8 



Materials for a Flora of the Malayan Peninsula. 



Pollinia mealy 2 with 2 caudiclcs and 



2 discs. 

 Anther adnale to apex ol' column erect 

 Terrestrial herbs 



Fertile anthers two. 



Terrestrial herbs. Lip saccate 



. Tribe IV, Opiikydeae. 

 Tribe V, Cypripedieae. 



NOTE.— KiiT^ (Ann. Bot. Gard. Calc. Vol. VIII. considers tliat the 

 "Anther " in Opliiydea' is composed of tlie inner halves of two anthers, of 

 which the outer halves are represented by the small rufiulowe processes on 

 the outside commonly known as staminodcs. This is possible but I am hardly 

 prepared to endorse it, especially in view of the structure of the column of 

 Dilochia, in which the three anthers are clealy visible, though the two outer 

 ones are infertile. The wings and arms of the column I believe to be the 

 remains of the lilaments of these anthers. 



I. Epidendueae. 



1. Malaxeae. '^I'errcstrial or epiphytic, 

 flowers small, inflorescence terminal, column 

 footless. Pollinia 3-4 with no viscus. 



Column sbort. 



Terrestrial leaves flat . . 



Epiphytic, leaves fleshy distichous 

 Column long, arms short from the top 

 Column usually long, arms from the side 



2. Denduobieae. Epiphytic rarely terres- 

 trial, inflorescence lateral or terminal. Column 

 with a long foot. Inflorescence lateral or ter- 

 minal on an elongate stem or terminal on a 

 two-leaved pseudobulb 



Inflorescence fi'om the rhizome, pseudo- 

 bulbs one-leaved. 



Column short, not hooded arms short 

 subterminal 



Column longer hooded, arms long from 

 the side 



Pollinia 8. 



Sepals forming a mcntum . . 

 Sepals connate into a tube 

 Sepals free. Column long . . 

 Column sbort 



Flowers in long slender racemes, 

 minute . . 



1. Microstylis. 



2. Oberonia. 



3. Liparis. 



4. Plalijclinis. 



5. Dcndrohiiun. 



C. Bulbophi/Uum. 



7. Dendrochilum. 



8. Eria. 



9. Pur pax. 



10. Tylosttjlis. 



11. Phrcaiia. 



