454 



PLANT MORPHOLOGY 



Hypha, 108 

 Hypocot.yl, 327, 353 

 Hypocrcalos. \'M) 

 Hyposyny, 375, 376 

 Hypophysis, 395 



Indusium, 284, 285, 295, 301 



false, 285 

 Integument, 312, 323, 326, 347, 359, 386 



Interrelationships, Algae, 98 



Pteridophyta, 307 



Spermatophyta, 410 

 lochroma, microsporangiiim, 380 

 Isoetales, 241 



embryo, 247 



gametophytes, 245 



sporangia, 243 



sporophyte, 241 



summary, 248 



vascular anatomy, 242 

 Isoetes, 241 



embryo, 246 



female gametophyte, 246 



male gametophyt(>, 245 



megasporangium, 244 



microsporangium, 244, 245 



sporangia, 244 



stele, 243 



stem tip, 242 

 Isogamete, 27 



Acetabularia, 57 



Caulerpa, 61 



Chlamydomonas, 27 



Chlorococcum, 32 



Cladophora, 55 



Desmids, 49 



Edocarpus, 67 



Gonium, 26 



Hijdrodictyon, 36 



Olpidium, 109 



Pandorina, 29 



Pediastrum, 36 



Plasmodiophora, 112 



Protnsiphon, 37 



Rhizopus, 118 



Spirogyra, 51 

 Synchytrium, 1 11 

 Ulothrix, 38 

 Ulva, 41 

 Zygnema, 54 

 Isogamy, 27 

 Isthmia, 22 



Juglandales, 399 

 Jungermanniales, 177 



Jungormanniales, Acrogynae, 183 



gametophyte, 183 



sex organs, 184 



sporophyte, 185 

 Anacrogynae, 177 



gametophyte, 178, 179 



sex organs, 179 



sporophyte, 180 

 summary, 185 



K 



Kelps, 76 

 other, 79 



Laboulbeniales, 140 

 Labyrinthuleae, 108 

 Laminaria, 76, 77 

 Laminariales, 76 



summary, 79 

 Land habit, establishment, 206 

 Leaf, gap, 212, 260 



structure, angiosperms, 363 

 Pinus, 343 



trace, 212, 222 

 Lepidodendrales, 238 

 Lepidodendron, 240 

 Lepidostrobus. 239 

 Leptosporangiate, 286 

 Leucosin, 16 

 Lichenes, 153, 154, 155, 156 



crustose, 153, 154 



foliose, 153, 154 



fruticose, 153, 154 

 Life cycles, types, 422 

 Ligule, Isoetes, 242, 244 



SelagineUa, 231, 233, 234, 238 

 Liliales, 408 

 Lilium, anther, 379 



pollen grain, 391 

 Liverworts, 161 

 Lunularia, 164 

 Lycogala, 105 

 Lycoperdaceae, 152 

 Lycopodiales, 218 



embryo, 229 



gametophyte, 226 



sporangium, 223 



sporophyte, 219 



summary, 229 



vascular anatomy, 220 

 Lycopodiinae, orders, 218 



summary, 304 

 Lycopodium, 218, 223, 224 



anther idium, 228 



