. See also Polystichum 



aculeatum 

 A. angulare, 197. See also Polystichum angulare 

 A. falcatum, 158-9. See also Cyrtomium 

 A. frondosum, 197 



Asplenium, 98-106, 108, 122, 124, 281, 287 

 A. Adiantum-nigrum, 99-100; and Fig. 92 



var. acutum, 100 

 A. aethiopicum, 283 



A. alternifolium, 100 



A. Breynii, 100 



'Asplenium Filix-foemina' var. clarissima ]ones, 21-2; 



and Fig. 8b 

 A.fontanum, 100, 102; andY'ig. 96 

 A. furcatum, 283 



A. germanicum, 100-6, 285; and Figs. 97-9 

 A. lanceolatum, 98-101 ; and Fig. 956 

 A. marinum, 98-101; and Figs. 89, 91, 93c 

 A. monanthes, 158, 183, 195 

 A. Murbeckii, 103 



A. Petrarchae, 100, 102; a«^ Fig. 96 

 A. ruta-muraria, 99-103; and Fig. 95 a 

 A. septentrionale, 98, 100-3; ^^^ Figs. 93, 94, 



97 

 A. Trichomanes, 99-109; a«^ Figs. 93, 97, 101-3 

 A. viride, 98-101; and Figs. 89, 90, 93, 94 

 Afhyrium, 93-8, 108, 291 

 A. alpestre, 94-5; and Figs. 82-4 

 A. Filix-femina, 93-4; and Figs. 81, 82 



var. clarissima, 21; and Fig. 86 



var. percristatum, etc., 197 

 A. flexile, 95-9; and Figs. 82c, 85-8 

 A. niponicum, 197 

 Australia, 238-40 

 Autopolyploidy 



in Biscutella, 8 



definition, 5 



evolutionary significance, 42, 285, 287 



in Osmunda, ch. 3; 285 



in Psilotum, 240, 285 



Babcock, 5, 14-15 



Baragwanathia, 16, 245 



Barber, 233, 238-9, 240, 243 



Bateson, i, 14 



Bathypteris, 276 



Beech Fern, 63, 81-3. See also Phegopteris 



Belling, 2 



'Beringia', 140 



Bisby, 48 



Biscutella, 5, 6-8, 14-15; and Figs, i, 2 



Blackburn and Harrison, 5 



Bleaching (photographic), 298 



Blechnum, 122-4 



B. spicant, Fig. 1 23/ 



Botrychium, 269-70; and Figs. 267-9 



Bower, xii, 22, 24, 63, 93, no, 124, 128, 262 



Brassica, 13 



British flora, 88, 281-2, 286 



Bruchmann, 245, 265-6 



Bryophyta, 42 



3" 



