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THE ZYGNEMATACEAE (FRESH-WATER CONJUGATE ALGAE) With Keys for the Identification of Genera and Species and Seven Hundred Eighty-Nine Illustrations vGVWi .^X By Edgar Nelson Transeau Emeritus Pro]essor of Botany The Ohio State University THE OHIO STATE UNIVERSITY PRESS Columbus 1951
Page 2 and 3: 10 ib
Page 7: THE ZYGNEMATACEAE
Page 11: jOdi, To the Graduate Students who
Page 14 and 15: viii ZYGNEMATACEAE omitted because
Page 17: Chapter CONTENTS Page I. General Ta
Page 20 and 21: xiv ZYGNEMATACEAE Plate Page XXIV.
Page 23 and 24: CHAPTER ONE GENERAL TAXONOMIC CHARA
Page 25 and 26: TAXONOMIC CHARACTERISTICS 5 the opp
Page 27 and 28: TAXONOMIC CHARACTERISTICS 7 walls f
Page 29 and 30: TAXONOMIC CHARACTERISTICS 9 gametic
Page 31 and 32: TAXONOMIC CHARACTERISTICS ii VI. Ve
Page 33 and 34: CHAPTER TWO THE GENUS ZYGNEMA C. A.
Page 35 and 36: ZYGNEMA 15 spores, and in parthenos
Page 37 and 38: ZYGNEMA 17 It may be of historic in
Page 39 and 40: ZYGNEMA 19 21. Vegetative cell diam
Page 41 and 42: ZYGNEMA 21 43, Spores usually globo
Page 43 and 44: ZYGNEMA 23 United States: Florida,
Page 45 and 46: ZYGNEMA 25 thick, punctate, and mar
Page 47 and 48: ZYGNEMA 27 55-60 /a; median spore w
Page 49 and 50: ZYGNEMA 29 27. Zygnema gorAkhporens
Page 51 and 52: ZYGNEMA 31 7^^. Zygnema stagnale (H
Page 53 and 54: ZYGNEMA 33 the gametangia, 42-46 ,
Page 55 and 56: ZYGNEMA 35 54. Zygnema germanicum C
Page 57 and 58: ZYGNEMA 37 Vegetative cells 31-33/^
Page 59 and 60:
ZYGNEMA 39 Named in honor of Frank
Page 61 and 62:
ZYGNEMA 41 spores in one of the gam
Page 63 and 64:
ZYGNEMA 43 88. Zygnema subcylindric
Page 65 and 66:
ZYGNEMA 45 Figs. D and E. Zygnema l
Page 67:
ZYGNEMA 47 neocruciatum Transeau 19
Page 70 and 71:
50 ZYGNEMATACEAE When the zygospore
Page 72 and 73:
52 ZYGNEMATACEAE Descriptions of Sp
Page 74 and 75:
54 ZYGNEMATACEAE scrobiculate, usua
Page 76 and 77:
56 ZYGNEMATACEAE i6. Zygnemopsis qu
Page 78 and 79:
58 ZYGNEMATACEAE 23. Zygnemopsis pe
Page 81:
CHAPTER FOUR THE GENUS HALLASIA ROS
Page 84 and 85:
64 ZYGNEMATACEAE soils, rocks, and
Page 86 and 87:
66 ZYGNEMATACEAE igan, GDlorado, an
Page 88 and 89:
68 ZYGNEMATACEAE globose bodies; re
Page 91:
CHAPTER SIX THE GENUS PLEURODISCUS
Page 94 and 95:
74 ZYGNEMATACEAE among the Zygnemat
Page 96 and 97:
76 ZYGNEMATACEAE Key to the Species
Page 98 and 99:
78 ZYGNEMATACEAE Vegetative cells 8
Page 100 and 101:
8o ZYGNEMATACEAE occupying only a p
Page 102 and 103:
