58 
FEOBOT. 
878. Panax americanum R. quinquefolmm 
var. do R. med. fl. t. 71. perennial, root fusi- 
form tuberose, stem streight, folioles 3 to 5 un- 
equal, petiolate, 3 large serrate cuneate acumi- 
nate, two small at base subovate, sometimes 
lacking, umbel equal to leaves.— This is the fa- 
mous American Ginseng found from Canada to 
Missouri, quite different from the Chinese or 
Tartarian sp. with 5 equal broad ovate leaves l 
It has also some varieties, 1 obovatum with 
broader leaves unequalv serrate, but still acute 
at base, 2 datum, very tall, 3 feet high, perhaps 
only old age. For a long account of this plant 
see my med. fl. 2. page 52. 
ASCLEPIAS and akin 
879. Gonolorus riflorus Raf. Coll. herb, 
prostrate hirsute, leaves small cordate ciliate 
acute on short petiols sometimes obliqual ; flow- 
ers geminate, peduncles equal to petiols — on 
Red River in Arkanzas and Texas, remarka- 
ble by small leaves and flowers, one fourth in 
size of 6?* hirsutus . flowers dark purple, lobes 
oblong obtuse : whole plant except corolla co- 
vered with soft white hairs. 
880. An sox i a tenuifolia R. stem sufxruti- 
cose ramose smooth, branches pubescent, leaves 
narrow linear uninerve quite smooth, margin re- 
volute, end obtuse — Florida found by Kin. One 
of the 3 sp. blended in A. an gusti folia , which 
has leaves linear lanceolate, stem herbaceous 
pilose. The A . ciliata of Waiter I have also 
and is quite distinct by flat leaves broader al- 
most lanceolate quite ciliate with several small 
lateral nerves. There are 3 similar deviations 
In A. latifolia with ovate acuminate leaves, 2d 
with elliptic acute leaves, A. elliptic a, 3d with 
lanceolate leaves which is A. salieifolia , I have 
