228 



INDEX 



Pellia, 122 



Periderm, 66, 8o, 193 



Peronosporeae, 22 



Phyllotrichium (see also Botrychium), icx), 102 



Pith, in Helminthostachys, 76, 79 



Poly podium quercifolium, 10 



Prothallium. See Gametophyte. 



Pro-ophioglossum, 211 



Protocorm, 53 



Protophloem in Angiopteris, 201 



Protostele, 175, 188 



Protoxylem: 



Angiopteris, 201 



Helminthostachys, 79, 82 



Kaulfussia, 185 

 Pteris cretica, 53 

 Pythium, 22 

 Rhizoids: 



Botrychium, 18 



Dansea, 127 



Helminthostachys, 20 



Kaulfussia, 123 



Ophioglossum, 12 

 Rhizome (see also Stem) : 



Botrychium, loi 



Danaea, 175, 176, 177 



Helminthostachys, 106 



Kaulfussia, 186 



Ophioglossum, 91, 94 

 Root: 



Angiopteris, 140, 202, 203 



Botrychium, 47, 51, 64, 103, 104 



Danaea, 157, 164, 177, 179 



Helminthostachys, 70, 80, 81, 105, 107, 108 



Kaulfussia, 187 



Marattia, 138, 156, 192, 195 



Ophioglossum, 35, 39, 43, 56, 83, 87, 89, 93, 

 97,98 

 Root apex: 



Botrychium, 49 



Danaea, 178 



Helminthostachys, 72, 80 



Marattia, 138, 156, 195 



Ophioglossum, 94 

 Root hairs, multicellular, of Kaulfussia, 183, 187 

 Scales, epidermal: 



Danaea, 151 



Helminthostachys, 74, 75 



Kaulfussia, 180 



Marattiaceae, 150 

 Sceptridium. See Botrychium obliquum. 

 Sclerenchyma, 170, 171, 194 

 Secondary wood: 



Angiopteris, 204 



Botrychium, 65, 82 



Helminthostachys, 78 

 Sex-organs. See Antheridium, Archegonium. 

 Sieve tubes, 151, 163, 201, 202 

 Siliceous deposits in Marattiaceae, 204 



Siphonostele: 



Angiopteris, 197 



Kaulfussia, 184 



Marattia, 188 

 Spermatogenesis: 



Botrychium, 28 



Marattiaceae, 129, 130 



Ophioglossum, 26, 27 

 Spermatozoids: 



Botrychium, 28 



Marattiaceae, 130 



Ophioglossum, 26, 27 

 Spike of Ophioglossaceae. See Sporangiophore. 

 Sporangium (see also Synangium) : 



Angiopteris, 205 



Botrychium, 109, in, 114, IIS 



Danaea, 205, 206, 207 



Helminthostachys, ill, 116 



Kaulfussia, 207 



Marattia, 205 



Ophioglossum, 109, in, 113 

 Sporangiophore : 



Botrychium, 109, no 



Helminthostachys, 105, 106 



Ophioglossaceae, j, 85, 108, 109, 208 



Ophioglossum, 109, no 

 Spore: 



Marattiaceae, 208 



Ophioglossaceae, 6, 7 

 Spore division, 114 

 Sporophyll: 



Angiopteris, 204, 206 



Archangiopteris, 204 



Botrychium, 100, 102 



Danzea, 204 



Helminthostachys, in, 116 



Kaulfussia, 204, 208 



Marattia, 204 



Marattiaceae, 204, 208, 214 



Ophioglossum, 85, 88, 93, 109, no, 112, 214 

 Sporophyte (see also Embryo): 



Angiopteris, 196, 198, 199, 201 



Botrychium, 51, 59, 60, 62, 63, 99 



Danaea, 163, 178 



Helminthostachys, S4> 67, 68, 77, 104, 105 



Kaulfussia, 179, 180, 186 



Marattia, 188, 189 



Ophioglossaceae, comparison of young spor- 

 ophyte, 82 



Ophioglossum, 38, 39, 44, 45, 55 

 Staubgriibchen of Marattiaceae, 204 

 Stele: 



Botrychium, 82 



Helminthostachys, 52, 75, 82 

 Stem, stem apex: 



Angiopteris, 153, 198, 199 



Botrychium, 49, 53, loi, 103 



Danaea, 118, 136, 156, 170 



Helminthostachys, 70, 71, 74 



Kaulfussia, 185, 187 



