42 PLANTS OF BERMUDA. 



TI. BACCHARIS. 



Shruhhy })lants, often resinous or viscid. Heads discoid, many -flowered ; 

 male and female florets on separate plants ; involucre oblong, imbricate ^ 

 tvith Icathcrij scales, receptacle nahed. 



1. B. hcterophylla ? (Dogbush). An erect, bushy shrub, three to 

 six feet high, with smooth, angular branches ; leaves leathery, two 

 to three inches long, obovate or oblanceolate entire, or with one or 

 few pairs of angular teeth above the middle, and an entire, wedge- 

 shaped base, smooth and shining above, dotted beneath with minute 

 scales. Heads in terminal panicles ; pappus simple, slender, whit- 

 ish. Habitat, marshes, very common. Heads brownish-white, 

 one-third inch ; October to March. 



c. Senecionidee. Herbs or shrubs with opposite or alternate leaves. 

 Heads usually radiate, style arms linear, truncate at apex or bearing a 

 hispid appendage. 



Vir. BORRICHIA. 



Seaside shrubs, with opjjosite, Uathery leaves; heads solitary, radiate ; 

 rays female, fertile ; involucre imbricate, the outer row leaf y ; receptacle 

 flat, with persistent, icoody scales. 



1. B. arborescens (Seaside Marigold). An erect, brittle, succulent 

 shrub, f!nrcc to four feet high ; leaves three to four inches, lanceo- 

 late, fleshy, quite entire, sharp -pointed, tapering and embracing the 

 stem with their united base, either smooth and shining or white 

 with silvery down (the two forms sometimes occurring on the same 

 plant) ; rays about fifteen, achcnia four-angular, with a four- 

 toothed crown. Distribution, Bahamas and Turks Islands ; habitat, 

 barren seaside rocks, common. Heads bright yellow, one and a 

 half inches in diameter ; May to September. 



VIII. WEDELIA. 



Herbs or shrubs, tvith opposite leaves ; heads radiate in cymes, rays 

 female, fertile ; dish flohts barren ; involucre two-seriate, scales leafy. 



1 . W. perfoliata. A coarse, erect, annual plant, with angular 

 stems ; petioles meeting at the base ; leaves large, rhomboid, 

 coarsely lobcd and toothed ; cymes terminal ; outer bracts five to 

 eight, broad, leafy and spreading, inner twice as many, embracing 

 the fertile llorets ; achenia ovate, smooth. Distribution, Mexico ; 

 habitat, iilantations, &c., rather rare. Heads one and a half inches 

 in diameter, yellow ; April to July. 



IX. rARTHEXIUM. 



Annual herbs, with alternate leaves ; ray -florets five to six in number^ 

 female and fertile, somewhat strap-shaped ; dish florets tubular, numerous, 

 barren ; involucre two-seriafe. 



1. P. hyaferophorus. An annual, erect herb, one to two feet high ; 

 stem somewhat hoary, grooved; lower leaves twice pinnatifid, 



