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10 ib
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THE ZYGNEMATACEAE
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GRADUATE SCHOOL MONOGRAPHS Contribu
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INTRODUCTION The absence of a moder
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INTRODUCTION ix Illinois State Teac
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Plat€ ILLUSTRATIONS Plates Page I
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THE ZYGNEMATACEAE
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4 ZYGNEMATACEAE gametes is by means
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6 ZYGNEMATACEAE are common but are
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8 ZYGNEMATACEAE between cells, the
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10 ZYGNEMATACEAE sporiferous cells
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12 ZYGNEMATACEAE TABLE I Summary of
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14 ZYGNEMATACEAE In higher latitude
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i6 ZYGNEMATACEAE specimens with mat
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1 ZYGNEMATACEAE II. Spores usually
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20 ZYGNEMATACEAE 32. Diameter veget
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22 ZYGNEMATACEAE REPRODUCTION BY AP
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24 ZYGNEMATACEAE spores formed in t
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26 ZYGNEMATACEAE pitted; pits 5-6 /
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28 ZYGNEMATACEAE spores are formed
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30 ZYGNEMATACEAE spores formed in t
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32 ZYGNEMATACEAE biculate; pits 4.5
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34 ZYGNEMATACEAE United States: Ill
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36 ZYGNEMATACEAE zygospores globose
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38 ZYGNEMATACEAE spores formed in o
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40 ZYGNEMATACEAE spores in one of t
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42 ZYGNEMATACEAE an outer pectic la
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44 ZYGNEMATACEAE irregular in form
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46 ZYGNEMATACEAE cylindncum Transea
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CHAPTER THREE THE GENUS ZYGNEMOPSIS
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ZYGNEMOPSIS 51 6. Median spore wall
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ZYGNEMOPSIS 53 22-25 jLi X 25-30 /"
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ZYGNEMOPSIS 55 12. Zygnemopsis sple
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ZYGNEMOPSIS 57 23-50 Ai, with a mor
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quadrata Jao 1935 ZYGNEMOPSIS 59 si
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CHAPTER FIVE THE GENUS ZYGOGONIUM K
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ZYGOGONIUM 65 3. Zygospores 15-26/U
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ZYGOGONIUM 67 ospores ellipsoid to
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ZYGOGONIUM 69 14. Zygogonium stephe
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CHAPTER SEVEN THE GENUS MOUGEOTIOPS
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CHAPTER RIGHT THE GENUS DEBARYA WIT
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DEBARYA 77 3. Debarya ackleyana Tra
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CHAPTER NINE THE GENUS MOUGEOTIA C.
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MOUGEOTIA 8i not be cited as proof
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7. Spores globose to ovoid, variabl
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MOUGEOTIA 85 30. Spores ovoid 40-54
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MOUGEOTIA 87 52. Zygosporangia regu
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MOUGEOTIA 89 74. Spore wall smooth
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MOUGEOTIA 91 6. MouGEOTiA ELLiPsoiD
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MOUGEOTIA 93 tending somewhat into
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MOUGEOTIA 95 conjugation scalarifor
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MOUGEOTIA 97 pyrenoids; gametangia
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MOUGEOTIA 99 ous scattered pyrenoid
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MOUGEOTIA loi cylindric, with conca
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MOUGEOTIA 103 56. MouGEOTiA ATUBULO
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MOUGEOTIA 105 aplanospores occupyin
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MOUGEOTIA 107 with hornlike process
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MOUGEOTIA 109 77. MouGEOTiA viRiDis
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MOUGEOTIA III 85. MouGEOTiA QUADRAN
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MOUGEOTIA 113 94. MouGEOTiA MAYORi
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MOUGEOTIA 115 craterophora Bohlin 1
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CHAPTER TEN THE GENUS TEMNOGAMETUM
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CHAPTER ELEVEN THE GENUS SIROCLADIU
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CHAPTER THIRTEEN THE GENUS SPIROGYR
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SPIROGYRA 125 in thickness, and eac
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SPIROGYRA 127 may be widened and ne
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SPIROGYRA 129 Of the 2 species with
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SPIROGYRA 131 II. Most of the spore
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31. Diameter vegetative cells more
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SPIROGYRA 135 END WALLS PLANE (one-
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66. Spores 34-48 i". x 48-54^1 93-
