INDEX 



627 



Scandinavia, pre-Pleistocene migration 



in, i6i 

 — , Trapa natans in, 199 

 Scavengers, 43, 46, 278, 280, 303, 305 

 Scents (perfumes), 3, 274-5 

 Schery, R. W., 253, 281 

 Scheuchzer's Cotton-grass, see Erio- 



phonitn scheuchseri 

 Schimper, A. F. W., 20, 23, 378, 471, 



506, 540 

 Schismus, 451, 453 

 Schizophyceae, see Cyanophyceae 

 Schizophyta (Schizophytes), 24, 26-9, 



.46, 145. 146, 515. 527, 550 



Schizothrix lacustris, 495 



Schmidt, K. P., 17 



Schouw, J. F., 21 



Schultes, R. E., xviii, 428, 462 



Scientific name, 25 



Scilla non-scripta, see Endymion (Scilla) 

 non-scriptus 



Scirpus lacustris (Bulrush), 204, 505 

 S. maritimiis, 370 



S. tabernaemontanii (Glaucous Bul- 

 rush), 204 



Scitamineae, 430 



Sclerophyll, 354 



Sclerophyllous forest {see also Sclero- 

 phyllous woodland), 332, 356, 357 



— shrubs, 289, 356 



— woodland, 354-8, 356, 357 



, geographical locations of, 354, 



355- 35S 

 Scotland, 292, 526, 531 

 Scots Pine, see Pimis sylvestris 

 Scouring-rush, see Equtsetum 

 Scrambling plants, 87, 88, 89, 431 

 Scree, 372, 389, 396. 407, 551 

 Screw-pine, see Pandamis and P. 



tectorius 

 Scrub Birch, see Betula glandiilosa agg. 



— community, 11, 314, 354, 355, 356, 



357, 358, 372, 391. 392, 4", 

 447- 463 



, arctic, 390, 391, 392 



— , desert, 364, 447-8 



Scurvy-grass, see Cochlearia ifficinalis s.l. 



Sea Arrow-grass, see Triglochin niari- 



tima 

 ■ beach Sandwort, see Arenoria 



{Honckenya) peploides 



birds, dispersal by, 1 14, 420 



blite, see Suaeda maritima 



bottoms, aphotic, 538-40 



caves, 550 



— currents, dispersal by, 106, 107, 513- 



14 



drift, disseminules in, 460 



— , freezing-point of, 510 



gull, 401 



lettuce, see Ulva and U. lactuca 



Sea-level, changes in, 170 



— Lungwort, see Mertensia maritima 



agg. 



margin profile, 513 



— , organic productivity of, 509, 520 



pea, see Lathyrus maritimns agg. 



— , pelagic division of, 512, 513, 514 

 — , photosynthetic activity in, 509, 520 

 pink, see Armeria maritima s.l. 



— Plantain, see Plautago maritima s.l. 

 purslane, see Arenaria (Honckenya) 



peploides agg. 



rocket, see Cakile 



— , surface temperature of, 510 

 — , vegetation of, 507, 512-40 



— water, calcium carbonate content of, 



, carbon dioxide /oxygen balance 



in, 509-10 



, oxygenation of, 509-10, 523 



, pH of, 523 



, salt-content of, 507-8 



, seeds killed by, 1 1 1 



, variable salinity of, 317, 507-8 



Sears, P. B., xvii, xviii, 561, 571, 580 

 Seaside and other arctic vegetational 



types, 399-405 

 Seasonal algal maxima, 481, 482, 519, 



520 



— aspects of freshwater vegetation, 499 

 of woodland vegetation, 285, 334, 



338, 339, 342, 439-41- 449. 450 



— development of foliage, 339 



— forest, 439 



— groups of algal epiphytes, 500 



• — occurrence of Diatoms, 481-2, 499, 

 520 



— recurrent changes in plankton, 481, 



520 



— (aspect) society, 334, 340, 360 



— variation (change), 146, 522, 530, 531 

 of phytoplankton, 481, 518-20 



— vicariad, 204 

 Seaweeds killed by frost, 522 



— , marine ice and, 531, 536, 537-8 

 — , marine mud and, 525, 529, 532, 533 

 — , temperature groups of, 528 

 Secale cereale (Rye), 218, 226, 257, 282 



, world production of, 228, 229 



Secondary colonization, 200, 371, 424 



— forest, 307, 372, 465, 466 



— forest dominants, 344, 372, 466 



— scrub, 460, 465 



— sere, 324, 464, 465 



— succession, 324, 464, 465, 466 

 Sedative, 263, 264 



Sedge, see Carex 



— family, see Cyperaceae 

 Grass tundra, 388 



meadow, 325, 326, 372, 373, 406 



Sedges, see Cyperaceae 



