434 NATURAL HISTORY OF PLANTS. 



The families witL which Rosacea are also connected, though less 

 nearly, are as follows : — 



1. RammculacecB ; whose perigynous types, such as Pceonia and 

 Crossosoma, only differ from most Rosacea in the absence of stipules 

 and the presence of albumen. 



2. RhamnacecB ; whose affinities with the RyreoB have long been 

 recognised by very many authors. 



3. Ternstrcemiacea and Legnotidea ; of which the Quillajece, such 

 as Euphronia and Eucryplda, have more than one feature, notably in 

 the winged compressed albuminous seeds, the plurilocular ovary, and 

 the arrangement of the androceum, especially if we compare these 

 genera with Bonnetiece, Anisophyllea, Macarisia, &c. 



4. Finally, Rutacece and ^imaruhece ; to which Rosacea approach 

 very nearly by the curious genus Riglostachjs^ not to mention the 

 close affinities borne to Biebersteiniece by the Neuradea, so often 

 included in the order 'Rosacea. 



The geographical distribution of Rosacea extends over a very wide 

 area. We find representatives of this order from Lapland to the 

 southernmost points of South America, in every country of the 

 World, or nearly so. The Chrysohalanea alone are exclusively 

 plants of warm climates. The Qtiillajea belong to more tem- 

 perate regions ; they are found from New Mexico to Tasmania ; but, 

 except one species indigenous to this last land and Australia, all are 

 American. The other series have representatives in both Worlds ; 

 and of the sixty-five genera we have retained, nineteen belong 

 exclusively to the Old World, twenty-three to the New; so that 

 the other twenty-three are common to both. There are twenty-two 

 genera, with only one or very few species each ; viz., Kerria, R/iodo- 

 fypos, and Stephanandra, found only in China or Japan; Canotia, 

 Neviusia, Nuttallia, Vauquelinia, Pterostemon, Lindlcya, Purshia, Cha- 

 mabatia, Coleoyyne, Fallugia, each with one species, from North 

 America ; Straiivasia, Maddenia, Parastcmon, and Prinsepia, each as 

 yet, also only represented by a single species, from India and the 

 Indian Archipelago : so too the single species of the genus Brayera 



' "Inter Simanibeas inrenitur, mullix no/is ad Wnsaceas aceetiit." (B. II., G^h., 605.) 



