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Podostemaceae 



by Bug. 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 metzgerio'ides published by Tri men 

 in 1892 (Handbook of the Flora of Ceylon, part III, p. 419, pi. 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. Möller, and in some points the Siamese Podostemacea approaches 

 close to this species also. 



I have named the new Siamese species Polyjrteurum Schmidtia- 

 num in honour of the finder. 



Regarding the reasons why I prefer recording Hooker and 

 Bent ham's subgenus Polypleurum as a distinct genus and prefer 

 placing the new Siamese species under it I beg to refer to my 6 th 

 paper on the order Podostemaceae in the „Kgl. Danske Videnska- 

 bernes Selskabs Skrifter" 1901, where both Polypleurum Schmidtia- 

 num and Cladopus Nymani are figured. 



I give the following diagnosis of it: — 



Polypleurum. 

 V. Schmidtian urn Warmg. n. sp. 



Radices in rupibus repentes, iisdem arete adpressæ, late lineares, 

 planæ, irregulariter subdistiche ramosæ. Caules in facie superiore 

 radicum prope margines nascentes brevissimi, foliis paucis (ad 5 — 6) 

 instruct!. 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 



