. A handbook of cryptogamic botany. Cryptogams. 250 ALG^E. organ, antherids and ' sexual spores' (oospheres), formed within the sphaceles ; but Janczewski believes that the supposed antherozoids are in reahty the zoospores of para- sitic Fungi (Chytridiacese), to whose attacks these sea- weeds are especially liable. Pringsheim describes two kinds of fructification pro- duced by Cladostephus, one in the autumn, the other in the winter ; but Wollny sug- gests that both the autumnal fructification and the so- called unilocular sporanges may be due to the attacks of parasitic Chytridiacese. The Sp
. A handbook of cryptogamic botany. Cryptogams. 250 ALG^E. organ, antherids and ' sexual spores' (oospheres), formed within the sphaceles ; but Janczewski believes that the supposed antherozoids are in reahty the zoospores of para- sitic Fungi (Chytridiacese), to whose attacks these sea- weeds are especially liable. Pringsheim describes two kinds of fructification pro- duced by Cladostephus, one in the autumn, the other in the winter ; but Wollny sug- gests that both the autumnal fructification and the so- called unilocular sporanges may be due to the attacks of parasitic Chytridiacese. The Sphacelariaceae have a strong tendency to multiply by means of buds, gemmae, or propagules. Janczewski describes the mature gemmae as consisting of a pedicel and. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bennett, Alfred W. (Alfred William), 1833-1902; Murray, George Robert Milne, 1858-. London, New York, Longmans, Green, and Co.
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