144 



OOCYSTIS AND EREMOSPHiERA, 





S-a^ 



jtf 









9^mo'^ 



VuJ 





Auburn (57, 59, 67, 118, 119, 135, 140, 148, 149); Rookwood 

 (107, 171); Potts Hill (138); Guildford (70, 124); Canley Vale 

 (128); Lismore (240); Coogee (4, 13, 24). 



Cf. Be Bary, Conjugatse, 1858, pp.55, 56, T. viii., f.26, 27; 



Chodat, Entwickelung der Eremo- 

 *^Cj^^ sphcBva viridis, Bot. Zeit., liii., T. v.; 



Eichler, Matery. do flory Miedzyrzeca, 

 1894, T. ii., f.5; G. S. West, Brit. Frw. 

 Algffi, p. 229, f.99. 



De Bary's figures work out at diam. 

 82-84/x. Eichler, I.e., p. 123, gives 40/x, 

 if I read aright his note ("w kazdej do 

 40 /x srednicy"), but his figure shows 

 diam. 65 /x. G. S. West furnishes 55- 

 200/x, and Chodat 25-200/x. I have 

 never observed any vegetative speci- 

 men or auto&pore smaller than diam. 

 42/x. The much greater size of the 

 mother-cells, compared with that oi 

 even the largest vegetative cell, shows 

 Text-fig. 27. that the formation of autospores is 



E. riridi.^ Be By. (a) x 300, generally accompanied by inflation of 

 (/;) X ;390; after De Bary. * • • i i, 



the ongmal cell. 



Var. ACUMINATA, n.var. (PI. ix., f.3-6). 



Cellulse liberie subglobosse vel ellipticje, ad polos plus minusve 

 acuminatte, interdum apicibus papilla humillima instructis. 



Cell. veg. 63 x 57, 70 x64, 70 x 67, 72 x 64, 74 x 70, 78x67, 

 80x65, 80x74, 80x75, 82x74, 82x76, 95x87, 100x90, 

 106 X 95, 120 X 114/x. Membr. crass. 1-4/x. 



Auburn (67, 106, 140, 148, 149, 159); Potts Hill (138); Rook- 

 wood (163); Lismore (240). 



This variety is not uncommon wherever the type is found. 

 With the two following, it shows distinctly the polarity of Etp- 

 mosphcera, which is very little noticeable in spherical specimens. 

 Every degree of inflation can be observed, connecting this form 

 with the type, but the apices are more or less acuminate in all. 



