41G SYNGENEsiA AEQUALis. Ageratum. 



four or five iiiclies long. Flowers very numerous, rather 

 small, of a pale purple, terminating the plant in numerous, 

 sub-globular unibcllets, the whole forming a large, irregular, 

 compound corymb. Calyx, scales lanceolate, pointed. Seeds 

 black, Avith hispid angles. Pappus of five scales, with 

 broader, cordate, serrate bases, ending in long subulate 

 points, resembling the partial calyx of the orders Polygamia 

 Segregata, Receptacle naked, hemispheric. 



2. A. aquaticiim. Roxh. 



Annual. Leaves opposite, lanceolate, serrate. Flowers suh- 

 umbelled. Stigma clubbed, twice the length of the florets. 



Beng. Bwra keswtee. 



A native of the borders of rivulets among the Circar moun- 

 tains. Flowering time the cold season. 



Stem annual, somewhat succulent, below resting on the 

 ground, above erect, round, very slightly hairy, from two to 

 four feet long. Leaves opposite, decussated, petioled, hori- 

 zontal, broad-lanceolate, serrate, smooth, somewhat succulent; 

 from four to six inches long. Flowers terminal, forming an 

 irregular, thin umbel, white. Cahjx from twenty to thirty- 

 leaved, equal. Coro/, outside of the mouth woolly. Stamens 

 within the tube. Stigmas twice as long as the corollets, 

 erect, clubbed, white, they are a good and conspicuous mark. 

 Seeds crowned with a glandular margin, from which issue 

 three, four or five headed, pedicelled glands. Receptacle 

 naked. 



JVote. By the structure of the stigmas, they being when 

 full grown, far above the anthers, and the flowers all erect, 

 it might be concluded the pollen could not reach them, but 

 1 could observe clearly that the anthers are ripe, and burst 

 while the stigmas are of an equal length with and closely em- 

 braced by them, the stigmas continue to grow and carry with 

 them a large portion of the dust; this wonderful economy I 

 have frequently observed in a number of plants which at least 

 helps to invalidate one of the old anti-sexualists' arguments. 



