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114 ZYGNEMATACEAE 98. MouGEOTiA coTOPAxiENSis Prcscott 1947. Ohio Jour. Set. 47, p. 132. Vegetative cells 10-16 /li- x 80-250 /a; chromatophores with 2-4 pyrc- noids in a row; conjugation scalariform; zygospores globose or compressed at right angles to the short conjugating tubes, 30-32 /^ in diameter; spore wall steel-blue, scrobiculate with pits about i /x in diameter, 4-5 jn apart; sporangium wall thin, smooth. (PI. XIII, Fig. 20.) Ecuador, volcano Cotopaxi, hanging bog at 14,000 feet. Should be near M. cyanca, Number 55. 99. MouGEOTiA KWANGSiENSis Jao 1947. Bot. Btill. Acad. Sinica. 1, p. 100. Vegetative cells 12-13^ x 115-313/x; chromatophores with 4 to 6 pyrenoids in a single row; gametangia geniculate; zygosporangia divid- ing both gametangia, compressed-globose; zygospores, 35-42 ju, x 33-35^; outer spore wall thick, lamellose, and hyaline; spore wall yellow, either smooth, or with thin reticulate wrinkles. It is possible that the wrinkles are due to contraction and are not morphological structures. smaller. China, Suijen, common in rice fields. Should be placed near M. cherol^eana (No. 64), which is similar but List of the Species of MOUGEOTIA with Number acadiana Transeau 1934 47 adnata Iyengar 1932 9 africana (G. S. West) Transeau 1944 17 americana Transeau 1918 65 angolensis W. & G. S. West 1897 45 angusta (Hassall) Kirchner 1878 i areolata Transeau 1934 aspera Woronichin 1923 atubulosa Krieger 1941 austriaca Czurda 1932 boodlei (W. & G. S. West) Collins 1912 75 caelestis Transeau 1934 caimani Transeau 1938 calcarca (Cleve) Wittrock 1872 5 capucina (Bory) Agardh 1824 72 cherokeana Taft 1934 64 chlamydata Prescott 1947 97 corniculata Hansgirg 1886 cotopaxiensis Prescott 1947 crassa (Wolle) de Toni 1889 23 3° 87 5^ 81 24 63 ^ 9^
MOUGEOTIA 115 craterophora Bohlin 1901 69 cyanea Transeau 1926 55 daytonae Transeau 1934 delicata Beck 1926 73 depressa (Hassall) Wittrock 1880 49 disjuncta Transeau 1934 53 drouetii Transeau 1938 10 elegantula Wittrock 1872 74 ellipsoidea (W. & G. S. West) Czurda 1932 6 floridana Transeau 1934 fragilis (Zeller) de Toni 1889 88 gelatinosa Wittrock 1889 $1 genufiexa (Dillwyn) C. A. Agardh 1824 20 globulispora Jao 1935 36 gotlandica (Cleve) Wittrock 1872 33 gracillima (Hassall) Wittrock 1872 7^ granulosa Transeau 1938 7^ handelii Skuja 1937 hirnii Transeau 1934 irregularis W. & G. S. West 1897 jogensis Iyengar 1932 \erguelensis Krieger 1941 J{wangsiensis Jao 1947 laetevirens (Braun) Wittrock 1877 laevis (Kiitzing) Archer 1866 38 lamellosa Jao 1935 34 macrospora (WoUe) de Toni 1889 21 maltae Skuja 1926 12 mayori (G. S. West) Transeau 1926 94 megaspora Wittrock 1872 27 miamiana Transeau 1934 9^ micropora Taft 1934 29 microverrucosa Krieger 1941 35 nummuloides (Hassall) de Toni 1889 25 oblongata Transeau 1934 43 oedogonioides Czurda 1931 54 opelousensis Taft 1944 4^ operculata Transeau 1934 57 ornata Jao 1935 28 ovalis (Hassall) Nordstedt 1886 50 ovalispora Krieger 1941 4° 61 4^ 19 70 16 u 99 46 18
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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
Page 83 and 84: CHAPTER FIVE THE GENUS ZYGOGONIUM K
Page 85 and 86: ZYGOGONIUM 65 3. Zygospores 15-26/U
Page 87 and 88: ZYGOGONIUM 67 ospores ellipsoid to
Page 89: ZYGOGONIUM 69 14. Zygogonium stephe
Page 93 and 94: CHAPTER SEVEN THE GENUS MOUGEOTIOPS
Page 95 and 96: CHAPTER RIGHT THE GENUS DEBARYA WIT
Page 97 and 98: DEBARYA 77 3. Debarya ackleyana Tra
Page 99 and 100: CHAPTER NINE THE GENUS MOUGEOTIA C.
