v- ! 
Dr O G. G. J. VAN STEENIS, 
HERBARIUM, BUITENZORG, 
4 • ' JAVA, N.E. I, 
Burger gives a one page summary in English but perhfips my notes are sufficien 
His main conclusion is that though lightning occurs - in same cases, espe¬ 
cially on ridges and peaks -rather frequently in East Java it has no impor¬ 
tance for forest fires, the latter being practically always caused by anthro¬ 
pogenous accidents, wilful or not* 
On lime stone plants 4 have made a further short note in the recently recei¬ 
ved-printed report on my Atjhe expedition! 
Steenis,C.G.G*J.van, Exploraties in de ^ajo-landen# Algemeene resultaten 
der ^-Losir expeditie 1937 (Tijdschr.Kon.^ed.Aardr.Genootsehap 55 ,1936,P* 
)* wiich I translate here: 
.•{description of a trip) .... 'The geolQgy oS! the country is rathae 
confused to ray ey© win experienced eye* She principal formation 
is shale,but I also met with gravel layers and limestone • The 
latter is the most inter 1 esting f or me, on acc ount of their flora, 
some Gesneriaceae being hold as guides for limestone* Elsewhere 
I have doubted this and here I could prove, along the comas© of 
the Aer Poe till that Kpithema may occur on pure qpar ts-rocks( with 
the aid of chloric acid/ this was proven on the spot)$ Epithema 
is no/ guide for limestone, it is a rock plant* 
& > /'i 
For completeness* sake I mention further the article s# By L.van der Fiji, 
in De T ro pi sc he Natuur, shortly appeared after my conclusions on limestone 
flora in Java on the occasion of a sketch of the flora of the G.Tjibodas 
near ^jiampea (not ^jibodas on Mt Gedeh^. I have formerly sent you a reprint 
The article of Van der ^ijl deals with the lime stone flora of some hills 
near ^andoeng,Central West Java* It is published in De iropische Hatuur 
22 , 1993,P»86-95 « He distinguishes 5 different ecological plant groups 
in which this flora can be divided. This was not published when * wrote 
my Maleisohe Vegetetieschetsen; Van der i ijl is rather teleologically but 
strikes many interesting points, which you might need* 
I will be very happy to see your interesting paper printed, as you must 
have a lot of information, more than any one in Malaysia* 
There is another thing to be said and a favour asked by me* Some years 
ago you were so kind to furnish me with a copy of King * Gamble,Materials.v 
X have used it often and thought it was complete .However, parts 1,12 and. lgj) 
are absent* *f you might have some odd numbers at ^ingsjora I would be very 
anxioas to complete my copy* Recently there was published another part 
E-uphorbiaceae by u age. How can one obtain that? 
Occasionally you mentioned some time that there was an incomplete series 
6f parts of the Journ*Str*Br. Roy*Asiat.Soc* Is among these J,i o*B5 in which 
Merrill published his first article on Bornean plants? I have nos.II-III/ 
