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XII. Description of a new Species of Dimorpha. By Edward 

 Radge, Esq. F.R.S. and L.S. 



Read May 5, 1807- 



The genus Dimorpha (Parivoa, Aubl.) having been adopted by 

 Willdenow from Schreber, and selected in his Elements of Bo- 

 tany as an example of a rare and uncommon fructification, 

 along with Aublet's figure and specific name of grandiflora i I 

 am induced to lay before the Linnean Society a figure and de- 

 scription of the real D. grandiflora, which I trust will illustrate 

 this beautiful genus more satisfactorily than it has been hitherto 

 done. 



This species, from its corresponding in all respects with 

 Aublet's description of his grandiflora, I imagine to be the plant 

 meant under that name by him. His figure appears to belong 

 to his second species, confounded with a very different plant. 



I am indebted to the researches of my friend Mr. Salisbury 

 for the detection of this mistake in Aublet's work; and I am 

 confirmed in this opinion by finding, upon examination of the 

 original specimen in Sir Joseph Banks's herbarium, that the 

 plant figured in Aublet's tab. 304, does not belong to the genus 

 Dimorpha. Specimens of that shrub in flower, collected in 

 Guiana, and now in my possession, prove it to be a species of 

 Cyclas. 



2 a 2 Dimorpha 



