. Elementary botany . Fig. 129. Section of cystocarp of rhabdonia, showing spores. motile during certain stages. The red-snow plant may be obtained by scraping the red-looking matter out of the bottom of dry shallow basins in the rocks, close by fresh-water streams or lakes. By placing some of this material in a vessel of water for a few days the motile stage may be Flg- I3°- Pleurococcus (pro- obtained. The protococcus, or Pleurococcus vul- tococcus) vulgaris. garis, may be obtained on the north side of trees, rocks, and walls, in damp places.

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Keywords: ., bookcentury1800, bookdecade1890, bookpublisher, booksubjectbotany