156 958 
Podostemaceae 
by Eug. Warming — Copenhagen. 
The Danish Expedition has been so fortunate as to find a new 
Podostemacea, the first known from Siam. As far as I can see it 
is a new species. In habit, size, the structure of stem, form of leaf 
and more particularly in the flower having only one stamen it 
much resembles the Podostemon metzgerioides published by Trimen 
in 1892 (Handbook of the Flora of Ceylon, part Ill, p. 419, pl. 76), 
which latter, however, differs widely from it in other respects and 
is now (1900) placed under a new genus Farmeria by Dr. John 
Willis (see Trimen’s Handbook part V, Additions p. 286). Strangely 
enough during the last few years there has been found a third 
monandrous Podostemacea in Asia (Java), viz. Cladopus Nymani 
Hj. Moller, and in some points the Siamese Podostemacea approaches 
close to this species also. 
I have named the new Siamese species Polyplewrum Schmidtia- 
num in honour of the finder. 
Regarding the reasons why I prefer recording Hooker and 
Bentham’s subgenus Polypleurum as a distinct genus and prefer 
placing the new Siamese species under it I beg to refer to my 6" 
paper on the order Podostemuceae in the »Kgl. Danske Videnska- 
bernes Selskabs Skrifter* 1901, where both Polypleurum Schimidtia- 
num and Cladopus Nymani are figured. 
I give the following diagnosis of it: — 
Polypleurum. 
P. Schmidtianum Warmg. n. sp. 
Radices in rupibus repentes, iisdem arcte adpresse, late lineares, 
planee, irregulariter subdistiche ramose. Caules in facie superiore 
radicum prope margines nascentes brevissimi, foliis paucis (ad 5—6) 
instrneti. Folia disticha simplicia, linearia, obtusa. Flos in caulibus 
solitarius terminalis, primum inter folia duo ad basin in vagina 
ampliata occultus, dein emergens longe pedicellatus. Spathella 
