~ Eupatorium.| XLILL. COMPOSITE. 927 
ornone. Style-branches truncate. Pappus of fine hairs, Genera:—19. TUssILAGo ; 
_ 20. Senecto; 21. Doronicum. 
7, CYNAROIDEH. Florets all tubular, rarely yellow. Style entire, or with short 
branches, usually swollen below the end. Leaves and involucres usually prickly. 
Genera :—22. ARcTIUM ; ‘23. SHRRATULA; 24. SaussurEA; 25, Carpuus; 26, Ono- 
PORDON; 27. CARLINA; 28. CENTAUREA. 
+ 10. CrcHORIACEH or LiguLats. {Florets alljligulate, Genera :—29. TRaAGOPOGON ; 
36. Hetminruia; 3]. Picris; 32. LEoNropon; 33. Hypocua@ris; 34, Lactuca; 
35. Soncuus ; 36. Taraxacum; 37. CrEepis; 38. Hieracium ; 39. CrcHorium; 43. 
ARBNOSERIS; 41, LAPSANA. 
Among the numerous exotic genera familiar to us by long or general cul-. 
tivation, may be mentioned the Marigold (Calendula), the Sunflower and 
Jerusalem Artichoke (Helianthus), the French and African Marigolds — 
_ (Peruvian species of Tagetes),several Hverlastings (Helichrysum, and other 
Cape and Australian genera), several species of Coreopsis, Rudbeckia, 
Zinnia, Dahlia, Ageratum, etc., all belonging to Corymbifere; the Arti- 
choke and Cardoon (Cynara), and the Globe-Thistle (Echinops), belonging 
to Cynaroidee, and Scorzonera, and Catananche among Ligulate. 
i. EUPATORIUM. EUPATORY. 
Herbs (or in exotic species, shrubs), with leaves mostly opposite, and 
purplish or white flowers in terminal corymbs. Receptacles without scales. 
Florets all tubular and equal. Styles much exserted, with long, thickened 
or club-shaped branches. Achenes angular or striated, with a pappus of 
simple hairs. 
A vast genus, chiefly American, with a few Asiatic species, one of which 
‘is also our European one, the only British Composite with opposite leaves, 
and florets not yellow. 
1, E. cannabinum, Linn. (fig. 495). Common Eupatory, Hemp Agri- 
mony.—Rootstock perennial, stems erect, 3 or 4 feet high. Leaves 3 to 5 
inches long, slightly downy, divided into 3 broadly lanceolate, coarsely 
toothed lobes, sometimes again slightly Jobed, a few upper leaves occasion- 
ally simple and alternate. JF'lower-heads numerous, in compact terminal 
corymbs, of a pale reddish purple. Involucres cylindrical, of very few 
unequal bracts, and usually containing 5 florets. 
~ On banks and bushy places near water, throughout Europe and central 
and Russian Asia, except the extreme north. Extends all over Britain. 
Fl. summer. 
II. ASTER. ASTER. 
Herbs, usually erect, with alternate, entire or toothed leaves, narrow 
linear in the British species. Flower-heads in terminal corymbs. Invo- 
lucral bracts imbricated in several rows. Outer florets not very numerous, 
forming a purple or white spreading ray, but sometimes wanting, those of 
the disk tubular, 5-toothed and yellow. Branches of the style somewhat 
flattened and pointed. Anthers without tails. Achenes flattened with a 
pappus of many hairs. 
A very numerous North American genus, with a few species spread over 
northern Asia, Europe, and some other parts of the world. Several of the 
North American ones are known among the autumnal plants in our flower- 
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