33 



for root aeration. Grluck 1 lists eleven speoies as pos- 

 sessing some form of root-aeration organ. These are 



? 3 



Lysimachia vulgaris . L. thyrsifora . liythrum salicaria . 



L. graefferi , Lotus uliginosus , L. biflorus, Penan the 

 aquatica , Scutellaria galericulata , Lye opus europaeus , 4 



Jussiaea repens . and _J. grandiflora . To these must be add- 



6 7 



ed Aeschynomena indica and A^ hispidula , Eesaea verticil - 

 la ta , Taxodium distichum, y Carapa moluccensis. , 



1. Wasser- und Sumpfgewachse, vol, 3, pp. 464, 

 602 (1911). 



2. See also V/itte,- Sartryck ur hot. stud, 

 lillagnade F. R. Kjellman, 11906). 



3. See also Goebel,- Pflanzenbiol. Schilder- 

 ungen, vol. 2, p. 261 (1893). 



4. See also Goebel,- pflanzenbiol. Schilder- 

 ungen, vol. 2, p. 262 (1893). 



5* See also Seliber,- Acta Leop. Carol Acad. 

 84 : (1905); Velenovsky,- Yergleichende Morph. 

 Pflanzen, vol. 2, p. 394 (1907). 



6. Goebel,- Pflanzenbiol. Schilderungen, vol. 

 2, p. 262 (1893). 



7. Ernst,- Bot. Ztg. : 586 (1872). For 



the interpretation of the mopphological data see Goebel, - 

 Pflanzenbiol. Schilderungen, vol. 2, p. 262 (1893). 



8. Schrenk,- Bull. Torrey Bot. Club 16_: 315 (1889 



9. Kearny,- Contrib. Ij. S. Nat. Herb. 5: 



(1901). 



10. Karsten,- Biblioteca Bot. 22: 51 (1891). 



