Eh Bea a ob aaa 7" > DE BEE 
— 18 — 
Mädchen, deren bleibendes Erbe der Name und der Ruhm 
des Verstorbenen ist, — 
G. Limpricht, 
Repertorium. 
Prodromus of a study of the fresh water Algae 
of eastern North America. By Horatio l. Wood, 
Ir. Procedings of the American Philosophical Society 
Vol. XI. 1869, p. 119—145. 
(Schluss.) 
Chlorophyllophyceae. 
Palmella Jesenii Wood. Sp. n. P. thallo indefinite ex- 
panso, initio dilute aut laete viride, molle, pellueidulo; aetate 
provecta firmo, tuberculoso, saturate olivaceo-viride: cellulis 
globosis vel elliptieis, — in thalli aetate immaturo, plerum- 
que singulis aut geminis, saepe distantibus, — in aetate 
provecta saepe in familias connexis, plerumque confertis; 
tegumentis in thalli aetate immaturo plerumque diflluentibus, 
aetate provecta plerumque distinctis, Diam. cell. glob. max 
Yg500" —= .00028; cell. oblong. max. Yg500" = .0004". 
Scenedesmus polymorphus Wood. Sp. n. 8. cellulis 
fusiformibus, aut ovalıbus aut elliptieis aut globosis, singulis 
aut 2—8 conjunctis, plerumque utroque polo aculeo unico, 
interdum aculeis duobus, instructis: apieibus obtusis, acutis, 
vel acutissimis gracillimis, rectis, modice elongatis, inclinatis. 
Diam. Yasoo“ — "as00“; plerumque Yaooo“., New Jersey. 
Camden. 
Palmogloea elepsydra Wood. P. saxicola et bryophila, 
in gelatina achroa interdum dilute viride nidulans, cellulis 
eylindrieis, cum polis obtuse truncato-rotundatis, diametro 
2—3 plo longioribus; lamina chlorophyllacea axili, plerum- 
que indistineta, saepe nulla; plasmate dilute viride; nucleo 
plerumque distineto; zygosporis subfuseis aut subglobosis 
aut enormiter in clepsydrae forma; membrana externa 
enormiter excavata et sulcata. Diam. 13.500“. Prope 
Philadelphia. 
Rhynchonema elongatum Wood. Sp. n. R. articulis 
vegetativis diametro 7—20 plo longioribus; artieulis sporiferis 
multo brevioribus, valde tumidis; eytiodermate utroque fine 
protenso et replicato; fascia unica, laxissime spirali; anfrac- 
tibus plerumgue 7; sporis elliptieis, diametro 1 —2'%, plo 
longioribus. Diam. spor. %500° = .00106 “; artic, vegetat. 
4.500 —= .0005. Prope ee 
Rhynchonema pulchellum Wood. Sp. n. R. articulis 
sterilibus diametro 2—3 plo longioribus; sporiferis nonnihil 
