. Elementary botany . Fig. 125. Fertilization in fucus ; fn, female nucleus ; ;//;/, male nucleus; ?/, nucleolus. In the left figure the male nucleus is shown moving down through the cytoplasm of the egg ; in the remaining figures the cytoplasm of the egg is omitted. (After Strasburger.) cystocarp. These cystocarps are developed as a result of fertilization. Other plants bear gonidia in groups of four, the so-called tetraspores. 272. Rhabdonia.—This plant is about the same size as the gracillaria, though it possesses more filiform branches. The cystocarps form prominent elevations, while the c
. Elementary botany . Fig. 125. Fertilization in fucus ; fn, female nucleus ; ;//;/, male nucleus; ?/, nucleolus. In the left figure the male nucleus is shown moving down through the cytoplasm of the egg ; in the remaining figures the cytoplasm of the egg is omitted. (After Strasburger.) cystocarp. These cystocarps are developed as a result of fertilization. Other plants bear gonidia in groups of four, the so-called tetraspores. 272. Rhabdonia.—This plant is about the same size as the gracillaria, though it possesses more filiform branches. The cystocarps form prominent elevations, while the carpospores Lie in separated groups around tin periph- ery of a sterile tissue within the cavity. (Sec figs. 128, 129.) Gonidia in the form of tetraspores are also developed in rhabdonia.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisher, booksubjectbotany
