OF NORTH AMERICA 
87 
different in shape, yet all entire, — -of this diffi- 
cult G. once blended in Hyoseris , we have 12 
or 15 sp, and many varieties, difficult to distin- 
guish : the G. Ackyrastrum Necker and Cyn- 
thia Don, appear the same; if different they 
must be better distinguished — as to Aposeris 
Necker with naked seeds, it differs but little 
from my Laxanon 203, of which it appears 
Apogon of Elliot is a 2d sp. his name was pre- 
occupied for a fish. Our Hieraciums must per- 
haps be divided, I had formed the G. Ophio- 
seris with many, but the 4 G, of Necker out of 
Hieracium must be verified and restored, they 
are Aracium , Plancia , Willemetia , and Miegia 
now occupied by a grass, 
961. POLYGALA, this G. now forming a 
vast family must be divided by flowers and habit, 
as was suggested by many botanists. I did so 
long ago, proposing Triclisperma, Psychanthus, 
and Muraltia with many subgenera, that must 
soon become as in any Genera, I shall merely 
enumerate them here, reserving mv labor on 
this family for a monograph. 
1. Polygala stamens 8 diadelphous, corolla 
cristate. 
2. Muraltia Necker 1790, differs by corolla 
not cristate, once Heisteria of L. not of Jaquin, 
since adopted by L. type P. senega &c. 
3. Triclisperma Raf. 1814, type P. pau- 
cifoiia &c. 
4. Psychanthus Raf. [814, type P. myrti- 
folia & c. 
5. Sexilia R. stamens 6 sessile, corolla bila- 
biate cristate, type P. verticillata and all whorl- 
ed species, chiefly annuals. 
6. Plostaxis R. stamens 4, cor. fimbriate, 
fl. capitate, type P. lutea &c. 
