46 Linnean Society. [Dec. 3, 



TRIPLADENIA. 



Perianthium 6-phylluni, petaloideum, patens, aequale, deciduum : foUolis 

 asstivatione involutis, basi biappendiculatis ! sessilibus. Stamina 6, 

 toro, nee basi sepalorum inserta. AnthercB erectse, extrorsffi, bilocu- 

 lares, duplici rima longitudinal! dehiscentes. Ovarium liberum, trilo- 

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

 Stigmata 8, recurvata. Pericarpium subbaccatum, 3-loculare, 3-valve, 

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

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

 cinea, hilo maxime fungoso-strophiolato, chalaza orbiculata concava 

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

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

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

 locatus, eodemque facie plana applicatus, funiculo maxime strophiolato 

 solummodo obtectus ! extremitate radicular! (cauliculari) paullo latiori. 



Herba (Novge Hollandia) perennis, rhizomate multicepite, caulihus subsim- 

 pUcibus multangulis, foliis amplexicaidibus ovato-lanceolatis, peduncuUs 

 axillaribus solitariis unijloris infra medium articulatis involucrelloque 

 3-phyllo munitis. 



1. T. Cunninghamii. 



December 3. 



Edward Forster, Esq., V.P., in the Chair. 



Edward S. Blundell, M.D., Lower Seymour-street, Portman- 

 square, was elected a Fellow ; and the Rev. William Stobbs, Strom- 

 ness, Orkney, was elected an Associate of the Society. 



The Rev. W. S. Hore exhibited a specimen of a remarkable va- 

 riety of Duck, supposed to be hybrid between the Anas Boschas 

 and Anas acuta of Linnaeus. 



Read, " Descriptions of three Vegetable Monstrosities lately found 

 at York." By the Rev. W. Hincks, F.L.S. 



Two of these monstrosities occur in species of Iris and much re- 

 semble each other. The species are /. versicolor and /. samhucina. 

 They have 5 parts in each circle, except that the inner circle of pe- 

 tals consists of 4 in one instance and only 3 in the other. It is suf- 

 ficiently manifest that they are produced by the union of two flowers 

 to form each, and they lead to the conclusion that when Irises with 

 4 parts in each circle occur (which are not very uncommon) they are 



