supplementary^ to Encyc. of Plants and Hart, Brit. 37 



view of rendering service to the colony, by the introduction of 

 useful plants. To Europe he has, with the greatest liberality, 

 communicated many rare South African plants, and has enriched 

 our gardens with several new or little known species." The 

 number of the Botanical Magazine for December, 1835, com- 

 pletes vol. 62. of that work. Dr. Hooker has inscribed the 

 volume to Baron Ludwig. 



A Key to Structural, Physiological, and Systematic Botany, for 

 the Use of Classes. By John Lindley, Ph. D. F.R.S. L.S. and 

 G.S., Professor of Botany in the University of London, and in 

 the Royal Institution of Great Britain. — This work, recently 

 published, is a more matured edition of both the author's Outline 

 of the First Principles of Botany, and of his Nixiis Plantarum,hoih. 

 included in this one, the Key. The Outline, published in 1830, 

 has been previously commended in this Magazine ; and it may be 

 stated of that part of the Key which embraces the same subjects 

 as that work, namely, the structure and physiology of plants, 

 that information so succinct and comprehensive on them is not 

 to be obtained in any other work extant. The Nixus Plantarum 

 is written in Latin; it was published in 1833; its subject and 

 office are noticed in Vol. IX. p. 608, 609. : that part of the Key 

 which embraces the same subject is written in English, with the 

 exception of the denominative botanic terms. The author's ob- 

 ject, in both the Nixus and the kindred part of the Key, is, to 

 consociate congruously the natural orders into groups, inter- 

 mediate in the rank of comprehensiveness between the orders 

 themselves and those few groups of much higher rank, as, dicoty- 

 ledoneae or exogenae dichlamydeae thalamiflorae, Hort, Brit., 

 p. 492. 495.; dicotyledoneae dichiamydeas calyciflorae, Hort. Brit., 

 p. 492. 508. ; dicotyledoneae dichlamydeae corolliflorae, Hort. 

 Brit., p. 492. 523. ; dicotyledoneae monochlamydese, Hort. Brit., 

 p. 492. 530. ; monocotyledonese, Ho7't. Brit., 492. 535. ; in each 

 of which rather many orders were included, and these less con- 

 gruously associated among themselves than was desirable. His 

 proposed mode of effecting this object is, by consociating orders 

 by characters of common agreement into groups, named al- 

 liances ; and alliances into groups, named groups. 



In application to the species of plants which may be noted on 

 in the floricultural and botanical notices anticipated to be given in 

 the Twelfth Volume of this Magazine, it is purposed to cite, ad- 

 ditionally to the name of the natural orders to which they may 

 belong, the names of the alliances, groups, and higher groups, to 

 which the cited orders may belong. The fulfilling of this pur- 

 pose will have, at least, the effect of placing these botanic terms in 

 the way of the cognisance of readers of the notices, and, in some 

 cases, may have the better effect of contributing to elucidate the 

 end of the invention and first application of them. Relative to 



D 3 



