64 



the other " smelt." I have never seen it exceed seven inches in 

 length, and very few are over five. * 



0. thale'ichtliys presents an entire blending of the characters on 

 which Giravd proposed to separate the genus Thaleiclitltys from Osme- 

 7'us. With the eight branchial rays, the large mouth , and the advanced 

 position of the ventrals of Tlialeiclithys, it has the toothed jaws 

 and palatine bones of Osmerus ; and it may, by the way, be re- 

 marked, that the very species which the describer takes as the 

 type of Thaleicldhys has occasionally teeth on the palatines well 

 developed ; and one specimen in my possession shows even dentic- 

 ulations on the maxillaries. It cannot be doubted, therefore, that 

 ThaleieJitJiys will remain merely as a synonym of Osmerus, and 

 that the species on which it was proposed will bear the name 

 Osmerus paeijieus. Nor does Argentina seem much better founded 

 than Thaleicldhys. The distinguishing characters are too insig- 

 nificant and too Httle constant to be of value, and unless we adopt 

 the custom which has been lamentably prevalent, of taking as gen- 

 eric features those which are only of specific rank, the genus 

 Osmerus will include the species which have been referred to the 

 three names. 



September 3, 1860. 

 President in the Chair. 



Dr. Kellogg read the following paper : 



The plant, here figured and described, was raised from seed 

 (probably brought with bulbs from the interior, and thus accident- 

 ally distributed) by Mr. H. G. Bloomer, Botanical Curator to the 

 Academy. 



We find no description answering to it fully, either generically 

 or specifically, yet we think, with a little revision, it probably be- 

 longs to Hemizonia. 'We shall for the present ofier it as 



Hemizonia haJsamifera, (Kellogg) Fig. 13.— Stem annual, one to 

 two feet high (in cultivation) ; divaricately branchhig from the base ; 

 branches slender, hairy-pubescent, (white below) glandular and 

 glandless hairs intermixed above ; heads numerous, loosely pan- 

 iculate-corymbose, inflorescence centrifugal, involucral bracts erect. 



Lower leaves pinnatifid ; the lamina decurrent into a winged 

 three-nerved ])etiole, somewhat stem-clasping, the lobes in three to 

 seven pairs ; linear entire, clothed with glandular and glandless 

 hairs intermixed, three to five inches long ; the upper cauline and 



