70 



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, arc 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, spatba obtusa bivalvi 

 5-flora pedicellis filiforniibus triplo breviore, periantbii fere 6-partiti 

 laciniis aureis estriatis lineuri-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 anguste cuneato convex'o lacinia, intermedia triau- 

 gulaii acuminata cucullata, columnse 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 mc 

 is from Messrs. Locldiges. The flowers have a powerful 

 odour like that of aromatic vinegar. 



