4^8 
juncea. 
aliissima. 
cordata, 
virgata. 
simplex. 
SYNGENESIA AQUALIS, 
508. PRENANTHES. Gen, pl, 1236', 
1. P. caule virgatim-ramosissimo sulcato glabro foliis cau~ 
iinis remotis subulatis brevissimis, ramulis unifloris, 
calycibus 5-fidis 5-floris : foliolis margine membra- 
naceis. 
On the banks of the Missouri. 71. v, s. Flowers pur- 
ple 5 it has a striking resemblance to C hondril la juncea 
but the leaves are shorter, and the pappus entirely ses- 
sile ; the radical leaves I have not seen. 
2. P. cauie ramoso, foliis trilobis petiolatis angulatis denti- 
culatis margine scabris, racemis axillaribus, floribus 
nutantibus, calycibus sub-5-lioris. — Willd, sp. pl. 3. 
p. 1537 . 
Icon. Pluk. aim, t. olj.f. 2. 
In shady woods : Canada to Virginia. July — Sept. 
V. V. Flowers yellow. Generally a very tall robust 
plant. 
3. P. caule superne paniculato, foliis petiolatis cordatis den- 
tatis ciliatis, floralibus sessilibus oblongis integerrimis, 
panicula laxa racemifiora, floribus nutantibus, calyci- 
bus 6-fidis 6-floris.- — Willd. hort. heroi. 25. 
In shady woods, about rocks 5 New York to Virginia. 
11 . Ang. — Oct. V. V. Flowers pale yellow. It is 
an intermediate species between the preceding and 
P. alba. 
4. P. glabra 3 canle simplicissimo, foliis omnibus lyrato- 
sinuatis, racemulis subsecundis, floribus pendulis, ca- 
lycibus glabris 8 -fldis 10 -floris.— Mic/i, fl. amer. 2 . 
p. 83. 
P. autumnalis. Walt.Ji. car. I 93 . 
In sandy fields, near ditches : New Jersey to Carolina. 
Ij . . Aug. Sept. V. V. From three to six feet 5 flow- 
ers pale purple. This plant has a very fine effect in 
large plantations. Michaux quotes Gronovius 3 but 
his P. autumnalis belongs to P. rubicunda. 
5 . P. caule simplicissimo, foliis superioribus lineari-lanceo- 
latis integerrimis, radicalibus lanceolatis sinuatis, ra- 
cemo terminali simplicissimo, floribus nutantibus, ca- 
lycibus sub-S-floris. 
P. virgata. Willd. sp. pl. 3. p. 1533. 
In Carolina, Enslen. If. . July, Aiig. v. s. in Herb. 
Enslen. About two feet high 5 flowers purple. 
