. Elementary botany . Fig. 136. Fertilization in saprolegnia, tube of antheridium carrying m the nucleus of the sperm cell to the egg. In the right-hand figure a smaller sperm nucleus is about to fuse with the nucleus of the egg. (After Humphrey and Trow.)

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Keywords: ., bookcentury1800, bookdecade1890, bookpublisher, booksubjectbotany