242 



ZYGNEMATACEAE 



minor (Spirogyra), 184 

 minuta (Zygncmopsis), VIII, lo-ii; 52 

 minutifossa (Spirogyra), XXIV, in; 164 

 mirabile (Zygogonium), X, 17-10: 66 

 mirabilis (Spirogyra), XXIII, 4: 158 

 mirandum (Zygncma), VI, 4; 37 

 mirificum (Zygncma), R-C; 44 

 mocbii (Spirogyra), 192 

 momonicnsc (Zygncma), 29 

 Mougcotia, 79-116 



species of 



-descriptions, 89-114 



-illustrations, 1, 10; XIII-XIX 



-key, 82-89 



-list, 114-16 

 Mougeotiopsis, 73 74 



species of 



-description, 74 



-illustrations, XII, 16-17 

 mucigenum (Zygncma), XLI, 6-7; 43 



narcissiana (Spirogyra), XXXV, 1-3; 202 

 natchita (Spirogyra), 179 

 nawashini (Spirogyra), 218 

 ncglccta (Spirogyra), XXVII, 14-15; 175 

 neocruciatum (Zygncma), 37 

 neopectinatum (Zygncma), III, 8: 26 

 nitida (Spirogyra), XXVII, 1-2; 171 

 normani (Zygncma), V, 6; 34 

 notabilis (Spirogyra), 185 

 novae-angliac (Spirogyra), XXX, 7: 186 

 nummuloides (Mougcotia), XV, 2-3; 95 

 nyctigama (Spirogyra), XXXV, 18; 205 



oblata (Spirogyra), XXXII, 1-3; 192 

 oblongata (Mougcotia), XVI, 8; 99 

 obovata (Spirogyra), XXIV, 5; 162 

 occidental is (Spirogyra), XXIV, 2; 162 

 oedogonioides (Mougcotia), XVII, 



9-10; 102 

 oltmannsii (Spirogyra), XXIII, 6; 159 

 opclouscnsis (Mougcotia), XVI, 



13-15; 100 

 opcrculata (Mougcotia), XVII, 11-12; 103 

 orientalis (Spirogyra), XXIX, 3; 181 

 oricntalis (Zygncmopsis), VIII, ^-5; 52 

 ornata (Mougcotia), XV, 6-7; 96 

 ornatum (Zygncma), VII, 2; 40 

 ovalis (Mougcotia), XVII, 2-3: 101 

 ovalispora (Mougcotia), XIV, 14; 94 

 ovcidanum (Zygncma), II, 3; 22 

 ovigera (Spirogyra), 186 



paludosa (Mougcotia), XIX, 17-18; 111 

 paludosa (Spirogyra), XXIII, 3; 158 

 papulata (Spirogyra), XXV, 3-5; 165 

 paraguaycnsis (Spirogyra), XXIX, 



17-18; 183 

 parvispora (Spirogyra), XXVI, 16; 171 



parvula (Mougcotia), XIII, 3-5; 89 

 parvula (Spirogyra), XXII, 5-6; 155 

 paschcriana (Spirogyra), XXXV, 



12-13; 204 

 pawhuskac (Mougcotia), XVII, 24-25; 



103 

 pawhuskac (Zygncma), IV, 10: 30 

 pawneanum (Zygncma), VII, i; 40 

 pcctinata (Zygncmopsis), IX, 18-21; 58 

 pcctinatum (Zygncma), III, 6: 26 

 pcctosa (Mougcotia), XVII, 4-6; 101 

 pectosum (Zygogonium), XI, 1-3; 66 

 pcipingensis (Spirogyra), XXXIX, 20; 221 

 peliosporum (Zygnema), VI, 17; 39 

 pcllucida (Spirogyra), XXXI, 8; 190 

 pcrforans (Spirogyra), XXIV, 9; 163 

 phacosporum (Sirogonium), H-K; 236 

 plakountiosporum (Zygogonium), XII, 



9-11; 68 

 plena (Spirogyra), XXVIII, 1-2; 176 

 Pleurodiscus, 71 

 species of 

 -description, 71 

 -illustrations, XII, 12-15 

 poinciana (Mougcotia), XVII, 21; 104 

 polycdrica (Debarya), XII, 24-26; 77 

 polymorpha (Spirogyra), XXIII, 



14-15; 161 

 poly taenia ta (Spirogyra), 177 

 porangabae (Spirogyra), XXIV, 11; 164 

 porticalis (Spirogyra), XXIII, 9; 160 

 pratensis (Spirogyra), I, 7; XXII, 



14-18; 156 

 prescottii (Spirogyra), 198 

 proavita (Spirogyra), XXXVIII, 7; 215 

 producta (Mougcotia), XIX, 5-6: 109 

 prona (Mougcotia), XIX, 26-28; 112 

 propria (Spirogyra), 187 

 protecu (Spirogyra), XXXVII, 19; 212 

 pscudofloridanum (Sirogonium), XL, 



6; 234 

 pscudogranulata (Spirogyra), XXXIX, 



9; 220 

 pscudoncglecta (Spirogyra), XXVI, 



13-14; 170 

 pseudopectinatum (Zygncma), 25 

 pseudorcticulata (Spirogyra), XLI, 



13-15; 222 

 pseudosprcciana (Spirogyra), XXXV, 



11; 204 

 pscudovarians (Spirogyra), XXI, 



12-14; 153 

 pulchclla (Mougcotia), XVI, 1; 98 

 pulchrifigurata (Spirogyra), XXIX, 



8-9; 182 

 punctata (Mougcotia), XIX, 15; 110 

 punctata (Spirogyra), XXXI\', 1; 199 

 punctatum (Zygogonium), XI, 12; 67 

 puncticulata (Spirogyra), XXVIII, 9; 178 



