306 



Index 



Penium didymocarpum Lund., 141 (fig. 

 52 D and E), 142. 



inconspicuum West, 157. 



Libellula (Focke) Nordst., 144, 157, 

 158 (tig. 55 D). 



margaritaceum (Ehrerib.) Breb., 157. 



minutissimum Nordst,, 157. 



minutum(JRai/s) Gleve, 144, 149, 158. 



polymorphum Perty, 157. 



spirostriolatum Barker, 157, 158 

 (fig. 55 C). 



suboctangulare West, 158 (fig. 55 E). 



subtile W. d- G. S, West, 138. 

 Pennataa, 273, 279305. 

 Peridinieas, 4, 32. 

 Peroniella Gobi, 29, 251. 

 Pe talon ema Berk., 323. 

 Petit, 124, 272. 

 Pfitzer, 265, 272. 

 Phacoteae, 186, 181190. 

 Phacotus Perti/, 190. 



lenticularis (Ehrenb.) Stein, 190. 

 Phfeocapsaceae, 45, 48. 

 Phaaococcus Borzi, 31, 45, 48. 



dementi (Menegli-.) Borzi, 48. 



paludosus W. & G. S. West, 48 



(fig. 8). 



Phffiocystis Lagerh., 31, 45. 

 Phasodactylon BoJilin, 31, 45. 

 Phaeophycefw, 10,29,31,32,40, 44-49,264. 

 Phaeophyll, 44. 

 Phfflosphsera W. & G. S. West, 31, 45, 49. 



gelatinosa W. d- G. S. West, 49. 

 Phseothamniaceffi, 45. 

 Phasothamnion Lagerh., 31, 45. 

 Phaeozoosporinaa, 44. 

 Phaeschizochlamys Lemm., 45. 

 Philodendron, 55. 

 Phormidium Kiitz., 330, 332, 333, 335. 



autumnale (.-I//.) Gom., 335. 



molle (Kiitz.) Gom., 334 (fig. 153 D). 



purpurascens (Kiitz.) Gom., 335. 



tenue (Menngh.) Gom., 334 (fig. 



153 E and F), 335. 

 Phragmites, 340. 

 PhycochromophycecB, 3, 306. 

 Phycocyauin, 34, 308. 

 Pbycoerythrin, 34. 

 Phycophaein, 44. 

 Phycoporphyrin, 51. 

 Phycoxanthin. 44. 

 Phyllobium Klebs, 198. 



dimorphum Klebs, 199. 

 Phyllosiphon, 13, 199. 



Alocasia3 Lagerh., 55. 



Arisari KiiJin, 54. 



maximum Ijiigerh., 55. 

 Philodendri Lagerh., 55. 

 Phyllosiphonacefle, 109. 

 Phylogeny of Fresbwater Algae, 2133. 



Phymatodocis Nordst., 144, 149, 151. 



Phytheliea?, 213, 232234. 



Phythelios Frenzd, 232. 



Pilinia Kiitz., 91. 



Piiiiinldrid. Ehrenb., 262, 264, 266, 267, 



292. 



Pithixcus Dang., 187. 

 Pithophora Wittr., 101, 107. 



Keweusis Wittr., 107. 



(Edogonia (Mont.) Wittr., var. poly- 

 spora Rendle & West f., 106 

 (fig. 41), 107. 



Pithophoracese, 26, 30, 102, 106107. 

 Placodermas, 144, 149, 156178. 

 Plagiospermum Cleve, 121. 

 PlaiictonciiKi Schmidle, 78. 

 Plankton (Freshwater), 4. 

 Planogametes (or Zoogametes), 16, 17. 

 Planorbis, 70. 

 Plectonema Thur., 330, 332, 333. 



Tomasiniana (Kiitz.) Born., 333. 

 Pleodorina Xhaw, 195. 

 Pleurenterium Lund, (subgen.), 171. 

 Pleurocladia A. Br., 31, 45. 

 Pleurococcaceff), 30, 83, 90, 179, 201206, 



212. 

 Pleurococcus MenegJi.,1, 18, 26, 90, 201, 



202, 203, 204, 206, 230. 

 in in id tus Nag., 230. 

 nimbatus De Wild., 204. 

 rut'escens (Kiitz.) Breb., 203. 

 rufescens var. sanguineus W. <(> 



G. S. West, 202 (fig. 81 B), 203. 

 vulgaris Menegh., 202 (fig. 81 A), 



203, 204. 



Pleurosigma W. Sm., 295. 

 Pleurostauron Babenb., 294. 

 Pleurotceniopsis (Lund.) Lagerh., 166. 

 Pleurotasnium Nfig., 137, 138, 143, 144, 



150, 159,' 162. 



coronatum (Breb.) Rabenh., 137, 

 163 (fig. 58 A). 



Ehrenbergii (Breb.) De Bary, 163 

 (fig. 58 B). 



maximum (Reinsch) Lund., 163. 



nodosum (Bdil.) Lund., 147, 163. 



Trabecula (Ehrenb.) Nfig., 163. 



truncatum (Breb.) Nfig., 163. 

 Podosira Ehrenb. (sect, of Melosira), 275. 

 Polyblepharideae, 30, 186. 

 Polyblepharis Dung., 23. 

 Polychaetophora w'.d- G. S. West, 181, 183. 



lamellosa W. & G. S. West, 184 (fig. 



72). 



Polycystin; 308. 

 Polycystis Kiitz., 349, 350. 

 Polyedrium Nag., 20, 231. 



tetru'fdricum Nag., 231. 

 Polymorphism, 18 21. 

 Polytaniea (subgen. of Spirotaenia), 154. 



