Spenceb. — On the Fresh-water Algae of New Zealand. 291 



B ATEACHO SPERMEiE . 



1. Batrachospermum moniliforme. Not uncommon. 



2. ,, pidcherrimimi, H., xiv., 1. From river Esk. 



3. ,, vagum, H., Ixiii., 2. From a creek on the Euataniwha Plains. 

 An unusual specimen of this plant was given me by Mr. Hamilton, from 

 the Horokiwi river. Its peculiarity consists in the development of a vast 

 number of hair-hke appendages, on some parts of the filament, of consider- 

 able length, and forming in some places a densely intricate matwork round 

 the filament which not only obscures it but also the whorls that emanate 

 from it. 



Ch^tophobace^. 



1. Draparnaldia tenuis, H., xi. 



2. ChcBtophoi'a endicefolia, H. ix. 



,, elegans, H., ix. 

 sp. n. 



Fig. 1. 

 In the species marked n. above, the filament tapers from base to apex. 

 It is irregularly branched, with few ramuli. Grelatinous investment not 

 apparent. Cells of the ramuli (varying from four to eight) filled with endo- 

 chrome. Terminal cell broad at the base, narrowing to a not very acute 

 point, exceeding the ordinary cells three or four times in length, hyaline. 

 Cells of the filament and branches as long, or twice as long, as broad. 

 Antheridial cells half to a quarter as long as broad, compressed. Stipitate, 

 capsular fructification was observed attached to both sporiferous and anthe- 

 ridial filaments. Zoospore, the only one seen, commencing to germinate, 

 quadrangular in outline, contains two large sporules, surmounted by four 

 cilia, one at each angle ; motile. 



CoNFEEVACEa;. 



1. Conferva bombycina, M.D., p. 158. 



,, floccosa, M.D., pi. V. 



2. Cladophora crispata, H., Iv. 



,, glomerata, H., Ivi. 



„ lyalUi, Hooker, Fl. N.Z. 



sp. n. (1). 



sp. n. (2). 



3. Ulothrix mucosa, M.D., pi. V. 



Cladophora lyallii is described by Hooker — "Handbook N. Z. Flora," 

 p. 717, and "Fl. N.Z. Ant. Voyage," vol. ii. p. 262. He mentions it as 

 having been found in Stewart Island. 



Cladophora crispata occurs in Kerguelen's Land. Hooker " Ant, 

 Voyage." 



