360 COMPOSITAE. 
BaccHaris. Groundsel Tree. 
(Family Compositae). 
Openly bushy soft-wooded 
shrubs with resin-passages in the 
.wood, etc.: tardily deciduous. 
Twigs slender, about 8-ridged, for 
a long time green: pith small, 
crenulate, pale, continuous. Buds 
rather small, solitary, sessile, 
nearly globose, with about 4 ex- 
posed scales, all or all but the 
outermost encased in hardened 
greenish resin. lLeaf-scars alter- 
nate, small, angularly crescent- 
shaped, slightly raised, decurrent 
in ridges from the angles: bun- 
dle-traces 3: stipule-scars lacking. 
Inflorescence or its vestiges often 
present as rather small composite 
heads or their involucres. 
Winter-characters of Baccharis 
halimifolia are indicated by 
Schneider, f. 77. 
Twigs minutely puberulent, or glabrescent. B. halimifolia. 
Winter-character references to other, rather suffruticose, 
Compositae:—Artemisia camphorata and A. tridentata. Schnei- 
der, f. 102. Aster (or Amphirdphis) albescens. Schneider, 
f. 102. Chrysanthemum indicum. Schneider, f. 77. Gutier- 
rezia euthamiae. Schneider, f. 77. Iva frutescens. Schnei- 
der, f. 98. 