82 ZYGNEMATACEAE 2^^i in thickness.
Page 104 and 105:
84 ZYGNEMATACEAE 17. Diameter veget
Page 106 and 107:
86 ZYGNEMATACEAE 41. Spore wall scr
Page 108 and 109:
88 ZYGNEMATACEAE 66. Zygospores col
Page 110 and 111:
90 ZYGNEMATACEAE Vegetative cells 8
Page 112 and 113:
92 ZYGNEMATACEAE 10. MouGEOTiA DROU
Page 114 and 115:
94 Philippine Islands; Africa. ZYGN
Page 116 and 117:
96 ZYGNEMATACEAE 27. MouGEOTiA MECA
Page 118 and 119:
98 ZYGNEMATACEAE 36. MouGEOTiA GLOB
Page 120 and 121:
100 ZYGNEMATACEAE United States: Wi
Page 122 and 123:
102 ZYGNEMATACEAE outer pectic laye
Page 124 and 125:
104 ZYGNEMATACEAE 60. MoucEOTiA TRA
Page 126 and 127:
io6 ZYGNEMATACEAE 22-26 /i.; spore
Page 128 and 129:
io8 ZYGNEMATACEAE with concave side
Page 130 and 131:
no ZYGNEMATACEAE Differs from A/, p
Page 132 and 133:
112 ZYGNEMATACEAE 90. MoucEOTiA TRO
Page 134 and 135:
114 ZYGNEMATACEAE 98. MouGEOTiA coT
Page 136 and 137:
ii6 ZYGNEMATACEAE pahidosa G. S. We
Page 138 and 139:
ii8 ZYGNEMATACEAE Descriptions ok S
Page 141:
CHAPTER TWELVE THE GENUS ENTRANSIA
Page 144 and 145:
124 ZYGNEMATACEAE insists that cell
Page 146 and 147:
126 ZYGNEMATACEAE cells, or the thi
Page 148 and 149:
128 ZYGNEMATACEAE Spore form, spore
Page 150 and 151:
130 ZYGNEMATACEAE END WALLS PLANE U
Page 152 and 153:
132 ZYGNEMATACEAE 20. Chromatophore
Page 154 and 155:
134 ZYGNEMATACEAE 39. Diameter vege
Page 156 and 157:
136 ZYGNEMATACEAE 57. Spore diamete
Page 158 and 159:
138 ZYGNEMATACEAE 8i 8i SPORES NOT
Page 160 and 161:
140 ZYGNEMATACEAE 92. Fertile cells
Page 162 and 163:
142 ZYGNEMATACEAE no. Vegetative ce
Page 164 and 165:
144 ZYGNEMATACEAE 124. Median spore
Page 166 and 167:
146 ZYGNEMATACEAE 144. Zygospores 2
Page 168 and 169:
148 ZYGNEMATACEAE 169. Zygospores e
Page 170 and 171:
150 ZYGNEMATACEAE 186. With 6 to 8
Page 172 and 173:
152 ZYGNEMATACEAE 6. Spirogyra cond
Page 174 and 175:
154 ZYGNEMATACEAE nation of dimensi
Page 176 and 177:
156 Czechoslovakia; Tibet; China. Z
Page 178 and 179:
158 ZYGNEMATACEAE United States: Mi
Page 180 and 181:
i6o ZYGNEMATACEAE Vegetative cells
Page 182 and 183:
1 62 ZYGNEMATACEAE 41. Spirogyra oc
Page 184 and 185:
164 ZYGNEMATACEAE by both gametangi
Page 186 and 187:
i66 ZYGNEMATACEAE 34-38^1 X 58-68 /
Page 188 and 189:
1 68 ZYGNEMATACEAE aplanospores bro
Page 190 and 191:
170 ZYGNEMATACEAE 73. Spirogyra hya
Page 192 and 193:
172 ZYGNEMATACEAE Vegetative cells
Page 194 and 195:
174 ZYGNEMATACEAE 89. Spirocyra spl
Page 196 and 197:
176 ZYGNEMATACEAE spores and 1-2 ch
Page 198 and 199:
Page 200 and 201:
i8o ZYGNEMATACEAE 114. Spirogyra sc
Page 202 and 203:
1 82 ZYGNEMATACEAE 122. Spirogyra s
Page 204 and 205:
184 ZYGNEMATACEAE 130. Spirogyra mi
Page 206 and 207:
1 86 ZYGNEMATACEAE 137. Spirocyra o
Page 208 and 209:
i88 ZYGNEMATACEAE 146. Spirogyra cy
Page 210 and 211:
190 ZYGNEMATACEAE 154. Spirogyra si
Page 212 and 213:
192 ZYGNEMATACEAE chromatophores, m
Page 214 and 215:
194 ZYGNEMATACEAE Most of the early
Page 216 and 217:
196 ZYGNEMATACEAE iform; tubes form
Page 218 and 219:
198 ZYGNEMATACEAE in which the tube
Page 220 and 221:
20O ZYGNEMATACEAE 187. Spirckiyra e
Page 222 and 223:
Page 224 and 225:
204 ZYGNEMATACEAE and scalariform;
Page 226 and 227:
2o6 ZYGNEMATACEAE United States: Io
Page 228 and 229:
2o8 ZYGNEMATACEAE chromatophore, ma
Page 230 and 231:
210 ZYGNEMATACEAE formed by the mal
Page 232 and 233:
212 ZYGNEMATACEAE ctangia; fertile
Page 234 and 235:
214 ZYGNEMATACEAE 2 chromatophores,
Page 236 and 237:
2i6 ZYGNEMATACEAE United States: Il
Page 238 and 239:
2i8 ZYGNEMATACEAE 254. Spirogyra na
Page 240 and 241:
220 ZYGNEMATACEAE subglobose, 41-48
Page 242 and 243:
222 ZYGNEMATACEAE 269. Spirogyra iN
Page 244 and 245:
224 ZYGNEMATACEAE braziliensis (Nor
Page 246 and 247:
226 ZYGNEMATACEAE inflata (Vaucher)
Page 248 and 249:
228 ZYGNEMATACEAE punctijormis Tran
Page 251 and 252:
CHAPTER FOURTEEN THE GENUS SIROGONI
Page 253 and 254:
SIROGONIUM 233 Fig. G.—Conjugatio
Page 255 and 256:
Coll.). SIROGONIUM 235 United State
Page 257:
INDEX
Page 260 and 261:
240 crassa (Mougcotia), 95 crassa (
Page 262 and 263:
242 ZYGNEMATACEAE minor (Spirogyra)
Page 264 and 265:
244 succica (Spirogyra), XXIII, 7;
Page 266 and 267:
246 ZY(;\KMATACEAE PLATE I Ri PRoiu
Page 268 and 269:
248 ZYGNEMATACEAE PLATE II Zygnema
Page 270 and 271:
250 ZYGNEMATACEAE PLATE III Zygnema
Page 272 and 273:
252 zygnemataceaf: PL ATI-. IV ZvGN
Page 274 and 275:
ZYCiNEMATACHAE PLATE V Zygnema Fig.