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82. Median spore wall double, outer
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loi. Fertile cells cylindric, chrom
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115. Diameter vegetative cells 130-
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SPIROGYRA 145 133. Reproducing by a
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SPIROGYRA 147 157. Median spore wal
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SPIROGYRA 149 178. Chromatophores i
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SPIROGYRA 151 3. Spirogyra juercens
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SPIROGYRA 153 China, Szechwan. The
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SPIROGYRA 155 matophore; conjugatio
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SPIROGYRA 157 23. Spirogyra affinis
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SPIROGYRA 159 cells to globose, 28-
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SPIROGYRA i6i qucntly misapplied th
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SPIROGYRA 163 scalariform; tubes fo
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SPIROGYRA 165 ellipsoid, ^P-^^i^ x
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Germany; Latvia; Yugoslavia; Finlan
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Coll.). SPIROGYRA 169 Dutch New Gui
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SPIROGYRA 171 formed by both gameta
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SPIROGYRA 173 This imperfectly desc
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SPIROGYRA 175 Vegetative cells 35-4
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SPIROGYRA 177 loi. Spirogyra polyta
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SPIROGYRA 179 formed by both gameta
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SPIROGYRA i8i is thin, brownish and
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SPIROGYRA 183 PI. 8, Figs. 87-88. A
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SPIROGYRA 185 United States: Widely
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SPIROGYRA 187 65-83 /x X 75-1 00 /x
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SPIROGYRA 189 150. Spirogyra reinha
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SPIROGYRA 191 cylindric or slightly
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SPIROGYRA 193 by both gametangia; f
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SPIROGYRA 195 although the tubes be
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wall. United States: Texas, Karnac,
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SPIROGYRA 199 found the earlier sta
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SPIROGYRA 201 matophore, making 3 t
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SPIROGYRA 203 199. Spirogyra unduli
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SPIROGYRA 205 United States: Iowa;
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SPIROGYRA 207 spores ellipsoid, 20-
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SPIROGYRA 209 iform; tubes formed b
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SPIROGYRA 211 tubes formed by both
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SPIROGYRA 213 forma gracilior). Czu
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SPIROGYRA 215 244. Spirogyra gratia
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SPIROGYRA 217 252. Spirogyra incons
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SPIROGYRA 219 iform; tubes formed b
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SPIROGYRA 221 zygospores ellipsoid
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SPIROGYRA 223 274. Spirogyra verruc
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SPIROGYRA 225 elliptica Jao 1935 83
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SPIROGYRA 227 mirabilis (Hassall) K
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SPIROGYRA 229 siibsalina Cedercreut
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232 ZYGNEMATACEAE Usually the matur
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234 ZYGNEMATACEAE cncd and rcilexcd
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236 ZYGNEMATACEAE Figs. H to K. Sir
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INDEX Roman numerals refer to plate
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grossii (Spirogyra), XXX, 6; 185 Ha
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punctiformis (Spirogyra), XXXIV, 5-
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PLATES
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PLATE 1 247.
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PLATE ir 249
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PLATE III 251
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PLATE IV 253
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PLATE V 255
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PLATE VI 257
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PLATE VII 259
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PLATE VIII 261
- Page 283 and 284: PLATE IX 263
- Page 285 and 286: PLATE X 265 '^=S
- Page 287 and 288: PLATE XI 267
- Page 289 and 290: PLATE XII 269
- Page 291 and 292: PLATE XIII 271
- Page 293 and 294: PLATE XIV 273
- Page 295 and 296: PLATE XV 275
- Page 297 and 298: PLATE XVI 277
- Page 299 and 300: PLATE XVII 279
- Page 301 and 302: PLATE XVIII 281
- Page 303 and 304: PLATE XIX 283
- Page 305 and 306: PLATE XX 285
- Page 307 and 308: PLATE XXI 287
- Page 309 and 310: PLATE XXII 289
- Page 311 and 312: PLATE XXIII 291
- Page 313 and 314: PLATE XXIV 293
- Page 315 and 316: PLATE XXV 295
- Page 317 and 318: PLATE XXVI 297
- Page 319 and 320: PLATE XXVII 299
- Page 321 and 322: PLATE XXVIII 301
- Page 323 and 324: PLATE XXIX 303
- Page 325 and 326: PLATE XXX 305
- Page 327 and 328: PLATE XXXI 307
- Page 329 and 330: PLATE XXXII 309
- Page 331 and 332: PLATE XXXIII 311
- Page 333: PLATE XXXIV 313
- Page 337 and 338: PLATE XXXVI 317
- Page 339 and 340: PLATE XXXVII 319
- Page 341 and 342: PLATE XXXVIII 321
- Page 343 and 344: PLATE XXXIX 323
- Page 345 and 346: PLATE XL 325
- Page 347: PLATE XLI 327