PROCEEDINGS OF SOCIETIES. 157 



of Alum Bay was made by Dr. De la Harpe and Professor 

 Heer, who enumerated about forty species. The results of my 

 investigation have raised the number to 116 genera and 274 

 species, which are distributed into 63 families : 3 are Thallophyta, 

 2 Filiees, 5 Gymnospermae, 6 Monocotyledones, 28 Apetalae, 15 

 Gamopetalae, 54 Dialfpetahe, and 2 are doubtful. A sub-tropical 

 climate is indicated by the species of Ficus, Cinchonaceae, Sapo- 

 taceas, Ebenacea3, Biittneriaceae, Bombacere, Sapindacese, Mal- 

 pighiaceae, &c. The genera which are common to Alum Bay and 



Sheppey are: — Callitris, Cupressinites, Sequoia, Cyperites, Smilax, 

 Sabal, Aronium, Quercus, Juglans, Lauras, Xyssa, Proteoides, Cin- 

 chonidium, Apocynophyllum, Sapotacites, Diospyros, Symplocos, Mag- 

 nolia, Nelumbium, Hightea, Acer, Sapindus, Cupania, Eugenia, 

 Eucalyptus, Prun us, Amygdalus, Podogonium, Legumino sites, Car- 

 polithes. This seems to point to so close a connection between the 

 two Floras, that it does not appear advisable to distinguish the 

 leaves of the one from the fruits of the other by separate specific 

 names. By comparing the leaves and fruits of their nearest living 

 analogues, I have provisionally united them in many cases. The 

 small number of ferns and palms is remarkable. Many of the 

 Dicotyledons correspond with Miocene species, and I do not doubt 

 that there is a genetic connection between them. There are also 

 what appear to be certain ancestral species, if I may use the 

 expression, nearly allied to several Miocene species, whose 

 characters they unite. In addition to the great number of Miocene 

 species, whose origin can apparently be traced back to the Eocene, 

 there are not wanting indications that certain Miocene genera were 

 not completely differentiated in the Eocene. I select for mention 

 a few new forms possessing special interest. A Marattia, nearly 

 allied to If. Kaulfussi, J. Smith, is remarkable as being the first 

 species met in the Tertiary. The Celtis is allied to & Taped of 

 the Miocene Flora of Parschlug on the one side, and to the living 

 C* australis on the other. The only Adenopeltis is allied to an 

 American recent species. Two species of Bunksia, with their 

 seeds, also occur ; many leaves formerly named Banksia I now 

 agree may belong to Myrica. The Proteaceous Lomatia is repre- 

 sented by a fruit. Characteristic leaves of Aristolochia, and of an 

 ^liria allied to the recent A. spicata, R. Brown, and of a Clero- 

 dendron allied to the East Indian C. viscosum, Vent., are found, but 

 rarely. Of Diospyros is found calyx, berry, and leaf, the berry 

 oaring also in Sheppey. The Diospyros of Alum Bay and 

 °f Sheppey are the same species. The species of Cornus shows 

 perhaps a genetic relation with Miocene species. The leaves of 

 wo species of Malvaceae belong, I think, to two of the eight species 

 °i Hightea from Sheppey. A Bombaceous leaflet may belong, 

 irom its venation and form, to the Brazilian Salmalia; and leaves 

 01 Tetmstramia are nearly allied to a Miocene form. I have dis- 

 tinguished six species of ( upania, and these I provisionally refer to 

 «U3 nearest of the eight Sheppey species. The only Pistacia is 

 Wiied to the well-known P. vera. The putamens of two species of 

 rtmu* t of which one is common to Sheppey, and of an Amygdalus 



