INDEX. 



617 



Spirolobeag, 371, 400. 

 Spirotsenia, 44, 

 Spirulina, 24. 

 Splacbnaceae, 197. 

 Splachuum, 196, 197. 

 Spondias, 439. 

 Sponges, 8. 

 Sporangia, 239. 

 Sporangial-layers, 88. 

 Sporangiocarp, 88. 

 Sporangio - fructification, 



87. 



Sporangiophore, 88. 

 Spores, 10. 



Liberation and Distri- 

 bution of, 91. 



Germination of, 93. 

 Sporidia, 112. 

 Sporobolus, 295. 

 Sporocarp, 205, 219. 

 Sporochnacete, 71. 

 Sporochnus, 71. 

 Sporogonium, 186. 

 Sporophylls, 223, 235, 236. 

 Sporophyte, 181, 186. 

 Spring-spores, 147. 

 Spumaria, 8. 

 Spurge, 431, 432. 

 Spurge-laurel, 449. 

 Spurry, 366. 

 Squamariacaa, 84. 

 "Squills," 314. 

 Squiriing cucumber, 480. 

 Stacbydese, 538. 

 Stacbys, 538, 541. 

 Stachytarpbeta, 535. 

 Staehelina, 570. 

 Stag-truffle, 124. 

 Stalk, 186. 

 Stamen, 235, 236. 

 Staminate, 236. 

 Stangeria, 253, 254. 

 Stanhopea, 332. 

 Stanleyinte, 404. 

 Stapelia, 546. 

 Stapbylea, 440. 

 Stapbyleacese, 440. 

 Stapbylococcus, 39. 

 Star-aniseed, 389. 

 Statice, 514. 

 Staurastrum, 42, 43, 44. 

 Steenbammera, 533. 

 Stegocarpeas, 195. 

 Stellaria, 364, 365, 366. 

 Stella tffl, 550, 552, 553. 

 Stemless Plants, 1. 

 Stemonitis, 7, 8. 

 Stepbanosperrnum, 272. 

 Stephanospbaara, 48. 

 Sterculia, 422. 

 Sterculiaceaa, 422. 



Stereocaulon, 143. 

 Stereum, 162. 

 Sterigmata, 144, 146. 

 Sterilization, 32. 

 Sticta, 134, 137, 143. 

 Stictidaceae, 133. 

 Stictidales, 133. 

 Stictis, 133. 

 Stigeoclonium, 54. 

 Stigma, 3, 250. 

 Stigmaria, 233. 

 Stigonema, 26, 142. 

 Stilbacese, 532, 54 1. 

 Stilbe, 541. 

 Stillingia, 434. 

 Stilopbora, 71. 

 Stilophoracese, 71. 

 Stinkbrand, 113. 

 Stink-born, 172, 173, 

 Stipa, 291, 294, 296. 

 Stitchwort, 366. 

 St. John's-wort, 413. 

 Stock, 402, 405. 

 Stonebrand, 113. 

 Stonecrop, 451. 

 Stone-wort, 1, 14. 

 Stork's- bill, 419. 

 Stratiotes, 2S2. 

 Strawberry, 458. 

 Strawberry-tree, 508. 

 Strelitzia, 325. 

 Streptocarpus, 528. 

 Streptocbgeta, 290. 

 Streptococcus, 39. 

 Streptopus, 314. 

 Striaria, 70. 

 Striariaceas, 70. 

 Strickeria, 129, 130. 

 Stroma, 88. 

 Strom antbe, 327. 

 Stropbantbus, 544. 

 Strutbiopteris, 209, 214, 



254. 



Struvea, 9, 62. 

 Strycbnine, 546. 

 Strychnos, 546. 

 Sturmia, 332. 

 Stylar-cohimn, 328. 



-brush, 567. 

 Style, 250. 

 Stylidiaceaa, 564. 

 Styliiiium, 564. 

 Stylochrysalis, 15. 

 Stylopod, 492. 

 Styphelia, 509. 

 Styracaceas, 511. 

 Styrax, 511. 

 Styrax-balsam, 455. 

 Subhymenial layer, 167. 

 Subularia, 393, 399, 400, 



401. 



Succisa, 517. 

 Sugar-beet, 372. 

 Sugar-cane, 289, 293, 296. 

 Sugar-root, 498. 

 Sulphur-bacteria, 37, 38. 

 Sumach, 439. 

 Summer-spores, 147. 

 Sundew, 407. 

 Sun-flower, 572. 

 Sunn hemp, 473. 

 " Surface yeast," 178. 

 Surirayeae, 21. 

 Suspensor, 233, 246, 247. 

 Swamp cypress, 267. 

 Swarraspores, 10, 87. 

 Swede, 405. 

 Sweet Cicely, 498. 

 Sweet-flag, 303. 

 Sweet-gale, 351. 

 Sweet oil, 547. 

 Sweet-pea, 470. 

 Sweet-potato, 517. 

 Sweet- vernal, 295, 296. 

 Swertia, 542. 

 Swietenia, 436. 

 Swine's-succory, 571. 

 Sycamore, 133, 442. 

 Symbiosis, 85. 

 Sympetalaa, 336, 504. 

 Symphoricarpus, 554, 556. 

 Sympbyandra, 562. 

 Symphyllodium, 257. 

 Sympbytopleura, 387. 

 Symphytum, 533, 535. 

 Symploca, 24. 

 Synalissa, 139. 

 Synaudriurn, 306. 

 Synangium, 212. 

 Syncarp, 278. 

 Sjncepbalis, 100. 

 Synchytrieaa, 103. 

 Synchytrium, 103. 

 Syncrypta, 15. 

 Synedra, 21. 

 S.ynergidse, 248. 

 Syngeneticse, 1, 14, 15, 17, 



48. 



Syugouium, 306. 

 Synura, 15. 



Syringa, 455, 546, 547, 550. 

 Systegium, 196. 

 Systematic division of the 

 Algse, 14. 



of Filices, 210. 



of Fungi, 95. 



of Monocotyledons, 277. 



of Tballopbytes, 4. 



of Vascular Crypto- 

 gams, 204. 



Tabellaria, 19. 



