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Sylloge algarum omnium hucusque cognitarum

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ConfervoiileDe, Chroolepidace?e, Trentepohlia. 235<br />

Leptosira. Cellnla? omnes in zoogonidangia sese transformantes ; cellnla3 zoo-<br />

gonidiparae a ceteris forma liaud differentes.<br />

Chlorotylium. Filamenta parallela, repetite dichotoma, e cellnlis alternatim<br />

elongatis hyalinisque et abbreviatis viridibus constituta.<br />

Microthamnion. Filamenta ramosa; zoogonidangia terminalin, a cellulis ve-<br />

getativis forma magnitudineque differentia.<br />

y (?on^ro5?>a. Thallus hydrophilus; fllamenta subramosa; chloropliora magna,<br />

pyrenoide instructa. [Genus ab auctoribus nonnullis cura Trenlepohlia<br />

conjunctum, ab aliis auctoribus evolutionis aliarum Chlorophycearuni forma<br />

existimatum].<br />

Genus halophilum [Cfr. Piliniam? dilulam].<br />

Pilinia. Filamenta parce ramosa, minuta; zoogonidangia in ramulis supremis<br />

evoluta, zoogonidia numerosa foventia.<br />

TRENTEPOHLIA Mart. [1817] Fl. crypt. Erlang. p. 351 non Aresch.<br />

[1847] nec Boeckeler [1858] (Etym. a cl. Trentepohl botan, olden-<br />

hurgensi), Thur. in Le Jol. List. Alg. Cherb. p. 105, De-Toni et<br />

Levi Misc. phyc. series I, p. 6, Hansg. Prodr. p. 85, Wille Om<br />

Svaermecell. og deres Copul. hos Trentepohlia in Botan. Notiser<br />

1878, Alg. Mittheil. p. 426, De-Wild. in Bull. soc. R. Bot. Belg.<br />

1887-88, Lagerh. Bidrag till Sveriges algflora 1883, pag. 73-74,<br />

Chroolepus Ag. [1824] Syst. p. XXL Kirchn. Alg. Schles. p. 75,<br />

Cooke Brit. Freshw. Alg. p. 184, Wolle Freshw. U. S. p. 121, Gobi<br />

Algol. Studien iiber Chroolepus iii Mel. biol. tires du Bull. Acad.<br />

imper. des sciens. de S. Petersb. tome VIII, 1871 cura tab., Ca-<br />

spary Die Zoosporen von Chroolepus Ag. und ihre Haut in Flora<br />

1858, n. 36, Bi/ssus, Eclocarpus, Conferva, Lichen et Dematium<br />

sp. auct., Amphicomium Nees [1817] Syst. pag. 09 in adnot.,<br />

Phijloconis Bor^' [1797] Mem, Conferv. Cfr. Uster. Ann. XVIII.<br />

p. 115 et Leman [1826] Dict. V, 40, p. 155, saltem pro parfe.<br />

— Thallus e filamentis irregularibus, lateraliter ramosis, stepe<br />

dense intricatis constans, aorophilus, plus minus Violsc odore fra-<br />

grans ; contentus cellularum rufo-brunneus, aureus vel aurantiaco-<br />

flavus, subinde in viridem mutatus chlorophora minuta, discifor-<br />

mia, sine pyrenoide; ramuli secundarii primariis ccquicrassi ; cel-<br />

lulse ramorum terminales haud acuminatse.<br />

Propagatio acinetis vel (ut videtur) zoogonidiis (zoosporis); de<br />

pseudo-zygotis Cfr. Trentepohliam Bleischii var. Picece.<br />

Generatio zoogonidiis intra zoogonidangia e cellulis vegetativis<br />

forma magnitudineque plerumque distincta et lateralia vel termi-<br />

nalia vel etiam intercalaria (?) 25-32 vel ultra evolutis, 2-cilia-

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