604 



INDEX 



All numbers refer to pages, heavy type indicating illustrations. 



Saprophyte, 493 



Sap-wood, 246 



Sassafras, 1G5, 168, 360, 406, 407; 



oil of, 297; pith, 163; wood, 260 

 Sassafras officinale, Sassafras 

 Satureia horlensis, Summer Savory 

 Savory, 418, 419; herbs, 128, 137; 



seeds, 128, 137; summer, 137, 



383 

 Savoy cabbage, 69 

 Saxifragacea;, Saxifrage Family 

 Saxifrage Familv, 399: currant, 



94 

 Scale-like outgrowths, 538 

 Scale-tree, 299, 301 

 Scale-tree Family: scale-tree, 299, 



301 

 Scallop Squash, 80 

 Schizocarp, 370 

 Schizomyceles, Fission Fungi 

 Scitaminales, Banana Order 

 Selerenchyma, 538, 540 

 Sclerotic tissues, 538 

 Scotch Pine, 269; ro.se, 151 

 Scouring-rush, 541, 542, 543; 



giant, 299 

 Scouring-rush Familv: scouring- 

 rush, 541, 543 

 Screens, 223 



iScrophularincew, Figwort Family 

 Scutellum, 388 



Sea Lsland Cotton, 225, 226, 227 

 Sealing-wax, 288 

 Seaside Buttercup, evolution of, 



462 

 Seaside Crowfoot, 463 

 Sea-tangle Family: sea-tangles, 



486, 488 

 Sea-tangles, 485, 486, 488 

 Seaweed Division, 491 

 Seaweed Subdivision, 395, 396 

 Seaweeds, 308 

 iSecale cerealc, Rye 

 Secondary, inflorescence, 352; 



leaves, 318, 319; ti,ssue, 542 

 Sedge Family, 307 

 Seed, 3.50, 351, 550; albuminous, 



355; exalbuminous, 363, .557; of 



flax, 317, 318 

 Weed-bud, 48, 317, 318 

 Seed-coat, 316, 317, 318 

 Seed-food, 29, 316, 317, 318 



Seed-leaves, 46, 48, 317, 318 



Seedling, development, 317; of 

 flax, 318, 319 



Seed-oils, 101 



Seed-plant Division, 393, 396, 397 



Seed-plants, 393, 396, 397 



Seed-root, 48, 317, 318 



Seeds, 352; make best provision 

 for offspring, 550; parts of, 

 29, 49, 316,' 352; the greatest 

 achievement of the vegetable 

 kingdom, 560 



Seed-stem, 317, 318 



Seed-wing, 551 



Seedworl Division, 394, 396 



Seedworts, 393, 394, 396, 397 



Selaginella, 550 



iSelaginellaceo', Selaginella Family 



Selaginella Familv: selaginellas, 

 545-547 



SdngineUa spp., Selaginellas 



Selaginellas, 545-547 



Selected adaptations, 446, 452 



Selection, artificial, 127, 446, 447; 

 natural, 447, 448; subordinate 

 r61e of, 460 



Self-control inherent in every or- 

 ganism, 464 



Self-movement, 461 



Sepal, 29, 319, 352 



Septicidal dehiscence of capsule, 

 379 



Septic organisms, 177 



Sequoia scmpcrvirens, Redwood 



Service \'ersus competition, 468 



Sessile, 342 



Sewing-thread, 223 



Sexual, generation, 560; reproduc- 

 tion, 480 



Sexuahtv lo.st in certain fungi, 501 



Shade trees, 303 



Shagbark Hickorv, 41 



Sheath, 337 



Sheath-alga^, 482, 483, 484, 514, 

 558; compared with spore-sac 

 fungi, .501 



Sheath-alga Family: cushion 

 sheatli-alga, 484; free-branching 

 sheatli-alga, 483 



Sheep Laurel, 202, 379 



Sh(>lf fungus, 239 



Shell substitute, 284 