Page 101 and 102: MOUGEOTIA 8i not be cited as proof
Page 103 and 104: 7. Spores globose to ovoid, variabl
Page 105 and 106: MOUGEOTIA 85 30. Spores ovoid 40-54
Page 107 and 108: MOUGEOTIA 87 52. Zygosporangia regu
Page 109 and 110: MOUGEOTIA 89 74. Spore wall smooth
Page 111 and 112: MOUGEOTIA 91 6. MouGEOTiA ELLiPsoiD
Page 113 and 114: MOUGEOTIA 93 tending somewhat into
Page 115 and 116: MOUGEOTIA 95 conjugation scalarifor
Page 117 and 118: MOUGEOTIA 97 pyrenoids; gametangia
Page 119 and 120: MOUGEOTIA 99 ous scattered pyrenoid
Page 121 and 122: MOUGEOTIA loi cylindric, with conca
Page 123 and 124: MOUGEOTIA 103 56. MouGEOTiA ATUBULO
Page 125 and 126: MOUGEOTIA 105 aplanospores occupyin
Page 127 and 128: MOUGEOTIA 107 with hornlike process
Page 129 and 130: MOUGEOTIA 109 77. MouGEOTiA viRiDis
Page 131 and 132: MOUGEOTIA III 85. MouGEOTiA QUADRAN
Page 133: MOUGEOTIA 113 94. MouGEOTiA MAYORi
Page 137 and 138: CHAPTER TEN THE GENUS TEMNOGAMETUM
Page 139: CHAPTER ELEVEN THE GENUS SIROCLADIU
Page 143 and 144: CHAPTER THIRTEEN THE GENUS SPIROGYR
Page 145 and 146: SPIROGYRA 125 in thickness, and eac
Page 147 and 148: SPIROGYRA 127 may be widened and ne
Page 149 and 150: SPIROGYRA 129 Of the 2 species with
Page 151 and 152: SPIROGYRA 131 II. Most of the spore
Page 153 and 154: 31. Diameter vegetative cells more
Page 155 and 156: SPIROGYRA 135 END WALLS PLANE (one-
Page 157 and 158: 66. Spores 34-48 i". x 48-54^1 93-
Page 159 and 160: 82. Median spore wall double, outer
Page 161 and 162: loi. Fertile cells cylindric, chrom
Page 163 and 164: 115. Diameter vegetative cells 130-
Page 165 and 166: SPIROGYRA 145 133. Reproducing by a
Page 167 and 168: SPIROGYRA 147 157. Median spore wal
Page 169 and 170: SPIROGYRA 149 178. Chromatophores i
Page 171 and 172: SPIROGYRA 151 3. Spirogyra juercens
Page 173 and 174: SPIROGYRA 153 China, Szechwan. The
Page 175 and 176: SPIROGYRA 155 matophore; conjugatio
Page 177 and 178: SPIROGYRA 157 23. Spirogyra affinis
Page 179 and 180: SPIROGYRA 159 cells to globose, 28-
Page 181 and 182: SPIROGYRA i6i qucntly misapplied th
Page 183 and 184: 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
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PLATE IX 263
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PLATE X 265 '^=S
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PLATE XI 267
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PLATE XII 269
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PLATE XIII 271
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PLATE XIV 273
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PLATE XV 275
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PLATE XVI 277
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PLATE XVII 279
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PLATE XVIII 281
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PLATE XIX 283
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PLATE XX 285
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PLATE XXI 287
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PLATE XXII 289
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PLATE XXIII 291
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PLATE XXIV 293
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PLATE XXV 295
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PLATE XXVI 297
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PLATE XXVII 299
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PLATE XXVIII 301
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PLATE XXIX 303
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PLATE XXX 305
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PLATE XXXI 307
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PLATE XXXII 309
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PLATE XXXIII 311
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PLATE XXXIV 313
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PLATE XXXV 315
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PLATE XXXVI 317
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PLATE XXXVII 319
Page 341 and 342:
PLATE XXXVIII 321
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PLATE XXXIX 323
Page 345 and 346:
PLATE XL 325
Page 347:
PLATE XLI 327
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