512 



Sordaria, peritheciuin, 108, 

 109. 



Soredia, 123. 



Sori, 193, 216. 



Sorus (Ferns), 216. 



Spadiciflorae, branching, 

 434 ; empirical diagram, 

 439, 444 ; flowers, 439, 

 444; leaves, 437. 



Spadix, 407. 



Spathe, 353. 



Spatularieae, 112. 



Spawn. See Mycelium. 



Spawn-fungi, 81. 



Spermaphytes. See Seed- 

 Plants. 



Spermatia, 7, 27, 73, 77, 102, 

 104, 120, 127. 



Spermatocytes, 290. 



Spermatozoid, 6, 27, 33, 42, 

 43, 61, 72, 141, 190, 202 

 note. 



Spermogonia, 102, 104, 121, 

 127, 128. 



Spermothamnieae, 78. 



Spermothamnium flabella- 

 tum, 78. 



Spermothamnium hermaph- 

 roditum, sexual reproduc- 



^ tion, 78. (Fig. 50.) 



Sphacelaria cirrhosa, gem- 

 mae, 68. 



Sphacelaria tribuloides, 68. 



Sphacelarieae, 67, 68 ; mode 

 of growth, 67. 



Sphacelia, 109. 



Sphaeria, fructification, 108. 



Sphaeria Lemaneae,perithe- 

 cium, 109. 



Sphaeria typhina, 108. 



Sphaerococcus, 75. 



Sphaeroplea, 7, 29, 42 ; zoo- 

 spores, 42. 



Sphaeroplea annulina, 43. 



Sphagnaceae, 181, 182; an- 

 theridia and archegonia, 

 183 ; capsule, :8 4 ; dif- 

 ference from typical 

 Mosses, 163, 170; leaf, 

 169; spores, 184; sporo- 

 gonium, 184. 



Sphagnum, 141, 181 ; anthe- 

 ridia, 141,175, 183, arche- 

 gonia, 141, 176, 177, 

 183; archesporium, 179; 

 branching, 169, 181; 

 colourless cells, 183 ; em- 

 bryo, I77 , J7 8, 180; 

 leaves, 182; phyllotaxis, 

 1 66 ; rhi/oids, 170; seta, 

 177 ; social growth, 141 ; 

 sporogonium, 177, 184 ; 

 spores, 164, 177, 1 80, 1 8 1 ; 

 stem, 170, 182. 



INDEX. 



Sphagnum acutifolium, Figs. 

 i33 134, 135, 137, 138, 

 139. 



Sphagnum cymbifolium, cor- 

 tical tissue, 182. (Fig. 

 136.) 



Sphenophylleae, 193, 195* 

 273. 



Sphenophyllum quadrifidum, 

 leaf-trace-bundles, 273. 



Spike, 407. 



Spilonema, 124. 



Spiraea, branching in inflor- 

 escence, 411. 



Spiraea Aruncus, inflores- 

 cence, 407. 



Spiraea Ulmaria, 408. 



Spiraeeae, 471. 



Spiral flowers, 412, 434. 



Spirillum, 25. 



Spirochaeta, 25. 



Spirogyra, 50; conjugation, 



5- 

 Spirogyra jugalis, Fig. 27. 



Spirogyra longata, Fig. 25. 

 Splachnum, antheridia, 174; 



apophysis, 188. 

 Splachnum luteum, stem, 



167. 



Splenic fever (anthrax), 24. 

 Sporastatia morio, 119. 

 Spore, use of word, 10 note ; 



in Myxomycetes, 16. 

 Sporidia, 86, 127, 128. 

 Sporocarp, 7, 8 ; investment, 



8 ; in Florideae, 78, 80 ; 



in Muscineae, 140 ; in Fili- 



cineae, 197. (Fig. 6.) 

 Sporocytes, 192. 

 Sporogonium (Muscineae), 



140, 151, 177, 192 ; types 



of, in Hepaticae, 153 note ; 



in Musci, 179. 

 Sporophore (sporophyte), 



142, 150, 177, 190, 203, 



^ 332. 



Sporophyll, 191. 



Sprout-chains (Yeast-fungi), 

 114. 



Sprouting Fungi. See Yeast- 

 fungi. 



Sprouting in Fungi, 81, 114. 



Squamarieae, 80. 



Stamen, 301. 



Staminodes, 359. 



Stangeria, stem, 344. 



Staphisagria, flower, 421. 



Staphylea pinnata, endo- 

 sperm, 394 note. 



Staurospermum, 49. 



Stcphanosphaera, fertilisa- 

 tion, 38. 



Sterculio Balanghas, sta- 

 mens, 358. (Fig. 283.) 



Sterculiaceae, 469. 

 Stereocaulon, 116. 

 Stereocaulon ramulosus, Fig. 



8 4 . 



Stereum, 126. 

 Sterigmata, 83, 91, 105, 121, 



132. 



Stichidia (Florideae), 75. 

 Stichococcus, 120. 

 Sticta, 115. 



Sticta fuliginosa, Fig. 76. 

 Stigeoclonium, 41. 

 Stigma-lobes in relation to 



placentas, 380 note. 

 Stilogonidia, 10, 88. 

 Stilophora, 67. 

 Stipe, 132, 135, 138. 

 Stipules, 453; in Chara, 55. 

 Stomata, 156, 159. 

 Strasburger, on homologies 



of pollen-grains, 365 note. 

 Stratiotes, 445. 

 Strelitzia, intine, 367. 

 Stroma, 109. 

 Strophioles, 430. 

 Struthiopteris germanica, 



leaf, 209 ; leaf-stalk buds, 



212 ; sori, 217. 

 Strychneae, 471. 

 Strychnos, stem-structure, 



466. 



Strychnos nux-vomica, en- 

 dosperm, 395. 

 Stylidieae, 472. 

 Stylospores, 103. 

 Stypocaulon, 67. 

 Stypocaulon scoparium, Fig. 



42. 



Styraceae, 471. 

 Subhymenial layer, 134. 

 Succulent capsule, 429. 

 Superior (ovary), 371. 

 Superposed (floral whorls), 



413. 



Superposed member (oppo- 

 site), 413. 

 Superposition, 457. 

 Surirella, auxospores, 19. 

 Suspensor, 287, 301. 

 Suture (anther), 368. 

 S warm-cells (zoogonidia), 1 1. 

 Swarm-spores, 27, 45, 47. 

 Symbiosis (Fungi), 82 and 



note, and 126. 

 Symmetry, as understood in 



France and England, 349, 



note i, 412 note. 

 Symmetry of flower, 433. 

 Symphogyne, apical region, 



147. 



Symphoricarpus, floral dia- 

 gram, Fig. 381. 



Synalissa symphorea, Fig. 

 84. 



