Spencek. — On the Fresh-icater Algse of New Zealand. 295 



Pleurococcus. 



Hydrocytrum acuminatum, M. Die, 45. 



Desmidiace^ (including Pediastre^). 



1. Hyalotheca dissiliens, E., i; H., Ixxxiii. 



,, dubia, E,, XXXV. 



2. Aptogonum undulatum. 



3. Sphcerozosma vertebratum, E.. vi. 



,, pulchrum, E., xxxv. 



4. Micrasterias pinnatijida, B.., X. 



„ ampuilacea, Maskell, " Trans. N.Z.I.," vol. xiii. 



,, var. a, (j. 



5. Cosniarium cucumis, H., Ixxxvi. 



,, undulatum, E., xv. 



,, tetraophthalmiimi, E., xvii. 



,, botrytis, E., xvi. 



,, murgaritiferum, E., xvi. 



,, sp.n. 



6. Staurastrum muticuyn, E., xxi. 



,, orbiculare, E., xxi. 

 ,, gracile, E., xxii. 

 ,, tetracerum, E,, xxiii. 

 ,, paradoxum, E., xxiii. 

 sp.n. 



7. Closterium lunula, E., xxvii. 



,, acerosum, E., xxvii. 



,, lanceolatiim, E., xxviii. 



,, moniliferum,, E., xxviii. 



,, jenneri, E., xxviii. 



,, leibleinii, E., xxviii. 



,, diancB (venus), E., xxviii. ^ 



,, attenuatum, E., xxix. 



,, striolatum, E., xxix. 



,, lineatum, E., xxx. 



,, cornu, E., xxx. 



,, acutum (tenerriviuvi), E., xxx. 



8. Pediastrum, tetras, E., xxxi. 



,, heptactis, E., xxxi. 



,, pertusum, E., xxxi., 



,, napoleonis, E., xxxi. 



,, boryanum, E., xxxi. 



,, elUpticum, E., xxxi. 



,, sp.n. 



