494 Exti-acts from the Minute-Book of the Linnean Society. 



into a rose-like tuft : this kind of transformation is similar to that 

 described and figured by DeCandolle in Trifollum repens. 



The first case of increased or diminished development noticed by- 

 Mr. Hincks affects a specimen of Anagallis arvensis, resembling one 

 described by M. Moquin-Tandon as found by M. Gay, in which an 

 increased development of the exterior circle is accompanied by di- 

 minution in the interior ones : the effect produced is stated to be 

 very unequal in diff'erent flowers, but the more the calyx is enlarged, 

 the more the interior circles are contracted. The second case is the 

 well-known wheat-ear carnation, Dianthus Caryophyllus imbricatus, 

 L., which is noticed as probably affording the best example of the 

 monstrous multiplication of a particular circle. A third case occurs 

 in a capitulum oi Matricaria, in which the bracteae, consisting under 

 ordinary circumstances of paleaceous scales, are enlarged into full- 

 sized leaves, completely deforming the flower: the rose-ribwort is 

 noticed as a phcenomenon of the same kind. Fourthly, Mr. Hincks 

 mentions a monstrous variety or highly developed form of Conval- 

 laria multijlora, cultivated at Kew, which he presumes to be ihevar. 

 bracteata of De Candolle and Duby : in it the number of flowers 

 usually reaches five or six, and each of them proceeds from the 

 axilla of a small leaf on the pedicel. And lastly, the author notices 

 under this head a case of abortion or atrophy affecting the leaf of a 

 fern cultivated by Messrs. Rolleston, by which in one instance the 

 whole side of a frond, and in another the secondary veins with the 

 parenchyma at both sides are entirely suppressed ; a phaenomenon 

 which he has also observed in Scolopendrium officinale. 



Dee. 2 1 . The Secretary announced to the Society, that, since its last Meet- 

 ing, it had sustained a severe loss by the Death of its Librarian, Pro- 

 fessor Don, which took place at the Society's House on the 8th 

 instant. 

 1842. 



Feb. 15. An Election took place to supply the Vacancy caused by the Death 



