394 GEOGRAPHICAL BOTANY. 



the flora of Mexico (Bullet, de FAcad. de Bruxelles, 

 1844, vol. xi, part 2, pp. 61, 185, 319; 1845, vol. xii, 

 p. 129) : they contain 74 Labiate, with the new genus 

 Dekinia, 39 Verbenaceee, 9 Cordiacese, 30 Boraginacese, 

 and 63 Solanaceae. The Ferns (170 sp.) and Lycopo- 

 diacea? (12 sp.) are treated of by them in detail (Memoires 

 de FAcad. de Bruxelles, 1842), and are illustrated by 

 copper-plates. Kunze has described the Ferns and the 

 allied families collected by Leibold in Mexico (128 sp.) 

 (Linnaea, 1844, pp. 303-52). V. SchlechtendaFs conti- 

 nuation of his ' Contributions to the Flora of Mexico' 

 contain the Sapindaceae, a new Dioscoreaceous plant, 

 and Hydrotania (1. c. pp. 48, 112, 224). Bateman has 

 published a splendid illustrated work on the Orchidaceae 

 of Guatemala and Mexico, with 40 plates (Orchidaceae of 

 Guatemala arid Mexico. London, 1843, imp. fol.) 



Galeotti, in his ' Memoir on the Mexican Ferns/ has 

 also investigated their distribution in the regions which 

 he has assumed, and commenced a similar work in con- 

 nexion with Richard, in which the Orchidacese of Mexico, 

 where, according to Richard's judgment, the forms of 

 this family are more abundant than in any other country 

 in the world, are treated monographically, from a collec- 

 tion of 500 species (i. e. \ of all that are known), and the 

 geographical distribution of which is given (Comptes ren- 

 dus, vol. xviii, pp. 497-503) in a preliminary paper. The 

 regions assumed by Galeotti in these two papers include 

 the greater part of Mexico, without, however, as was the 

 case with Liebmann's ' Characteristics of Oribaza,' their 

 being supported by a sufficient number of special investi- 

 gations. We cannot judge of the value of Galeotti's 

 botanical division of the country until, as it is undoubt- 

 edly his intention to do, a special work is published on 

 the botanico-geographical relations of all the Mexican 

 families of plants. The altitudes given do not always 

 agree with those of Liebmann, nay, in some cases, they 

 do not agree with each other : how far this is due to 

 inaccurate observation, and how far to local variation in 



