Contervoideae, Ulotrichiaceae 177 



Subfatnilia secunda Cheetophoreae (Harv.) Hass. 



Choilophoreoi Harv. [1841] Mau. p. 10 eb 121 {Chastophoroidecs) em. Hassall 

 [1815] Brit. Fresliw. Alg. p. 120, Haiisg. Prodr. pag. G4 et iii Flora 1888, 

 pag. 222. 



Chmiophoraceoi De-Toni et Levi [1888] Fl. Alg. Ven. III, p. 171 s. str., Cooke 

 Brit. Freshw, Alg. p. 188, excl. parte. 



Thallus tum e filamentis articulatis, parura ramosis, Iiinc inde 

 ramellos radiciformes plerumque inarticulatos emittentibus, tum e fi- 

 lamentis articulatis, ramosissimis, tegumento mucoso rhizoidibusque 

 instructis constans; cellulo) uninucleatte; chlorophora parie^-alia, ta}- 

 niceformia, sa3pe tantum anguste cinguliformia, raro subclathrata 

 margineque irregulariter lacerata, pyrenoidem singulum vel plures 

 includentia; membrana cellularum vegetativarum plerumque tenuis, 

 valde lubrica '); cellulai terminales ramorum sa?pius acuminatae vel in 

 pilum longum, hyalinum, ssepe articuiatum abeuntes. 



Propagatio aplanosporis -) et acinetis ^). 



Generatio zoogonidiis intra cellulam (zoogonidangium, zoosporan- 

 gium) a ceteris vegetativie haud diversam ortis, 2- vel 4-ciliatiy, mem- 

 branaj cellulao matricalis ruptura vel diffluentia liberatis. 



Obs. Genus Cliloroclonium Borzi mihi ab auctore in litteris solo 

 nomine communicatum et in raeo Conspectu generum Chlorophycea- 

 rum omniura hucusque cognitorum (Notarisia III, 1888, n. 10, p. 448) 

 enumeratum, adhuc in lucera non prodiit neque diagnosin, etsi plu- 

 ries clarissirao auctori petitam, hucusque habui. Genus vero Micro- 

 thammion Naeg. Chroolepideaceis adscripsi, Phwoiha?nnion Lagerh. 

 (Ueber Phaeothamnion in Biliang till Vet. Akad. Hand 1884, Bd. IX, 

 n. 19) Syngeneticis, observante cl. Ilansgirg Prodr. pag. 31, re- 

 feram, 



Conspectus generum. 



I. Genera hydrophila h. c. ad floram aquas dulcis pertinentia. CCfr. En- 

 doderma). 



1) Massaj gelatinosae evolutio e membrana coUulari est in Chceiophora 

 conspicua. 



2) Cfr. Gay Sur la forraation des Kystes chez les Chlorosporees, — Paris 

 1886. 



3) Sec. Wille Algol. Mittheil. pag. 505 in generibus ChcBlophora, Drapar- 

 naudia, Sligeoclonio e genesi zoogonidioriim iaterriipta efTormantur cellulte 

 perdurantes seu cystae acinetis analogte. 



12 



