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AGERATUM CCELESTINUM. BLUE-FLOWERED 
AGERATUM. 
SET AE TEE SE GEE TE TE SE RE EE Re HE IEE 
Clafs and Order. 
SYNGENESIA Potycamia /EQUALIS, 
Generic Charader. 
Receptaculum nudum. Pappus paleis 5, fubariftatis, nunc coalitis 
obfoletifve. Ca/. oblongus, duplici foliolorum fubzqualium ferie. 
Cor. 4—5-fide. 
Specific Character. 
AGERATUM celefinum s hifpidulum, foliis ovato-acuminatis 
triplinerviis dentato-ferratis integerrimifque, pappo mono- . 
_ phyllo obtufe dentato. — 
According to the ufual generic charafter of Aczratum, the 
pappus of the feed fhould confift of four or five fubulate palez ; 
but in our plant the pappus is {mall and cup-like, with five 
obtufe, nearly obfolete teeth, the /imb of the corolla is five- 
cleft and rolled back: /igmas very long, club-fhaped, ereé. 
In habit, and in every other refpeét, it correfponds fo exafly 
with AGERaTuM, that we have thought it right to continue it 
with that genus, notwithftanding the remarkable difference of 
the pappus. This part, indeed, appears to be liable to vary in 
the different fpecies of this genus. In the Bankfian Herbarium 
we obferve there is one, in which the pale of the pappus are 
nearly obfolete, but not united as in this. 
The native country of this lively herbaceous perennial is 
unknown to us. It was firft obferved in a garden at Briftol, 
but its origin could not be learnt. Hitherto it has been pre- 
ferved through the winter in the greenhoufe ; but when planted 
out in the open ground, it feemed to thrive beft where it was 
not much expofed to the fun, 
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