8 



LXAFLBTS. 



Meanwhile Mr. Small, in his Flora of the Southeastern States, 

 has seconded my restoration of Conoclinium and also admitted 

 Osmia. It is therefore opportune to present suggestions of the 

 excellent titles to generic rank held by other assemblages of 

 species of so-called Eupatorium. 



Ktestenia (Keck. Blem. i. 81) has for its most historic and 

 representative species two herbaceous plants known well in 

 pre-Linnsean days, one of which Linnaeus called Eupatorium 

 aromaticum and the other Ageratum alfissimum better known to 

 us as Eupatorium ageratoides, a name assigned it by the younger 

 Linnaeus. 



These two plants, and with them a host of their congeners, 

 are so unlike true Eupatorium and at the same time so like 

 Ageratum in foliage, inflorescence, uniserial involucre, and even 

 as to flowers and fruits, that nothing but the fine-bristly rather 

 than paleaceous pappus could have kept them apart from the 

 genus last named, where, as already noted, Linnaeus did actually 

 place the first species. They differ from Eupatorium by a set of 

 characters exactly corresponding to those by which Erigeron is 

 held separate from Aster. 



One must needs assume the Atlantic North American species 

 just mentioned to be the proper type of Kyestenia. They are 

 herbaceous perennials with opposite leaves and a corymbose 

 inflorescence; their thin almost uniserial involucral bracts 

 notably pointed. 



I subjoin a list of representative species, all belonging to the 

 flora of the United States, using the specific names at present in 

 vogue for each under Eupatorium, save only in the case of E. 

 ageratoides which alone has a specific name older than that in 

 common use ; and I give in parenthesis the place of publication 

 of each as an Eupatorium. 



Ktkstbnia aeomatica (Linn.Sp.839),viBUENiFOLiA (Greene, 

 Pitt. iv. 376), ANGUSTATA (Greene, 1. c. 377), nbmoealis 

 (Greene, 1. c. 378), Teacyi (Greene,!, c), aboeigikum (Greene, 

 1. c. 377), BOBEALis (Greene, Rhodora, iii. 83), ceanothipolia 

 (Muhl, in Willd, Sp. iii. 1755), altissima (Linn. Sp. 839 under 

 Ageratum; Eup. ageratoides, Linn. t. Suppl. 355), incaenata 

 (Walt. Carol. 300), jucunda (Greene, Pitt. iii. 180), mei-is- 



