229. 
229. 
231. 
231. 
231. 
231. 
231. 
231. 
231. 
233. 
233. 
235. 
235. 
237. 
237. 
239. 
239. 
241. 
241. 
243. 
243. 
245. 
245. 
247. 
247. 
249. 
249. 
249. 
251. 
251. 
OEDOGONIUM 63 
Ooconmmponeuiucinalllliyyolicatesa. ti. son 1c 2 lee Saale ee Dl baie hems a 230 
Ooconim mnotoneitudinaliyiplicatey.s.22 0: eesti. cose ee Weekes os 231 
230. Diameter of oogonium 16-18u...233a. Oe. crenulatum var. gracilius* 
230.° Diameter of oogonium 25-27yu............... 233. Oc. crenulatum* 
Diameter of oogonium 13-16yu..................... 168. O6c. longicolle 
Diameter of oogonium 16-20u......... 168a. Oe. longicolle var. senegalense 
Diameter.otoogonium 21—26u. <)...2n.caadese ss 169. Oe. rothi 
DicinCtCMmOmOOR OMIM ali rane cet eee es Sale OOS e ei aol ees 232 
Diameterof oogonium 80-380.......02..5..5..2.25- 171. Oc. decipiens 
Diameter of oogonium 39-46yu...................-. 172. Oe. macrospermum 
Diameter of oogonium 89-l0Op.> 22.2... 0.56... ee 162. Oe. perspicuum 
232. (Gynandrosporous............:. 
232. 
.171c. Oe. decipiens var. bernardense 
lidioandrosporotises aq se = eee 171b. Oe. decipiens var. africanum 
Ooconitumywith verticillatefoldss5.scc0s ciaslse eee hans fone melons dee 234 
Ooromumawithoutvertiedlatetolds.,....:.20 22 .1cs8s 2) uss eet eee 235 
234. Diameter of oogonium 23-28y..:.-.......... 229. O6c. plicatulum* 
234. Diameter of oogonium 50-55u............... 173. O6c. costatum 
234. Diameter of oogonium 58-65u............... 174. Oe. boreale 
Vegetative cell 4-7u in diameter.................. 170. O8c. danicum 
Vegetative cell 13-24 in diameter................ 175. Oc. mirandrium 
Ue MOUC CMM ADIGE... 1)lac acute oe bee pene Seno cats wehbe ks as a Seas 237 
250- eOOSOMTIM NO pPlicates.c.cas asses Bose 176. Oc. contortum 
SLE aBiili Rovigie Gell eal etetars koe wee a een eUNy, EY ce ROL Lh Oe a RP 238 
RnR eel! MOMeMIALCCE oc nc. <2 Ses pas ad'y os Ae Ra eedes, oh bs GELS A 239 
238. Diameter of oogonium 28-26u............... 232. Oc. pulchrum* 
238. Diameter of oogonium 28-32u...167b. Oe. platygynum var. continuum 
Qogenuim 16—73u in diameter... . 0.2... eas see 230. Oc. lagerstedtir* 
Ooronium 25-29 en diameter. 5... ces. .:.. . meee 231. Oc. uleanum* 
BA) See © OSPOLEEW AU GSIN OO LINN eh aiiaita ccc eles ta's < FAIRE ea de ey nt Re ieee elas 241 
2AOe sOospore wall pittediass oc acusicehsclsls este one etre 177. Oe. schmidlei 
240: Oospore wall echinate. 655..02.5. 0055 ce8: 212. Oc. velatum* 
PA ee Oosporenwalliscnopiculates. spate s.ccc awe eels emcee = 258 
Vegetative cell 83-8u in diameter.............. Fs SI Sle Cars Os Oe 242 
Mexetative.celliS—o2ustmyaiameter...< 66.5 dees sisrdbnnne serene Gees wed won 245 
22 Diameter, of OOgOmImML4 D0 py. ioe. o 2 sae, sah sos ei oeta ns ae elaesc 243 
242. Diameter of oogonium 19-23y...179b. Oe. rugulosum f. rotundatum 
Ocsporesl5—20n ini len oth yr. loko otale ava dissa SMe meee ook Lela Eee Cee 244 
Wospore 19—-25pcndlensth. 4.05 65.265 laa ve eas 179. Oe. rugulosum 
244. Oogonium ovoid to ellipsoid................ 178. Oe. longatum 
244. Oogonium obovoid to ovoid-ellipsoid, 
179a. Oe. rugulosum f£. minutum 
@psporeesloboseyonsubelObOSe keane seen en ns, SI ts wee 246 
Waspareciipsoid or Subellipsoid.. F200 6 case asc scans dees oes. sb asi 253 
Peet LOI mee IN eOIALO CMs te. cn aGe oe olticls nis MEMEO eee lA aa eh wa ok 247 
re pesuiutliatya Cell dot enlareed. 2 .icnn.cos = - eAas AA ads wade eee at 248 
Diameter of vegetative cell 9-1l5u................. 180. O6e. hians 
Diameter of vegetative cell 18-20u................ 175. Oc. mirandrium 
248. Vegetative cell 34 to 24% diameters long....................0.00:- 249 
248. Vegetative cell 2 to 3 diameters long, ; 
184e. Oe. macrandrium var. hohenackerit 
248. Vegetative cell 214 to 6 diameters long...................2.00005- 250 
248. Vegetative cell 6 to 14 diameters long....... 181. O8c. hoersholmiense 
Diameter of vegetative cell 12-14u................ 182. Oc. laetevirens 
Diameter of vegetative cell 13-2lu....184c. Oe. macrandrium f£. lundense 
Diameter of vegetative cell 21-29u................ 183. Oe. pluviale 
2M) ee VEN PLO OOF OMIT DS —A4 in cols arcs aceh ovens die ep aific sb aiele ose biol ebeee os 251 
ZOO emsene piso OOSONIMT 44—DOfb- ov. «6 ore siers cio ceils Seine ss man ee 252 
Oogonium usually single or in two’s...184d. Oe. macrandriumvar. propinquum 
Oogonium usually in groups of 2 to 6..184b. Oe. macrandrium f. aemulans 
Be MOOSPOLe ol —Oieee GOA. = 5 Sica sx oo asi «ing Sa 184. Oe. 
macrandrium 
252. Oospore 35-40 X 36-45y........ 184a. Oe. macrandrium £. acuminatum 
*See footnote, page 53. 
