ee SYNGENESIA, SUPERFLUA. 
Flowers large and yellow. Calix hemispherical, closely 
imbricated, the scales terminating in foliaceous revolute 
ints, abundantly secreting a resinous fluid which often 
its tenacity prevents the expansion of many of the ra- 
dial florets. Rays linear-lanceolate. Seed obovate, com- 
pressed, smooth. Pappus consisting of about 4 decidu- 
ous chaffy sete. Receptacle flat, naked, cellularly punc- 
tured. War. On tocky calcareous “hills near the lead- 
mines of the Meremck, Missisippi, a few miles from St. 
Louis—Mr. J. Bradbury: also abundant on the broken 
banks of the Missouri. In these situations it is a biennial, 
cultivated in London it becomes suffruticose, even whea 
exposed to the climate. May it not be a variety of D. glu- 
tinesa, deteriorated in. th m of its duration by the seve- 
rity of the climates into which it has gradually been ex- 
tended? Although arranged in a cifferent order of the 
Linnzan system it appears by no ineans indistinctly al- 
lied to the genus Curthamus, and the orderof Cin anoce- 
PHALE. 
568  ARNICA. ZL. 
-Calix hemispherical, leafiets equal, mostly in 
Sd staple series? Radial florets often producing 
5 filaments destitute of anthers. - Receptacle na- 
ked. Pappus simple, scabrous. 
A polymorphous and divided genus? Some of the spe- 
_ cies caulescent and also shrubby; those of Europe and. 
North America, with a few others, often scapigerous, 
scapes vscaceg sometimes producing 1 or 2 pair of 
opposite leaves; flowers mostly yellow, 
_ , Species. 1. A. montana. 8. fulgens. A. fulgens. Pu. 
Searcely dissimilar to sp of the alpine 
variety in the Banksian herbarium Has. On the margins 
of marshy springs and in depressed rene from the 
Arikarees to Fort Mandan, and ly as far as the 
Jountains. Flowering in July. Flowers bright yellow. 
s. Minutely pubescent. Scape about 12 inches high, 
tly with 2 pair of leaves, terminated by 1 rarely 3 
- Leaves Pee 3 ie dec Se sum- 
