578 SYNGENESIA NECESSARIA. Silphium. 
H: July—Oct. v.v. A tall robust plant. Var. f. 
- though considered by Willdenow as a distinct species, 
appears to be little more than a variety. 
connatum, 5. S. caule tereti hispido, foliis oppositis. connatis remote 
serratis scabiis.— Willd. sp. pl. 3. p. 23: 32. 
In high mountains of Virginia and Carolina. Y. Aug. 
Sept. v.v. Resembles the preceding but is a very 
distinct species. 
Asteriscus. — 6. S. caule tereti hispido, foliis oppositis alternisve oblongis 
acutis serratis scabris, calycibus ciis. HM) sp. 
pl. 3. p. 2332, 
Icon. Dill. elth. t. 37. f. 42. 
In mountain meadows: Virginia -— Carolina. X. 
July—Sept. v.v. 
pumilum. 7. S. caule tenuiter tomentoso, foliis ovalibus leviter serra- 
_ tis obtusis subtomentosis, calycinis foliolis obovatis ob- 
tusis, seminibus muticis, —W illd. sp. pl. 3. p. 2332. 
ls Foris. Herb. Banks. 
In a Michaux. Bartram. OM. v.s. in ae 
integrifolium. $, $. a tetragono aspero, foliis oppositis s “be 
longis integerrimis scabris, floribus paucis breviter 
pedunculatis —Willd. sp. pl. 3. p. 2333, E 
. On the most western of the Alle y poca 
Illinois. 4. Aug.—Oct. v.v. About four feet hi; ji 
levigatum. 9. S. caule simplici tetragono sulcato glabro, - foliis oppositis 
sessilibus ovatis acuminatis tenuissime. serr 
subcordatis utrinque glebria, pani ams rat 
ciliatis. 
In Georgia. Enslen. Y v. s. in Herb, Basien: “About 
two feet high; flowersin a close corymb. — 
trifoliatum. 0, S. caule sexangulo levi, foliis terno-verticillatis ovato- — 
` lanceolatis inaequaliter dentato-serratis scabris, (ges m 
rioribus sessilibus, — nie o ^ 
$2.3.5.23939. — - m 
/ S. ternifoligm. Mich. fl. amer.2. p. 146. gi 
Icon. Moris. hist. 3. s. G t, 3. f. 08. ; 
On the high mountains of Virginia oa E y: ". 
Sept. Oct. v. v. About six feethigh, —— i 
fernatum. — 11.S. caule tereti levi, foliis terno-verticillatis peti ! 
 ceolatis subdentienlatis scabriusculis basi ciliatis, Su- — 
Tee sparsis sessilibus, panicula ie eo 
ycibus ciliatis. — Willd, sp. pl. esata | 
