55 



Annals and Magazine of Natural History. Nos. 101, 102 and 

 103. Courtis Fund. 



Gray, G. R. Genera of Birds. 4to. No. 16. Auduhon 

 Fund. 



Sept. S, 1845. 

 The President in the Chair. 



Dr. S. Cabot, Jr., c6mmunicated a hst of birds observed 

 by him, during a late visit to the Magalloway River, one of 

 the sources of the Androscroggin, including only such as he 

 had ascertained to have their breeding places in that vicinity. 

 These were : 



Mergus serrafor, Anas sponsa, 



" cucidlatus, Fuligula clangula. 



Anas obscura, 



He also exhibited a specimen of Orismia canivetii, Les- 

 son, concerning which he had lately noticed a remark in 

 M. Lesson's work, to the effect that the species is very rare, 

 and that the author had never seen a perfect specimen. 

 Dr. Cabot procured his in Yucatan. 



Prof. Asa Gray read a paper prepared by himself and Dr. 

 George Engelmann, entitled, " Plantce LindhehneriancB : 

 an Enumeration of the Plants collected in Texas, and dis- 

 tributed to Subscribers, by F. Lindheimer ; with Remarks, 

 and Descriptions of New Species.^^ It was referred to the 

 Publishing Committee. In it the following new genera and 

 species were characterized : 



New Genera Proposed. 



Thysanella. Floras dioico-polygami. Perigonium penta- 

 phyllum petaloideum ; phyllis omnibus erectis margine scariosis 

 et eroso-fimbriatis, duobus exterioribus cordato-sagittatis post 

 anthesin auclis, interioribus minoribus ovato-lanceolatis, pectinato- 

 fimbriatis. Stamina 8 : filamenta filiformia perigonium adse- 

 quantia. Ovarium (infertile) trigonum : styli 3 filiformes ; stig- 

 matibus simplicibus. — Herba ramosa, glabra (bipedalis) in 



