190 PHYTOGRAPHIC EXPRESSIONS AND ARRANGEMENTS. 



therefore about half that occurring as indigenous in the colony of 

 Victoria, but nearly equal to that of Britain. The genial author 

 did not feel constrained, to adhere for the dichotomous disposal of 

 the orders of plants to any natural system, but adopted for genera 

 and species the Candollean arrangement. The numbering is 

 ■consecutive throughout, therefore perspicuous and facile. His 

 inexpensive book should prove even useful beyond the colony for 

 which it was written, as for instance the vegetation of the southern 

 regions of Victoria very extensively repeats that of Tasmania. 

 As regards the utilisation of Lamarck's analytic method for any 

 large floral region beyond France on the European Continent, I 

 am only acquainted with the first edition of G. Lorinser's 

 " Botanisches Excursions Buch fur die Deutsch-Oesterreichischen 

 Kron-Laender," published in 1854 ; but two more editions were 

 issued, the last in 1871. Much erudition is displayed in this 

 work, destined for use on botanic excursions. The orders are 

 disposed of without any particular adherance to systematic 

 arrangements, but in setting out the genera and species Prof. 

 Lorinser also follows strictly the system of De Candolle ; the 

 numbering is not continued uninterruptedly, the species always 

 following at once the genera in each order. For its objects, this 

 neat and handy book must have proved of great value within the 

 countries for which it is furnished, it being understood that for 

 home-studies larger works were to be consulted variously extant 

 there ; the dichotomy is however not limited to solitary 

 characteristics, and this militates against obtaining quick results; 

 nor are the brief definitions supported by further descriptive 

 notes, for guarding against possible misapprehensions. Cuerie's 

 "Anleitung die Pflanzen des mittlerenund nordlichen Deutschlands 

 zu bestimmen," is another work for which the dichotomy was 

 utilized ; it went from 1823 till 1878 through thirteen editions 

 partly by the later aid of Lueben and Buchenau. 



The most recent work elaborated according to the Lamarckian 

 plan, is the " Flore du Nord de la France et de la Belgique " by 

 Bonnier and De Layens. Here again the sequence of the orders 

 is independent of natural classification, the rigorous adoption of 

 the dichotomy for the " families " being particularly difficult. As 

 no numbering is resorted to, the species could follow in systematic 

 sequence at once after each genus ; in using two pages always 

 together, space is gained for ample schemata ; more than one 

 criterion being generally used for the dichotomic phrases, further 

 descriptive details are dispensed with. But what renders the 

 work unique, is the intercalation of over 2,000 small figures of 

 single organs, for purposes of distinction, such as are in each 

 case most decisive, so that a mere glance at the figures will often 

 render it unnecessary to look at the text at all. 



