PAGE. PAGE. 
Mastigonema Schwabe .....:..000+ 959  Scenedesmvs Meyen «...-srse ena 
Mastigothria Kittz, ..c..csseeeeeee ees 959  Schizonema Ag. sveeeereerrerrsreres 253, 254 
Mastogloia Thw. .....ssseceesseeeeees 254  Schizosiphon Kitz. .....-++ Fives 257, 259 
Melosira Ag. .....:cceseeeeeeseeeeenenes 249  Schizothrix Kitz. ..-..-ssceeeeree 258 
Meridion Ag. ....cseresseseesteerevrsess 251 Schroderia Lemm, «...-+-+e++++ eed 
Merismopedia Meyen ..-.-++s+ee++++ 260 Sciadiwm A. Bro serereerseee oe pe 
Mesocarpus Hass. ...-.++++++ 992 Scytonema Ag... fikaneenak 257 
Mesoteenium Nag. .....---+++- “993 Selenastrum Reinsch ...+..+-.++++5 245 
Micrasterias Ag. .....:seesseseeeeenes 930  Selenoderma Bohlin ......scscrerssee+ 246 
Microcystis Kiltaipnrlensren ir: 260  Sorastrum Kitz s.-eeseeeeeseees a EBD 
Microthamnium Nig. .....--...:6++ 999  Spheerocystis Chodat ...... Biyslesteers 248 
Mougeotia Ag. ...ccseseeeeeeeseeeeeees 292  Sphawrospermum Cleve 222 
Mougeotiopsis Palla .....:..:+:ee00 293  Sphewrozosma Corda ........+. weseee 240 
Myxonema Fries ..........-.e+e-e00+++ 999 — Sphacrozyga Ag. vvereceesseceerrcersers 258 
Spirogyra Link ....seseeeeeereeerreees 222 
Navicula Bory .... 252 Spirotcenia EBT CU ses teers qe re revere: 223 
Nephrocytium Nag. .........-::ee0++ 246° Spirulina Turpin ....-.ceerereeseeres 257 
Netrium Nag. -...:esseseseeseeeeeeees 224 Staurastrum Meyen ...--.eereeeeeee 237 
NitZSCHig PLAS eve cecsteevesecceressets 255 - Staurogenia MG ane eeeeeea pis pia 244 
Nitzschiella Rabb. ........+sceseeeceees 256 Stauroneis Ehr. ..........- nts i 254 
Nodularia Mertens ....--...+.-.--0++ 258  Staurophanwm Turner «..+++---101 247 
doggies Winds anabygnceebatad a Se eee aay 
Ris UATE NERS absdleee ea 6 240 Srigeoclonium Kitt, ..sseerseereere 292 
eS Nag. sccveceseee seeseee +», 246, 247 Stipitococcus W. & G.S. West ... 249 
ocystella Lemm,. ........sseseeeeeeeee 246 * ‘ 
é ‘ = Striatella Ag. .....eeeeeeeeees Devceseers 251 
isis INA Demet sri rrsisety ers 249 Surirella Turpin O57 
OU OMA G Creare ve 252 Sumphyosiphon Kitz. s.sceeee 257, 259 
Oscillaria Bose ... 259 EN, 
Caeillntorig Viinieenene Hess 259 Synedra Ebr. ......seeeereeeereereeeeees 251 
Acted Ne Se ENE RS HOY Bynura Ebr, ....eesseeeeeeeeeseeeese eee 220 
Palmella Lyn bio .cievveeeres see 248, 260, : 
Palmodactylon Nag. epee 248° Mn bellariaaiulityereerereseesi etree Fae r4yt 
Pandorina Bory.c.tsscscseesesseeeee ese 249 ‘Tessella Playf. ........ 221 
Pediastrum Meyen ..............0+05 243 Tetmemorus Ralfs 298 
ivaagtinint UVM og cautiesa case 994 ‘Tetraedron Kiitz. .............. Oars 247 
Petalonema Berk. .....cs0ecseseeeeeee 257 Tetrapedia Reinsch .................. 244. 
Phacotus Perty ...1..ccssseseeevsseseee 941 Tolypothrix Kitz, oo... 258 
Pheococevs Boral ....-.ceeeeeeeeeeee 991  ‘Tribonema Derbes & Solier......... 249 
Phormidium Kiitz. sees 259 — Drichormus Allman ve..eeseeeeeeee 258 
Phymatodocis Nord.......1+se10++ 240  ‘Triploceras Bail... seers 228 
Pinnularia Ehr. ........0cceeeeeeeeee ees 953 ‘Tryblionella W. Sm. ....-..eees 256 
Plectonema Thuret ......sceeeseee eee 258 : i 
Pleurocarpus A. Br. .ssccccceeeeee 999 Ulothrix Kuitz. ...... eee 221 
Pleurosigma W. Sm. .......- ctv 954 Uroglena Ht igor ses cevert eves weniee 220 
Pleurostauron Rabh, ......+0.60+ Titra (204 ; 
Pleurotaenium Lund.  ........eee 997  Vauheurckia Bréb. .... sees ve 2583 
Polycystis Kitz. .scsecseeeesevseeres 960  Vaucheria D.C, .......ssseceeseeseeess 229 
Polyedrium N&g. .sescssceesesseeeees 947  Volvox (L.) Ehr. ......... veeeeeeeens 249 
Protococcus Ag. sesccccsssseveeersessees 948  Volvulina Playf. ........ seeeeeeeeens 242, 
Pteromonas Seligo  ....-...:eseeeeree 242 fs: 
Walla Schinwivressesterersvertesrcs er 244 
Rhaphidium WiitZ, ..esseseserreees 247 
Rhizosolenia Ebr. ...........-ese0eeees 960 Xanthidium Ehr, .......-...........- 236 
Rhoicosphenia Grun. 245 
Richteriella Lemm. ........-..-.100+ 250 Zygnema Ags .......ssceceseeeeeeevereee 222 
Rivularia (Roth) Ag. ....seeeeeeee 255 Zygogonium Kiitz............00- guste, PRP 
ALGAL FUNGI. 
Acanthococcus Lag. ssscseeeerecesseee 260 Rhizidium A. Br. ........ cris srk 261 
Bacillus Why. .....2+..-sess+seres O61) Spirillume hry. .:..s.yseeseresorees 261 
Bacterium Ehr. ..........6:.00 261  Spirochete Ehr. ......... Wresteets acs ual 
Chytridium A. Br. ........0...s00000 261 ‘Trochisia Kiitz. ......... Sreparlsteeetec 260 
Micrococcus Ebr. ......ssecseseeseees > Bt OO WI, gre naa ZU 
