COMPOSITE. 219 



bracts obtuse, sticky. Florets J4 inch. Achenes sticky. 

 t. 153, a. achene ; p. section across a, showing shape. 



On the plateaus but commoner at lower levels. 



Gen. Dist, Throughout India and all tropical countries. 



AGERATUM. f.b.i. 78 viii. 



Herbs with opposite leaves, florets all equal and 



tubular, blue or white never orange, anthers not cleft at 



the base, stylar arms obtuse, achenes five-angled with 



five scales for a pappus. 



Species about 16 probably all American in origin but now 

 distributed throughout the tropics. 



Floss flower, Maudlin ; Fr. Agerate ; Ger. Leberbalsam. 



Ageratum conyzoidcs Linn. ; F.B.I, iii 243, VIII ; a 

 Floss Flower; remarkable for the long protruding purple 

 styles. Stem 3 to 5 feet, well branched, terete, sparingly 

 hairy. Leaves opposite, stalked, ovate-crenate, about 

 2 by 1% inches in corymbs, terminal on the stem and 

 upper branches, with linear bracts at the forkings ; ulti- 

 mate peduncles slender ^ to ^ inch. Involucral bracts 

 ^ to ^ inch, aristate. Florets purple, stylar branches 

 long, purple. Achenes black, J^ inch, with a rim of five 

 to ten pointed scales about as long. t. 154. 



Very common in masses by road-sides in Ootacamund and 

 Kodaikanal, e.g., just below the bund. Distributed throughout 

 India and in all warm countries. Fyson 2850. Bourne 2688. 



EUPATORIUM. F.B.I. 78 IX. 



Herbs or shrubs with opposite (or alternate) leaves 

 and terminal corymbs of flower-heads characterised by 

 the florets all equal and tubular, stylar arms long and 

 obtuse, achene five-angled or five-ribbed, and pappus of 

 a single circle of long scabrid hairs (distinction from 

 AGERATUM). 



