Archive image from page 290 of The cyclopædia of anatomy and. The cyclopædia of anatomy and physiology cyclopdiaofana05todd Year: 1859 -- '•'• ' the resulting cavities, zoospores are to be (bund, which, though they altogether resemble in structure those of the other olive-coloured Algas, are about three times as large. The supposed antheridia of Cutleria communicate to the tufts of which they form a part, their characteristic orange colour. The organs themselves are elongated, sausage-shaped vesicles: they contain a greyish, granular matter, in which, as the organ becomes ripe, indication
Archive image from page 290 of The cyclopædia of anatomy and. The cyclopædia of anatomy and physiology cyclopdiaofana05todd Year: 1859 -- '•'• ' the resulting cavities, zoospores are to be (bund, which, though they altogether resemble in structure those of the other olive-coloured Algas, are about three times as large. The supposed antheridia of Cutleria communicate to the tufts of which they form a part, their characteristic orange colour. The organs themselves are elongated, sausage-shaped vesicles: they contain a greyish, granular matter, in which, as the organ becomes ripe, indications may be observed of a division into several concentric layers ; the more internal of these layers being distinguished from those next the surface by the greater intensity of the orange colour which they present. After Fig. 133. a, a portion of one of the tufts, or sori, of Cutleria, showing the mode of attachment of the filaments which support the sporangia to the surface of the frond; , a ripe sporangium. Two others, half ripe, are also seen. Each is divided into eight compartments, in each of which is formed a zoospore,—200 diam.; b, zoospores ; c, the same in various stages of germination; the earliest stage to the right, 300 diam. side of which, tufts (son'), consisting of the reproductive organs, intermixed with hair- iike bodies, are scattered at irregular intervals. The sporangia, and so-called antheridia, are borne by different individuals, but their po- sitions and arrangements on the frond are identical. The former consist of oblong or club-shaped bodies, which are supported by hyaline pedicles, set into their inferior extre- mities. The cavity of each sporangium is divided by three transverse partitions into four cavities, each of which is again bisected by a longitudinal median septum. In each of Fig. 13-2.
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