234 p. F. BEIKSCH 01? FRESHWATES AJjQM 



usque quaterna in fascicules coalita, vaginis pellucidis subcras- 

 sis (crassioribus quam in icone Kiitzingiaua}. In fasciculis sin- 

 gulis inter radiculas Hiccice. 



Sp. near tlie Kloof road, not far from the town. Wet clay. 



Cheoococcus coHiEEEXs, Ncpgeli {EalenTiorsf^ Algce ISuropce, 

 JVr. 446 ; Kutzing^ Tab, Phyc.'). Cellnlse quadrigeminjB, ssepe 12- 

 et 16-gemin8e. Diara, cellular. 0*002S-0'0041 millim. In plantis 

 aquaticis iuter Bpirogyram. 



Fountain, Government House. 



Hue observationem insero de Alga Pbycochromacea parasitica. 

 In HiccicG spec, parencbymate in speciminibus paucis in ampuUula 

 cum terra adbserente in spiritu vini asservatis observavi corpus - 

 cula a cellulis velata, quse interdum inveniuntur in Anthocerotis 

 et in BJasice parencbymate. Qua) corpuscula primo observata a 

 cl. Hooker, postea Algas parasiticas Q,dJVosfoc7iaceas spectantes cog- 

 nita. Evolutio pbyseumatis Nostochidis ex tricbomate singulo 

 impresso in laeunis aereis in parencbymate Anthocerotis observa- 

 batur paucos annos ante*. Compages parasitica) bic delineatae 

 non sunt composita) ex NostocMdej imo vero ex Polycocco. Cel- 

 \u\dd spbajricaj absque ordine arctissime adjacentes colore obscure 

 olivaceo-viridi 0'(X)28-0'0O41 millim. diametro a peridermate di- 

 stincto (in sectione transversali) circumvelatae. His compagibus 

 desunt fila unicellularia ramosa, quae in Blasia pusilla colonias 

 Nostocboideas parasitice nidulantes omni directione percurrunt et 

 quae prolongationes e radiculis egressas in interiorem partem 

 plantar versas repra^sentant. 



Chthqin-oblastus salinits, Kutzing, var. Pasciculis apicibus 

 subito attenuatia, tricbomatibus spiraliter curvatis, cellulis rect- 

 angularibus diametro subsequalibus, vaginis byalinis (non lamel- 

 losis) quam formse typicse vagin® tenuioribus. Diam. tricbom. 

 0'0028-00041 millim. Diam. fascic. 0-066-0-13 millim. Inter 



On mud. Salt river. 



Afi 



Ltngbta -aERL'GixosA, Jgardh.y var. Afeicajs'a. L. tricboma- 

 tibus a^rugineis rigidis prolongatis in caespitibus latissimis crasse 

 membranaceis obscure serugineo-viridibus dense intertextis^ cellu- 

 lis diametro 5plo-GpIo brevioribus ad genicula lineis binis punc- 



* E. V. Zancfewski, '* Zur parasitischeu Lebensweise der Nostoc ichenoides/* 

 Botan. Zeitung, 1872, no, 5. 



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