Aveust 16, 1906] MANUAL OF THE PHILIPPINE COMPOSITAE 109 
paniculate or fascicled. Flowers yellow or purple, the pist- 
illate outer flowers numerous, filiform, 2 to 5-toothed; disk 
flowers fewer, tubular, 5-toothed; involucre. ovoid, its bracts 
imbrieate, unequal, linear, herbaceous; receptacle flat, naked 
or somewhat hirsute; anther bases sagittate and slenderly 
tailed; achenes small, subterete or angled; pappus slender, 
soft, caducous. 
Species 60; all of the old world, especially abundant 
in British India. 
Suffrutescent and perennial coarse herbs. 
Leaves glabrous; heads upon slender 1 to 2 cm. long 
peduncles. 
1. B. laxiflora. 
Leaves glabrous above and sparsely pubescent beneath; 
peduneles shorter. 
2. B. appendiculata. 
Leaves pubescent on both sides; heads subsessily 
clustered. 
Involucral bracts subglabrous. 
3. B. densiflora. 
Involucral bracts densely pubescent. 
4. B. balsamifera. 
Herbaceous, annuals and biennials. 
Peduncles glandular pubescent. 
5. B. membranacea. 
Peduncles not glandular. 
Involucral bracts glabrous. 
Leaves lyrately lobed. 
6. B. laciniata. 
Leaves toothed. 
7. B. virens. 
Leaves subentire. 
8. B. virens minor. 
Involucral bracts pubescent. 
Flowers purplish. 
