184 Scientific Intelligence. 



single specimen to examine, we did suppose that those spikes which have 

 the involucres united by a membrane, might belong to a younger state of 

 the fructification. On the specimen, however, from which Mr Rudge's 

 figure was made, (and which was gathered in Guiana by Mr Martin,) be- 

 ing submitted to a careful examination, it was found to be composed of 

 two individuals ; thus, as it were, tending greatly to strengthen the opinion 

 of M- Bory. 



It is, however, not a little remarkable, that Kaulfuss, in his work on the 

 Ferns, which we shall notice in the next number of this Journal, and who 

 appears, from his manner of describing it, to be well acquainted with this 

 plant, not only quotes the figure of Rudge, without questioning the cor- 

 rectness of it, but absolutely describes the tivo kinds of fructification repre- 

 sented by Rudge; first, in his specific character, " Jndusiis spicaiis disli- 

 che connatix, tandem liberis pedicellatis ;" and afterwards in the descrip- 

 tion, " Indnsia disticha, coarctata, primum membrana pellucida con- 

 ■nexa, tandem distincta pedice/lata spicam densam disticham subsecundam 

 referential As a further evidence of his being well acquainted with the 

 Trickomanes eleqans, he corrects Willdenow, who, he says, only knew the 

 plant from Rudge's figure, and who particularly described the fertile fronds 

 otherwise than he would have done had he described from the plant itself. 



(H-) 

 ZOOLOGY. 



29- Say's American Entomology. — The first volume of a very handsome 

 work under this title has made its appearance in the United States, from 

 the Philadelphia press. It is perhaps the most splendid work in a large 

 octavo form hitherto published in that country ; and whether we consider 

 the contents, the fineness of the paper, the style of engraving, or the 

 highly respectable manner in which the plates are coloured, it does Ameri- 

 ca infinite credit. The present volume contains 18 plates, in which 41 

 species are figured, of which 34 are first described by Mr Say. 



30. Annals of the Lyceum of Natural History of New York. — The Ly- 

 ceum of Natural History of New York has put forth its first half volume of 

 Transactions, and it gives us much pleasure, in being able to bestow 

 our cordial approbation on this specimen of its meritorious labours, es- 

 pecially, as it is mainly owing to the spirited exertions of a few of its 

 members, who have devoted no small share of time, money, and ta- 

 lent to the cause of Natural History in New York. The present half vo- 

 lume is composed of thirty-five articles, in various departments, connected 

 with the Natural History of North America, illustrated with thirteen well 

 executed plates. 



31. American Fauna. — Dr Harlan is engaged in preparing a Fauna Ame- 

 ricana, the first part of which, containing the MammaJia, is nearly ready 



of examining very many other specimens. All have the involucres separated, as re- 

 presented in our plate, and as represented in the left hand spike of the entire plant 

 in Mr Rudge's representation, and at Fig. 2. of the magnified portion. 



