40 Bibliographical Notices. 



maturo superne nudus, basi collari seu -nepucpaiu) palearum per- 

 sistentium cinctus. 

 Sj). 1. P./uscafa, Webb. A nt hemis fuscata, Brot. 

 At page 48 the Ulcx provincialis , Loisel, is referred to U. ausiralis 

 C'lementc, as in the opinion of our author the plants are identical, 

 and therefore the older, although neglected name conferred by Don 

 Simon Clenuntc must be employed. 



We now come to the magnificent work placed second at the head 

 of this article, of which we believe that the first part alone has as yet 

 been published. It is in folio, and is intended to form a volume con- 

 taining between 50 and 60 uncoloured plates, with accompanying 

 descriptive letter-press. The present number contains 8 pages of 

 letter- press and 5 plates, representing Holcus ccespitosus, Boiss. ; 

 Artemisia Granatensis, Boiss. ; Cytisus tribracteolatus, Webb; Adeno- 

 carpus Boissieri, Webb ; and Salsola genistoides, Poir. The latter 

 is a very remarkable plant, having all the appearance in habit, &c. of 

 a Genista combined with the characters of a Salsola. 



The plates appear to us to be of the highest character, being clearly 

 and beautifully executed with very numerous illustrative dissections, 

 and (as far as we can judge without having the plants before us) 

 they are highly characteristic. We hope to have an opportunity of 

 noticing the successive numbers of this work as they appear, and 

 cannot but recommend it strongly to our botanical readers. 



On the Organs of Secretion in Plants. A prize question crowned in 

 1836, by the Royal Society of Sciences of Gottingen. By Dr. 

 F. J. F. Meyen. With Nine Plates. Berlin, 1837. 



This Memoir contains a vast number of excellent observations on 

 those organs in plants which possess the property of secreting any 

 substance : a number of admirable drawings illustrate the text. 

 The Royal Society of Gottingen required " an accurate representa- 

 tion of the secreting organs in vegetables with reference to the 

 structure of the secreting parts, and of the effects which secretion 

 in general produces on the process of vegetation." The organs 

 which have the power of secreting have been arranged according to 

 the secretions produced; and the author commences with those 

 which secrete air ; he distinguishes between the cavities originating 

 from laceration ; and those air cavities or canals formed by the sepa- 

 ration of the rows of cells, which may be regarded as widened 

 intercellular passages, frequently have septa consisting of a stellate 

 cellular tissue, and allow therefore of free transmission. He then 



