262 
‘Genera in italics are synonyms. 
ALG AR. 
PAGE. Paas. 
PAGITIBT DES ROOLY aseceye eet y trier tats 252 Desmogonium Ehr. ..............00 252 
Achnanthidium WKiitz. ......0..4 $5 182 ry Diadewnis titz. wi... veiws 252, 253 
Actinastrum Lag. victessrsseserrasees 240 = << Diatoma UeeCandy ie sssvereveressres 240 
Amphipleura Kiitz. ...........00c005+ 254 Dichotomum W. & G. 8. West .....- .Qu7. 
Araphiproraghinr, voce sa.sss-es betas 254 Dictyospherium Nag. ............... 248 
ANUS INS Sor eat ee 255 ‘“Dimorphococcus A. Br. ............ 245 
Ana bene Bory .sritievysatatees elders 258 Dinobryon Ehr. ..... Seat ae reeretteee 221 
Ankistrodesmus ‘Corda ..-.........06 RH5 + Diploncis Whr. ....t.... A... 263 
Aphanothece Nag. .............,-- 1260  Docidium Bréb. ..... ea ieee 227 
Aptogonum Ralis ......c.eccsecreseee 240 Dolichospermum Thwaites ......... 258 
Arthrodesmus Bhr. oo... le 236 
Arthrospira Stizenb. .............+.00- 1259 sBncyowema Kitz. 01.5, 0ssecvcts ser ees 255 
_ Asterionella Hass. «...........-+++. treo pat MIEheMis SBrGU: ais.sctssagasces sseese 256 
ALLE Gm CRtestrersey sae veveneri ress 250 ‘Hremosphera “De By. ............... 246 
: Euastrum Ehr. ........,..... PPR 
Bacillaria GMelinSssesscvecsrevss steve 256 Eudorina Ehr. ...... pep PE 
‘BAMOUSUN =H Nien vestyteyersey teers 241 Hudorinella Lemm. ..........s+00008. 242 
Botrydium=WAllreresvryeeveveever 249 Eunotia Ehr......... WNT 251 
Botryococcus Kitz, ..........cesves « 248... 
BulbochsctomAD mersscsetsyaventrer ray 221 ‘Fragilaria ‘Lyngb. ........... pliereai 251 
Giisneme lave o53  Frustulia Rabhue..sseereeesseesees 255 
Calothrix Ag. ......... 259 ee : 
Gaciarix Dace o4] pen rusats coc feet meal 
Cerasterias Remseh ......6....4.6c00 247 FGlenevatis Sipe eae Mine SiGe. oa 
Chetospheridium Klebahn ......... 24 [eee saree Chodat TES ee Cte tet 247 
~ AMT RE) ok  Getean erie aansd 242 Gomphonema Ag. vscccssccssc. 255 
Chlamydomonas Ehr. ............++. eed le Gomphospherin Kitz... 260 
Chlorococcum Fric8  ............-.00+ ) B48 'Gendtozygon De By 993 
Chlorogonium Bhs... DAS Gana MIEPs mange 
Ohloromonas GObUs-t.-<: 241 Grammatophora Ehr. ....scses0+--. 251 
Chlorosphoera Henfrey «.......++++-+- 246 Gymnozyga hr. 2.2.0... eee cee eee 241 
Chodatella Lemm. ..... arsine cicas 247 Gyrosigma Hass. ssc - OR4 
Chroococcus Abs ius sree SSS 260 a 
Clathrocystis Henfrey ..........s00+ : ; : 
Closterium Nitesch ...sssscseon SE tree enna Nga Che esis aRe 
Coccorneisatitouyst.s:.usbarts cues taes be oer] ei tabaci ee ORS 
Chimie ee eae a gr areas atk Herposteiron Nag. .......--ssi0+--+00es 241 
Coslastrum Nag. cress nage: : Himantidium auct.nonn. ......... 251 
Chelle pinctntiels S234. sesmuoanarnanesn 260° “Hormiscia Rabh. vsccseseeceeee 221 
ColeochmtasBrebavertavestcnteer mee OoL Hormospora Bréb. .....:stchccssas 99] 
Colletonema Br6b. ...cceceeeceeseseeee Pay Hyalotheca Bhr eaeraee poe tie 240 
Conjeroa MUN es reaeat PPR iil eit, At Hydrocytium A. ‘pyrene "819 
Conjugate Nes EIR EEAE SSAA LAAN ae Hydrodictyon Roth .......-:.s00 248 
CeCe ae Ribasaaehaidac: 53] Hydrosera Wallich «....++seeseseress 250 
Oraterospermum A. Br.......+. teres 222 Hyp heothie BSH a 34t 5 i 
Crucigenia Morren ........ PcHther eon Tehthyocercus"W.& GS, West... 228 
Sia Se ui CERES EEA 950  Lnactis Kitz. seceesesceeseees 258 
YC. UAUGZ. mee enecers . ae ; ‘ . W. & GS. W igati 4. 
Crlindooystis Menegh. “nc B24, 246 Cee tii 22e Sa TON Bas 
Oylindrospermum Kiitz, ..........+ : . Se NR sea Sd 
Gy lintded tHEOREIE Dittaeonrverieenee 959  Murchineriella Sohm: > 52s. -ajtervchrys aad 
Cymatopleura W. Sm. .+-...+....- s+ 298 Lagerheimia Chodat severest 247 
Cymbella Ag. -rveseseceverereseees ae Lemmermannia Chodat.......+0 244 
Dactylococcopsis Hansg. ..........++ 260 Leptocysiinema Archer ........0+0++. (223 
Debarya Wittr. .......... Weeder re river: 20s LICMOPHOLASA De tsetrecteyireessetvvs SOUL 
Desmidium Agi ssteovcrsvvevervrevs) 240; 241 | Lyngbya Co Ag) iieiederveitetesss = 208 
