249 147 
Rhizophoraceae 
by Johs. Schmidt. 
The Rhizophoraceae of our area are 8 and except one species, 
Caralliau integervima, which grows in the inland jungle, confined 
to the sea-shores and estuaries of rivers, forming the bulk. of the 
mangroves or tidal-forests so characteristic to Eastern tropical 
coasts, Along the shores of the Gulf of Siam the mangrove is very 
luxuriant and nearly all the species generally recorded from the 
tropics of the Old World occur here. Of the Rhizophoraceae') only 
one or two species (Kandelia Rheedii W. and Arn. and Brigitiera 
parviflora W. and Arn., see below) are wanting in the Siamese 
mangrove. As to Kandelia Rheedii it is said by Schimper (in 
Engler und Prant] Nat. Pflanzenfam. III, 7, p. 52) to occur from India 
to Hongkong and it is also quoted from the Malay Archipelago?) ; 
so we might expect to find it in the Gulf of Siam, but although I 
looked for it with great attention I was not fortunate enough to 
find it. It is widely distributed along the shores of the Bay of 
Bengal and is common in some places e.g. near Calcutta (according 
to a private communication by Mr. C.B. Clarke); but East of the 
Malay Peninsula it seems to be a rare plant and neither Schimper’) 
nor Karsten‘), who lately studied the Indo-Malayan mangroves, 
have found it. In a letter to me Mr. H.N. Ridley from Singapore 
writes: ,Kandelia Rheedii seerns to be very rare in our region. I 
have never been able to find it but once, in one of the rivers in 
Johore*. This is the nearest locality, that I know. 
I have examined the specimens of Kundelia Rheedii contained 
in the Kew and Copenhagen herbaria. Those specimens doubtful 
1) As to the circumscription of species 1 follow Schimper in his excellent 
work, Die Indo-Malayische Strandflora, Jena 1891. 
*) Henslow in Hook. f. Fl. Brit. India II, p. 437. 
3) Indo-Malayische Strandflora. 
4) G. Karsten: Uber die Mangrove-Vegetation im Malayischen Archipel, Biblio- 
theca Botanica Heft 22, 1891. 
10* 
