470 TRANS. OF THE ACAD. OF SCIENCE. 
mens I find the inflorescence more spreading, and with some 
what larger heads, so ~~ thus the transition to the following 
varieties seems to be 
Var. 8 is 1-8 feet heh, and stouter, and bears its larger 
heads in an almost umbel-shaped, more compact pan nicle ; 
heads 5-6 lines in diameter, consisting of 50-90 flowers, each 
of which is 13-2 lines long; seeds 0.22—0.25 line long, slender, 
their naaie being equal to 3 diameters. The inflorescence 
is sometimes looser and more compound, ali a transition 
to the = 
very — a et plant, with a — 
tall, pene inclined and even decumbent stem, which is said 
to become 4 feet long; Serie imearadiy compressed, cae 
described by Elliott as gladiate, 3-6 lines wide; panicle 
spreading, 8-12 or 15 tech long and about as wide, with 
distant, sometimes one-sided (usually called sessile) heads, i. e. 
heads from the base of which a long axillary peduncle pee gs, 
which bears a second head that often behaves in the s 
manner. So far both forms of this variety agree, but in aioe 
and are composed of 30 or 40 to 70 or 80 flowers; flowers, i. e. 
calyx, 2-24 lines long, sepals _— equal in length, and exte- 
rior and interior r ones not more different in structure than is 
co 
- 
fare 
23 2 
° 
=] 
et 
& 
' 
as angular dag 
shaped, and at matariy ‘indishobanks the interior ones much 
shorter, and more or less membranaceous; seeds ovate or 
almost globose-ovate, obtuse, very abruptly or sometimes 
scarcely apiculate, 0.20—0.23 line long, the length being equal 
to 11 or less than 2 diameters. 
2. J. BouanDERI, n. sp.: — a ultra) gra- 
cilibus rectis compressis ; foliorum teretiusculorum striato- 
rum vaginis longe bianricalatis; capitulis multi-(30-50)- 
floris singulis seu paucis in glomerulum congestis seu breviter 
ulatis; florum Sale sessilium sepalis lineari- 
