21 



Spiculae albidae, ima basi purpurascentes, 9 mm. lono-ae. 

 Glumae lanceolatae, a latere visae acute longiiiscule acumina'tae", 

 }iyalmae,glabrae,l-neives, in carina laeTes. Valvae oblongae, ad 

 aristae msertionem 3-5-4 mm. longae, undique laxe pilosae, 

 tenuissime sub-O-nerres, lobis aciitis O'S mm. lonffis, setis latera- 



mm 



columniformi 



■mucronnlatae. 4-5 



Antherae 



mm 



South Africa. Basutoland : in tlie Veld near Leribe, 

 A. Dieterlen 222. Lingua Sesotba :— Molalaoa lilolo. 



V.~GREEN MANURES. 



An account, hj^ Mr. W. M. van Helten, of experiments carried 

 out in Java during the past four years with various plants as 

 green manures, has recently been published in Buitenzorg as 

 INo. 1 of Mededeelingen uif den Cultuurtum,* and has been sent 

 to Kew by the Director of the Department of xlgriculture at 

 Buitenzorg. 



Some fifty-three different species of plants have been ex- 

 perimented with in connection with their value as cover plants 

 for the soil and as green manures, in order to mitigate the 

 poverty of the soil brought about by clean-weeding and the 

 denudation "of the soil by rain. 



Of the numerous plants tried, many were found unsatisfactory 

 m some particular, but six of them are to be recommended as 

 a result of the trials* 



Particulars of these six plants have been translated from the 

 Dutch and now follow. 



The original paper is illustrated by excellent fio*ures of the 

 various cover crops growing en an extensive scale m Java. 



Leucaena glauca, Benth, 



{Lam tor o, FeteJi tjina^ Kavilandingan.) 

 This is one of the oldest manurial plants under trial: 



satisfaction. The Leucaena or Lamtoro 



gr^i 



ways, the growth should be kept in check according to the plants 

 cultivated. In young coffee plantations it should be kept down, 

 but it may be grown higher underneath Hevea, Ficus, and Cocoa- 

 nut palms. Lamtoro requires fairly good soil; it does not grow 

 much more than six inches and looks very sickly in poor soil. 



In West Java the growth is not as vigorous as it is in the East 

 and in Middle-Java. Lamtoro may be planted from sea-level up 

 to 3500 feet. It was noticed that seeds germinated better and 



grew mo 



monsoon 



I 



* Mededeelingen uit den Cultuurtuio, No. 1. Be Resultaten, 

 verkregen in den Cultuurtuin met verschillende groenbemesters, door 

 W. M, van Helten, Buitenzorg, 1913. 0.60 fr. G. Kolff & Co., Batavia. 



