180 

 PLATE 4. 



E. setosa F.v.M. 



24. Woolgni, Northern Territory (Dr. H. T. Jensen, July, 1916). Seedling with two cotyledon leaves 



and two pairs of very young leaves. The cotyledons are slightly coloured above, pale-green 

 beneath. Sown 14th December, 1917; drawn 7th January, 1918. 



25. (Ref. No. A 13.) Northern Territory (G. F. Hill, No. 398, 29th June, 1911). Seedling more advanced 



than fig. 24. Sown 3rd December, 1914; drawn J. 5th December, 1914. 



25a. The same plant as No. 25, drawn 9th May, 1915, still in the opposite stage. 



E. terminalis F.v.M. 



26. (Ref. No. 59 H.H.). Near Rifle Pit, Darwin (G. F. Hill, 5th August, 1916). Seedling with the 



cotyledons attached and four pairs of opposite elliptical leaves above them. Note the filiform 

 petioles to the cotyledons. Sown 5th May, 1919; drawn 14th October, 1919. 



27. The same plant at 6 inches high, drawn 16th February, 1920. The leaves are now more elongated 



and oblong. 



Seen again at 9 inches high, the upper leaves had grown from 7 cm. to 10 cm. long, and 

 still oblong, but much narrowed into the petiole, and darker in colour. 



27a. (Same particulars as No. 27), drawn 22nd March, 1920. An opposite leaf from a plant 6 inches high 

 which has changed from oblong to narrow-lanceolate. 



28. (Same particulars as the preceding), drawn 8th March, 1921. The plant at that date was 14 inches 



high and just breaking into the alternate stage. The alternate leaf depicted is somewhat oblong 

 abruptly acute, 12 cm. long, 28 mm. broad in the middle. 



E. maculata Hook. 



29a. (Ref. No. X 93.) Gosford (Andrew Murphy, 15th January, 1918). A seedling with two cotyledons, 

 and two alternate leaves immediately above them. 



29. (Same particulars as 29a), drawn 23rd November, 1918. Two peltate leaves from a seedling 9| inches 



high. 



Figs. 30 and 31 will be found on Plate 5. 



E. peltata Benth. 



32. (Ref. No. B 12.) Beta, Queensland (J. L. Boorman, August, 1912). A seedling showing the filiform 



hypocotyl and the two cotyledons. Sown 25th September, 1912; drawn 17th October, 1912. 



33. (Ref. No. B 25.) Alma-den, North Queensland (R. H. Cambage). Upper portion of a seedling 12 



inches high, showing the broad, peltate leaves ; the two lower ones are more distinctly alternate 

 than the two above them. Sown 29th December, 1914; drawn 23rd March, 1915. 



Figs. 34, 35 and 36 will be found on Plate 5. 



E. trachypMoia F.v.M. 



37. (Ref. No. X 198.) (See also Plate 5, figs. 34-36.) Maryborough, Queensland (C. T. White. 



February, 1918). A seedling 3 inches high, showing the slender, mature, elongated hypocotyl 

 and four pairs of ovate to oblong leaves. Sown 5th October, 1920; drawn 8th February, 1921. 



At 10 inches high this seedling showed the characteristic peltate leaves, as shown in figs. 34 

 and 35, Plate 5. 



E. corymbosa Sm. 



38. (Ref. No. B 48.) Hornsby (W. F. Blakely, October, 1914). A seedling about 4 inches high, showing 



the hypocotyl, two cotyledons, first pair of leaves and six peltate leaves, the first two of which 

 are alternate. Sown 29th December, 1914; drawn 4th March, 1915, 



