66 Linnean Society. [May 25 



proposed as the Basis of their distribution into Tribes ; with the 

 characters of a new Family and three new Genera of Spiders." 



Mr. Blackwall begins by stating his objections to the bases of ar- 

 rangement adopted by MM. Walckenaer and Dufour in the subdi- 

 vision of the order Araneidea, and proceeds to give his reasons for 

 preferring a division founded on the number of eyes ; in conformity 

 with which he proposes three tribes, viz. 1. Octonoculata; 2. Senocu- 

 lina ; 3. Binoculina. 



In the first tribe he proposes three new genera, two of them be- 

 longing to a family which he characterizes under the name of Cini- 

 floridce : t?iese genera he also characterizes under the names of Ciniflo, 

 founded on the Clubiona atrox of Latreille, and Operaria, compri- 

 sing the Theridion benig?ium, Walck., Drassus exiguus, Blackw., and 

 Drassus viridissimus, Walck. The third genus characterized by Mr. 

 Blackwall, is referred by him to the family of Agelenid<e, under the 

 name of Cavator : it is founded on the Clubiona saxatilis, Blackw. 



May 5. 

 The Lord Bishop of Norwich, President, in the Chair. 



Read, " Additional Observations on some Plants allied to the 

 natural order Burmanniaceae." By John Miers, Esq., F.L.S. 



These observations have reference chiefly to the relative position 

 of the parts of the flower in the tribe of plants above-mentioned. 

 The author remarks, that the stamina, placentae, and stigmata in 

 these plants, are disposed in the same line, and opposite the inner 

 series of the perianthium. The placentae are always invariably 

 double; and the stigmata in such cases as the present are to be re- 

 garded as being made up of the confluent margins of the two ad- 

 joining carpel-leaves, as suggested by Mr. Brown in his learned 

 Memoir on Cyrtandrece lately published. 



May 25. 



The Lord Bishop of Norwich, President, in the Chair. 



This day, the Anniversary of the birth-day of Linnaeus, and that 

 appointed in the Charter for the election of Council and Officers ; 