Page 276 and 277:
256 ZVGNEMATACEAE PLATE \'I ZvCNliN
Page 278 and 279:
2
Page 280 and 281:
26o ZYCJNEMATACEAE PLATE VIII Zygne
Page 282 and 283:
262 ZYGNEMATACHAF. PLATH IX Zygnemo
Page 284 and 285:
264 ZYGNEMATACEAE PLATE X Hallasia
Page 286 and 287:
266 ZYGNEMATACEAE PLATE XI Zygogoni
Page 288 and 289:
268 ZYC;.\HMATACEAE PLATE XII ZVGOG
Page 290 and 291:
zy(;nemataceae PLATE XIII MoUGEOTIA
Page 292 and 293:
272 ZYGNEMATACEAE PLATE XI\' MoUGEO
Page 294 and 295:
274 ZYCINEMATACEAE PLATE X\' Mot'GE
Page 296 and 297:
276 ZYCNFAfATACEAE PLATE XVI MOUGEO
Page 298 and 299:
.78 ZYGNEMATACEAE PLATE XVII MOUGEO
Page 300 and 301:
28o ZYGNEMATACEAE PLATK XVIII MOUGE
Page 302 and 303:
282 ZYGNEMATACEAE PLATE XIX MOUGEOT
Page 304 and 305:
284 ZYGNEMATACEAE PLATE XX Temnogam
Page 306 and 307:
i86 ZYGNEMATACEAE PLATE XXI Spirogy
Page 308 and 309:
288 ZYGNEMATACEAE PLATE XXII Spirog
Page 310 and 311:
290 zv(;nemataceae PLATE XXIir Spir
Page 312 and 313:
292 ZYCINEMATACEAE PLATE XXIV Spiro
Page 314 and 315:
294 ZYGNEMATACEAE PLATE XXV Spirogv
Page 316 and 317:
296 ZYGNEMATACEAE PLATE XX\'I Spiro
Page 318 and 319:
298 ZYGNEMATACEAE PLATE XXVII Spiro
Page 320 and 321:
300 Z^'(;NE\fATACF.AH PLATE XXVIII
Page 322 and 323:
302 zv(;nfmataceae PLATE XXIX Spiko
Page 324 and 325:
304 ZYGNEMATACEAE PLATE XXX Spikogy
Page 326 and 327:
3o6 ZYGNEMATACEAE PLATE XXXI Spikog
Page 328 and 329:
3o8 ZYGNEMATACEAE PLATE XXXII Spiro
Page 330 and 331:
3IO ZYCJNHMA'rACEAH PLATl'. XXXIII
Page 332 and 333:
312 ZYGNEMATACEAE PLATE XXXIV Spiro
Page 334 and 335:
314 ZYCJNEMATACEAE PLATE XXXV Spiko
Page 336 and 337:
3i6 ZYCINEMATACEAE PLATE XXXVI Spir
Page 338 and 339:
3i8 zv(;\i;mata(:i-..\k PLATE XXX \
Page 340 and 341:
320 ZYGNEMATACEAE PLATE XXXVIII Spi
Page 342 and 343:
322 ZVCXKMATACEAE PLATE XXXIX Spiro
Page 344 and 345:
324 Z^'CNFMATACHAH PLATE XL SlROGON
Page 346 and 347:
326 ZVCiNHMATACEAE PLATE XLI /yg(k7
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