374 DESCRIPTION OF ASTERS; MACROPHYLLI 
Middle caulines quite characteristic and numerous, elliptic or 
oval, with truncate, rounded or finally tapered base, all incurved 
into a distinct narrow acumination, serrulate, and wing- petioled ; 
the two ends of the leaf nearly alike. eae RE 
Upper caulines oblong-lanceolate, tapering to the sessile base. 
Axiles similar but narrower ; as are the rameals when developed. 
nflorescence a single terminal tuft of long erect pedicels ; or in 
well-developed plants, an irregularly branched paniculate corymb, 
6 in. across or more, with scattered short branches from the lower 
axils. 
Heads 47, in. high, about 1 in. broad. Involucre turbinate 
with broad base, triseriate-chequered with conspicuous dark-green 
tips, otherwise pale or silvery. 
Bracts passing from ovate-oblong and acute to narrow-oblong 
and obtuse, finely downy with glands intermixed, the outer woolly 
and convex, the middle and inner ones partly scarious and flat, 
white or gray margined and often with additional red edge. 
