546 



ARBORETUM ET FRUTICETUM BRITANNICUM. 



Styles penciled. Pap- 

 Achenia somewhat beaked. Pappus of 



iSene^cio Lessing. Receptacle naked, or alveolate. 



pus pilose, caducous. 

 MuTi's7^ Cav. Receptacle naked. 



many series, feathery. 



With the exception of ^accharis, there is scarcely a plant belonging to 

 the order CompositEe which is truly ligneous, and at the same time hardy in 

 British gardens, and sufficiently bulky for a general arboretum. Where an 

 arboretum is planted on a lawn, and where it is not intended to cultivate the 

 soil about the roots of the plants, there is not a single genus in this order, with 

 the exception of that mentioned, wliich could with propriety be introduced. 

 Even the common southernwood, if not planted in dug soil or on rockwork, 

 would soon become stunted, and would ultimately die off. Nevertheless, in a 

 technical enumeration of trees and shrubs, these species could not be omitted. 



Genus I. 



L 



ST^HELPNJ Lessing. 



The St^helina 

 iEqualis. 



Ait. Hort. Kew 



Lin. St/st. Syngenesis 



eJ. 2., vol. 4. p. 512. 



Jdeniification. Lessing Synops. Gen. Compos., p. 5, 

 Synonyme. Stfeheline, Fr. and Gcr. 

 Derivation. So named in honoxxx ot John Henry Stcchelin, and his son Benedict, Sv/iss botanists 

 and physicians. 



Gen, Char.y Sfc. Heads homogamous, equal-flowered. Involucrum cylindrical, 

 the scales imbricated and adpressed. Receptacle flat, paleaceous ; the 

 pales narrow, persistent, hardly concrete at the base. Corolla 5-cleft, re 

 gular. Filament glabrous. Anthers appendiculate at top, bisetose at the 

 base: the tails more or less bearded. Style bearded on the thickened part 

 Stigmas concrete at base, and free at apex, obtuse. Fntit oblong, areolate 

 at apex. Pappus in one series, the hairs combined at the base into i or 6 

 bundles. {G.JDon.) 



Leaves simple, alternate, exstipulate, evergreen ; linear, hoary or silky 

 beneath Flowers in terminal spikes, usually naked. Subshrubs, evei- 

 green ; South of Europe , of easy culture in dry soil, and propagated b}: 

 cuttings or seeds. 



. 1. S. DU^RIA L. The doubtful, or Rosemary- 

 leaved, Staehelina. 



Jdeniification. Lin. Sp., 117G. ; Less. Syn. Gen. Compos., p. .5.; 



Willd. Sp. PI., 3. p. 1783. 

 Synonyme. ^. rosmarinilblia Cass., according to Less. Syn. Gen. 



Compos., p. 5. 

 Engravings. Ger. Prov., p. 190. t. 6.; Lam. 111., 6GG. f. 4. ; and 



ourjig. 1017. 



Spec. Char., S^c. Leaves sessile, linear, finely 



toothed, tomentose beneath. Inner bracteas 



of the involucre lanceolate, elongate. (Willd.) 



An evergreen undershrub. South of Europe. 

 . Height 2 ft. to 3 it. Cultivated in 1640. Flowers 



purple, fragrant ; June and July. 



Genus II. 



J5A''CCHARIS R. Br. The Baccharis, or Ploughmas's Spiken.^RL^ 

 Lin, Syst. Syngenesia Superflua. I 



Identification. Less. Syn. Gen. Compos., p. 204.; Ait. Hort. Kew., ed. 2, vol 5, p. 26. 

 Synmiymes. Bacchante, i^r. .: Baccharis, Gcr. 



