424 



PLANT SOCIOLOGY 



Lonicera, 296 



biflora, 6 



implexa, 130 

 Loranthus, 296 

 Lotus, 236 

 Lucern, 180 

 Lupinus, 236 

 Luzula luzulina, 59 



multiflora, 120 



nemoralis, 69 



pilosa, 69 



spadicea, 123, 264, 345 



spicata, 71 

 Lycopodium annotinum, 66, 68 



complanalum, 66 

 Lygaeum spar turn, 294 

 Lyngbya, 198 



aestuarii, 309 

 Lysimachia nummularia, 16, 133 

 Lythrum salicaria, 99, 100 



M 



Macchia, 115, 273, 284 

 Macrophanerophyta, 296 

 Macrophylls, 296 

 Macrosporium commune, 77 

 Madagascar, vegetation of, 282 

 Magnesium and calcium, antagonism 

 of, 186 



calcium ratio, influence of, 189 



physiological effects of, 186 



soils, 186 

 Magnocaricion, 364, 375 

 Magydaris tomentosa, 240 

 Maianthemum, 226 



bifolium, 69, 229 

 Mangroves, 201 



swamp, 234 

 Manuring, effect of, 65, 276 

 Mapping, 356 



by airplane, 357 

 Marasmius, 69 

 Marchantia, 291 

 Mariscus serratus, 332 

 Marsilia pubescens, 220 

 Mass succulents, 296 

 Maximum temperatures, 85 

 Meadow sere, of central Alps, 321 

 Mechanical analyses of soils, 208 



Mechanisms, for conduction, 127 



for increasing absorption, 127 



for reducing transpiration, 127 



protective in plants, 127 

 Medicago maritima, 373 



sativa, 138 

 Mediterranean climates, 87, 267, 366 



saline soils, 205 

 Megaphylls, 296 

 Megathermic climate, 94 

 Melandrium rubrum, 98 

 Melica ciliata, 183 

 Mercurialis perennis, 239 

 Merriam's law, 91, 93 

 Mesembryanlhemum, 226 



ausirale, 205 

 Mesobrometum, 59, 64, 114, 210, 228, 



344 

 Mesophytes, 126, 296, 361 

 Mesotaenium violascens, 280 

 Mesothermic climate, 94 

 Metzgeria furcata, 16 

 MicrocUmate, 261, 266 

 Micrococcus, 237 



Microcoleus chthonoplastes, 198, 309 

 Microfauna of soil, 234 

 Microrelief, 272 

 Microthermic cUmate, 94 

 Microtherophyte stage, 326 

 Mielichhoferia nitida, 191 

 Migration, 306 



Migrations, of plant communities, 350 

 Mild humus, 250 

 Milium effusum, 69 

 Mineral nutrients, 180 



weathering, 254 

 Minimal area, 52 



determination of, 54 

 Minimum temperatures, 85 

 Minuartia, 293 



sedoides, 71, 293 



verna, 70 

 Mistral, 96 

 Mnium stellare, 69 

 Moisture equivalent, 216, 217 



-temperature divisions of U. S., 95 

 Molinia, 238 



coerulea, 190 

 Mohnietalia, 364, 365, 371 



