75 



PolysipLo nla; it rese.'ubles much jioi-e necirly similar stii.Ees 

 in Cora llina (DAVIP, »9a) . As tiiese tliree fprms are the 

 only members of the R}iodoph;ceae in v/hich the behavior of 

 the tetraspore mother cells hs.s been carefully studied from 

 a cytological standpoint, it may be well to suimnarize here 

 some of the points of resemblance and difference: 



akroTwouin^ U^fTs, pee a.t . ' 



the e-t^Ts 



kromosonves -r^u.f.leo La.r- boiiTes o A- -.-o -m a t t -k. ^-t'^-^u/es 5 ,j> i t^ e -x^ 





, (^ s e 



Fe i. 6 ^ A a- s e 



C entire S»>*\e or K'<-'«<'/'^'^-5'»*^''- '^'^A 4— i.l„^ i<.i^c p l ^if^^^- ca-k 



i^eYul e-r 



0/- Tt\9t AC I' >H«.£^C e U.5 



lU.ee.^ ,'^LK^t^^r^it-e:^ n5./,;>e.r^ be-^«^e ^.r^u^U tkr.^.L 



■Yy\e>»v Dr-».-He -meXoLbkii.se °/ f'^^'sr , . .' 4 fl DolK -m i ( o S &X 



