154 DESCRIPTION OF ASTER; DIVARICATI 
heads really small, their id ae magnitude due to the great 
length of the rays, each ray 4 or $ in. 
Bracts pale, uniformly narrow and long, with conspicuous thin 
tip only slightly enlarged and 
thickened, the margins tan- 
gled-ciliate, and the scarious 
UE ae and 4 to - 16 
brown, narrow, deep-lobed, 
tapering into the thread-like 
Astep fragrans stalk. ' 
Eu di Flowers often of a delicate 
j and delicious fragrance when 
fully open, changing as soon as dry to the different fragrance of 
sandalwood, still perceptible even after 3 years in the herbarium. 
Neither of these fragrances is wholly peculiar however to this spe- 
cies ; the sandalwood fragrance is nearly as well marked in many 
of the Divaricati, and the former, the fragrance in flower, seems 
sporadic in several species, as occasional A. divaricatus, A. tene- 
brosus, A, sociabilis and perhaps others. A somewhat different 
fragrance is that of the opening disk-flowers in A. Claytoni, A. 
ardens, etc., present also in many of the Macrophyth. The aro- 
matic odor so widespread in the Macrophylli is wholly different 
again, and is due to the glands. See also 
Distinguished, among other characters, from A. divaricatus L. 
by bracts with broader and whiter scarious margins ; inflorescence 
less divaricated, more a single mass; leaf-bases more abrupt, 
truncate, chiefly with but shallow recurvate sinus. 
