468 Myxophycese, Heterocystideis, Aphanizomenon. 



122. Sphaerozyga maritima b eiiipsospora (Desm.) Crouan = N. elli- 



psosporum Rab. 



123. — Passeriniana De Notaris = N. Passerinianum (De No- 



taris) B. et F. 



124. — granuiaris Kuetz. = N. humifusum Carm. 



125. — Fios-aquaB Bory = Aphaniz. Flos-aquo3. 



126. — bullosa Kuetz. = Hap. lami^iosus Hansg. 



127. — flexuosa Rab. = Cylindrospermum sp. 



128. — Garelliensis Mont. = Hap. laminosus Hansg. 



129. — Hassallii Rab. = Anab. circinalis Rab. 



130. — microcoleiformis Crouan = Hormothamnion enteromor- 



phoides Grun. 



131. — saccata Wolle = Wollea saccata (Wolle) Born. et Flah. 



132. — velutina Breb. = An. oscillarioides Bory. 



133. — elongata Crouan = An. oscillarioides var. elongatcv. 



134. — granulifera Crouan = Cylindrospermum granuliferum 



Kuetz. 



135. — riparium Crouan = Cylindrospermum riparium Kuetz. 



APHANIZOMENON Morr. [1836] in Bull. Ac. Belg. HI, p. 430 (sec. 

 Pfeiffer Nonienclator I, p. 229), [1838] Histoire d' un genre nou- 

 veau de la tribu des Conferv., in Mem. de TAcad. roy. de Belg. XI, 

 p. 11, (Etym. aphanizomenon, quod evanescit). Byssi, Confervxie 

 sp. Auct. Limnanthe Kuetz. [1843] in Linnaea XVII, p. 86 (nec 

 aliorum), Limnochlide Kuetz. [1843] Phyc. gener. p. 203, Sp. p. 286. 

 — Thallus minimus, squamiformis, aerugineus, libere natans, e 

 fihs in laminulas plumosas vel in fasciculos fusiformes aggregatis 

 formatus; trichomata evaginata, utrinque attenuata; sporae cylin- 

 dricae, elongatas, in intervallo heterocystarum formaUe, solitariie, 

 inter heterocystas sparsse. 



1. Aphanizomenon Flos-aquae (L.) Ralfs On the Nostoch. p. 340, t. IX, 

 f. 6, Anm. Observ. on Aphaniz. Flos-aquo3 in Quart. Journ. of 

 microsc. Sc. III, pag. 21, tab. III, f. 1-8, Kirchn. Algenflora von 

 Schles. p. 236, Milcr. Pflanzenw. p. 40, f. 131, Cooke Brit. Freshw. 

 Alg. pag. 240, t. XCIV, fig. 1, Hansg. Prodr. II, p. 73 c. ic, J. 

 Schm. Qyan. Dan. p. 96, c. ic, Schmula, Richt. et Fuchs in H. et 

 R. Phyk. Univ. n. 745! Wittr. in W. et N. Alg. exs. n. 278! 

 Thur. Ily et Hirn in W. N. ot Lag. Alg. exs. n. 1341 ! Hirn in 



