2$2 Linnaan Society. 



mucronatis puberulis, antheris filamentis duplo brevioribus, stylo stig- 

 matibus dupl6 longiore, foliis ovato-lanceolatis subpetiolatis. 

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



5. D. Leschenaultianum, umbellis sessilibus 3 — 5-flori8, sepalis ovato- 

 lanceolatis acutis basi gibbosis, antheris filamentis vix duplo breviori- 

 bus, stylo stigmatibus ter longiore, foliis ovatis subpetiolatis. 



Uvularia Leschenaultiana. Wall. Cat. n. 5089. 



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

 sepalis cuneato-lanceolatis obtusiusculis basi gibbosis, antheris fila- 

 mentis ter brevioribus, stylo stigmatibus dupl6 longiore, foliis lanceo- 

 latis subpetiolatis. 



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

 sepalis lanceolatis acuminatis basi gibbosis, antheris filamentis duplo 

 brevioribus, stigmatibus stylo ter brevioribus, foliis lanceolatis subpeti- 

 olatis. 



8. D.fulvum (Salisb. in Hort. Trans, i. p. 330.), umbellis sessilibus sub 

 4-floris, sepalis lanceolatis acutis basi breviter calcaratis, antheris fila- 

 mentis vix brevioribus, stigmatibus styli longitudine, foliis lanceolatis 

 subpetiolatis. 



The author concludes his paper with the description of a new and 

 nearly-related genus, founded upon a plant which was introduced 

 from New South Wales into the Royal Botanic Garden at Kew, in 

 1823, and which is remarkable for its unenclosed embryo, and for 

 the singular appendages, similar to those of Parnassia, which are 

 seated at the inner base of the sepals. The following is the descrip- 

 tion of this interesting genus : — 



TRIPLADENIA. 



Perianthium 6-phyllum, petaloideum, patens, sequale, deciduum : foliolh 

 aestivatione involutis, basi biappendiculatis ! sessilibus. Stamina 6, 

 toro, nee basi sepalorum inserta. Antherce erectae, extrorsae, bilocu- 

 lares, duplici rima longitudinali dehiscentes. Ovarium liberum, trilo- 

 culare : loculis biovulatis : ovulis campylotropis, collateralibus, erectis. 

 Stigmata 3, recurvata. Pericarpium subbaccatum, 3-loculare, 3-valve, 

 loculicido-dehiscens : loculis 1 — 2-spermis. Semina sub-orbiculata, hiuc 

 convexa, inde angulata, v. concaviuscula, glabra, nitida, colore suc- 

 cinea, hilo maxime fungoso-strophiolato, chalaza orbiculatd concav^ 

 fusca, raphide dimidio seminis vix breviori, elevata : testa tenui, mem- 

 branacea; albumen copiosum, corneum, album. Embryo oblongus, 

 albus, hinc convexus, inde planiusculus, more Graminum extra albumen 

 locatus, eodemque facie plana applicatus, funiculo maxime strophiolato 

 solummodo obtectus ! extremitateradiculari (cauliculari) paullo latiori. 



Herba (Novae Hollandiae) perennis, rhizomate multicepite, caulibus subsim- 

 plicibus multangulis, foliis amplcxicanlibus ovato-lanceolatis, peditnculis 

 axillaribus solitariis unijloris ivfra medium articulatis involucelloque 

 ^-phyllo munitis. 



1. T. Cunninghamii. 



