233 



leaves. In the dried material the leaves have ' scorched ' spots or 

 areas, spotted with black dots and surrounded by dark brown 

 l)or(lers. 



Eugenia gakyopiiyllata, Thnnb. {Myriaceae). The Clove. 



Irpex farus. a yellow "toothed" fungus (Ili/dnaceae) is re- 

 ported by Bancroft as causing a root disease. Eidley states that a 

 red-spotting leaf fungus, probably a member of the Perono- 

 sporaceae, was responsible for abandonino- the clove cultivation 

 about 1860. 



Eugenia grandis, AVt. (Myriaceae). Jambu Ayer Laut. 



Valsaria cinnamomi (Spliaeriaceae) on dead bark, collected 

 by Baker at vSingapore. The fructifications of the fungus ap]3ear 

 as dark brown or black eruptions through fissures of the bark. 



T. Y. Chipp. 



(To he conUnucd) . 



Some Trials of Food Plants in the Economic 

 Gardens II, 



Lima Beans (Phaseolus lunatus). 



The Lima Beans, Small Sieva Pole, originally received from 

 the firm of A. H. Dreer, Philadelphia, IJ. S. A., and which were 

 reported upon at length in the Garden's Bulletin of -Ith July 1919, 

 have teen kept under cultivation continually in the Economic 

 Gardens since July 1918. It was shown, by the records of seed' 

 gathered up to, and inclusive of the fourth generation, that the 

 crops had been well maintained and that the l)eans had not de- 

 generated in weight, size or quality. 



But the results since obtained do not confirm this; they in 

 fact have disappointed the writer's expectations. It is not, how- 

 ever, yet time to ascribe the falling off in the subsequent crops to 

 actual degeneration in the seed, for, in recent weighings taken in 

 Octol)er 1919, it was found that the weight of the beans was well 

 maintained, and the percentage of germinations on a plot of 10o& 

 plants, sown on 28th Octo1:)er, the last of the season, was as high 

 as 96 per cent. At the time of writing (22nd Xovember) this plot 

 shows the most vigorous and healthy growth, a fact which would 

 exclude any tendency to degeneration. 



To explain the discrepancy between this last statement and 

 tlie disapiwinting results of the crop as a whole, it is necessary tO' 

 refer to the locality where the trials were made. The area planted 

 in Lima beans was a little over two acres consisting (all but a small 

 part of 4000 s([uare feet, or one eleventh of an acre) of a low strip 

 of land skirting a hill, and made of drift soil, either washed from 



