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,MR. G. BENTHAM ON THE MIMOSE^. 



H 

 f 



Genera or Subgenera 



America. 



NEPTXTiaA 



4 sp. (besides the identical one), 2 tropical 

 and 2 northern extratropicaL 



Desmanthus 



Mimosa (Rubicaules), 



9 sp. 



wi 



Leuc^jta 



Acacia (Gummifetls:) 



SimiMIBRACTEAT^. 



Medibracteat^ . . 



tropical weeds, 7 northern extratropical 

 and subtropical. 



About 15 species, spread over tropical Ame- 

 rica, the representative ones and their 

 nearest allies chiefly from the West 

 Indies and Central America. The whole 

 genus, very abundant within and near 

 the tropics, containing about 270 Ame- 

 rican sp., all (except the above 15 and 

 the identical M, aspemta) belonging to 

 groups unrepresented in the Old World. 



8 sp., all western tropical, or northern 



subtropical. 



9 sp., aU western or West Indian. 



Basibracteat^. , 



2 sp., Mexican-Texan, resembling some of 

 the Old-World species, but scarcely 

 representative. 





an 



Acacia (Vulgakes) 



aU 



42 sp. About 24 Brazilian or Columbian, 



area 



with an 

 ' western 



extended 



Caujajtdra 



extratropical, north or south, with 

 more limited areas ; both groups occa- 

 sionally representative of, or nearly 

 allied to Old-World species ; the western 

 and the Mexican ones the most distinct. 

 The genus contains also 2 sp. belonging to 

 a group (Filicinse) not spreading very 

 far from Central America. 



Nearly 100 sp., chiefly tropical, scarcely 

 separable into distinct groups, many of 

 them very variable, and some of rather 

 extended areas, 2 or 3 found beyond 

 the tropics north or south. 



PlTHECOLOBIITM (SaMA- 



kea) ST7BAia:icrLAX-fi. 



I. Brazilian with 1 western," the section 

 containing also 3 other groups (18 spe- 

 cies) purely American, and the genus 

 including 5 American sections with 

 about 60 species. 



3 sp. 1 from the Indian Peninsula, too di- 

 tinct to be classed as representative of 

 any American species ; 2 Australian, 

 still more distinct. None from Africa 

 or the Mascarene Islands (except the 

 identical one). 



1 sp., Madagascar, very distinct from the 

 rest of the genus. None in Asia, Africa, 



or Australia, except as 

 nists. 



modern colo- 





8 sp. The two representative ones Asiatic, 

 the other 6 Mascarene or east tropical 

 African ; none from Australia or west 

 tropical Africa, and no others of the 

 genus in the Old World, except the 

 identical M. asperata. 



1 sp. South Pacific Islands ; none in Asia, 

 Africa, or Australia. 



4 sp., all African. 1 west tropical, and re-^ 

 presentative of an American one; 3 

 south extratropical. 



About 40 sp. 27 or 28 African, of which 2 

 northern extratropical, 9 southern ex- 

 tratropical, 16 or 17 tropical, 1 extend- 

 ing over east tropical Africa and west 

 tropical Asia ; 8 tropical Asiatic, 3 tro- 

 pical Australian. No Mascarene sp. 



3 sp. 2 tropical African, 1 East Indian Pe- 

 ninsula, all well marked. No Mascarene 

 or Australian. 



24 sp. 3 spread over tropical Africa and 

 Asia, 7 confined to tropical Asia, 9 to 

 tropical Africa, 4 to South Africa, 1 

 Mascarene. No Australian. 



The genus contains also nearly 300 sp. be- 

 longing to 3 Australian sections or 

 groups, of which the PhyUodineae alone 

 are represented by 5 Polynesian and 1 

 Mascarene sp. 



2 from Khasia, 1 from the Indian 

 Peninsula, 1 (not certain as to the 

 genus) from Ceylon, 1 from Madagascar, 

 all of restricted area and specifically 

 very distinct, although more or less 

 allied to American forms. None in 

 Africa or Australia. 



5 sp. 



4 sp. 



Australia 



Archipelago, 1 from the Indian Penin- 

 sula and Ceylon, 1 from Madagascar, 

 1 from tropical Africa, aU specifically 

 very distinct, but allied to the American 

 ones. No other Old-World group of 

 the same section, but one Old-World 

 distinct section of the genus, with^ 22 

 species, of which 3 tropical Austrahan, 

 the others tropical Asiatic, chiefly from 

 the Archipelago, some with a wide East- 

 Indian range. No Mascarene or African 

 snecies of this Old-World section. 



