Proceedings of the Linncean Society. 283 



Uvularia Hamiltoniana, A. Wall. Cat, n. 5088. 

 U. Betua. Ham. MSS. 



4. D. Horsfieldii, umbellis pedunculatis sub-5-floris, sepalis spathulatis 

 mucronatis puberulis, antheris filamentis duplo brevioribus, stylo 

 stigmatibus dupld longiore, foliis ovato-lanceolatis subpetiolatis. 



Uvularia Hamiltoniana, £. Wall. Cat. n. 5088. 



5. D. Leschenaultianum, umbellis sessilibus 3 — 5-floris, sepabs ovato- 

 lanceolatis acutis basi gibbosis, antberis filamentis vix duplo bre- 

 vioribus, stylo stigmatibus ter longiore, foliis ovatis subpetiolatis. 



Uvularia Lescbenaultiana. Wall. Cat. n. 5089. 



6. D. Pitsutum (Don, Prodr. p. 50.), umbellis pedunculatis 7 — 9-floris 

 sepabs cuneato-lanceolatis obtusiuscubs basi gibbosis, antberis fila- 

 mentis ter brevioribus, stylo stigmatibus duplo longiore, fobis 

 lanceolatis subpetiolatis. 



7. D. parviflorum (Don, Prodr. p. 50.), umbellis subsessilibus 2 — 7- 

 floris, sepalis lanceolatis acuminatis basi gibbosis, antheris filamen- 

 tis duplo brevioribus, stigmatibus stylo ter brevioribus, fobis 

 lanceolatis subpetiolatis. 



8. D. fulvum (Sabsb. in Hort. Trans, i. p. 330.), umbellis sessibbus 

 sub 4-floris, sepabs lanceolatis acutis basi breviter calcaratis, 

 antberis filamentis vix brevioribus, stigmatibus styb longitudine, 

 fobis lanceolatis subpetiolatis. 



Tbe autbor concludes bis paper with tbe description of a new and 

 nearly-related genus, founded upon a plant wbicb was introduced from 

 New Soutb Wales into tbe Royal Botanic Garden at Kew, in 1823, 

 and wbicb is remarkable for its unenclosed embryo, and for tbe singu- 

 lar appendages, similar to tbose of Pamassia, whicb are seated at tbe 

 inner base of tbe sepals. The foUowmg is the description of this 

 interesting genus : — 



TRIPLADENIA. 



Perianthium 6-phyllum, petaloideum, patens, aequale, deciduum : foliolis 

 sestivatione involutis, basi biappendiculatis ! sessibbus. Stamina 6, 

 toro, nee basi sepalorum inserta. Antherce erectse, extrorsae, bilo- 

 culares, duplici rima longitudinali debiscentes. Ovarium bberum, 

 triloculare : loculis biovulatis : ovulis campylotropis, coUateralibus, 

 erectis. Stigmata 3, recurvata. Pericardium sub baccatum, 3-lo- 

 culare, 3-valve, locubcido-dehiscens : loculis 1 — 2 spermis. Se- 

 mina sub-orbiculata, hinc convexa, inde angulata, v. concavius- 

 cula, glabra, nitida, colore succinea, hilo maxbne fungoso-stro- 

 pbiolato, chalaz^ orbiculata concava fusca, raphide dbnidio seminis 



2 P 



