Note 13 — Chapter III · SENSITIVENESS OF THE APEX OF THE RADICLE TO CONTACT AND TO OTHER IRRITANTS. (continued 2)
Reading edition
See F. Elfving’s interesting paper in ‘Arbeiten Bot. Institut., in Würzburg,’ vol. ii. 1880, p. 489. Carl Kraus (Triesdorf) had previously observed (‘Flora,’ 1878, p. 324) that the underground shoots of Triticum repens bend vertically up when the parts above ground are removed, and when the rhizomes are kept partly immersed in water.