76 
A. coridifolius at least is surely quite distinct, and of A. patens 
to which A. patentissimus can by no means be referred. 
Moreover some supposed new species are added from the col- 
lections of wild plants in the authors’ hands. Upon the 
whole, the genus Aster may be regarded as well arranged ; 
but we fear it is still a long way from being settled. The 
probability is that a very large proportion of the forms, whe- 
ther wild or cultivated, are inconstant, and no one has yet 
succeeded in obtaining a clue to the discovery of the limits 
within which the variations take place. 
We trust the sale of this work will remunerate the authors 
for their long and arduous task ; it is by far the best flora of 
North America that has ever appeared; indeed there are few 
works upon the vegetation of any country more valuable for 
systematic accuracy ; and it is quite indispensable to all work- 
ing botanists. 
161. TRITELEIA aurea; foliis linearibus® virentibus, spatha obtusa bivalvi 
5-flora. pedicellis filiformibus triplo breviore, perianthii feré 6-partit 
laciniis aureis estriatis lineari-lanceolatis, staminibus fauce tubi brevis 
insertis. 
A small bulbous plant, about the size, and with the habit, 
of Allium striatum. The flowers are deep yellow, and desti- 
tute of the stripe down the middle of the segment, which is 
usual in the other species. It has lately flowered with Capt. 
Sulivan, who brought it from Monte Video, and communicated 
it to Sir C. Lemon, Bart. at Carclew. 
162. MORMODES aromaticum; sepalis petalisque ovatis acuminatis secun- 
dis concavis, labello angusté cuneato convexo lacinia intermedia trian- 
gulari acuminata cucullaté, columnz dorso subulato. 
I can hardly say whether this is really distinct from Mor- 
modes pardinum, not having a specimen at hand for com- 
parison. It is, however, very different in colour and general 
appearance, having a pale pinkish ground sown thickly with 
dull wine-red specks. It is a Mexican plant, specimens of 
which have appeared in several collections. That before me 
is from Messrs. Loddiges. The flowers have a powerful 
odour like that of aromatic vinegar. 
