MONOECIA POLYANDRIA. 
627 
5. Porcina. Mich. 
C. foliolis sub-septe- 
nis, Ianceolatis, acumi- 
natis, serratis, utrinque 
glabris, fructibus par- 
vulis; nuce laevi, duris- 
sima. 
Leaflets generally 7, 
lanceolate, acuminate, 
serrate, glabrous on 
both surfaces; fruit 
small; nut smooth, very 
hard. 
Nutt. 2. p. 222. 
Juglans Porcina, Pursh, 2. p. 638. 
J. Obcordata and J. Glabra, Willd. Sp. pi. 4. p. 458. 
Icon. Mich. arb. for. 1. p. 206. 
A very large tree, growing 70 — 80 feet in height, and in favourable soils 
frequently occurring 3 — 4 feet in diameter. Leaves pinnate, leaflets 7 — 9; 
smaller, narrower, and more glabrous than those of the C. Tomentosa. Fruit 
small, varying much. Nut oblong or spherical, very bitter, with a hard 
shell. 
This tree, in the low country of Carolina and Georgia, generally grows to 
a larger size than any other species. It is found along the margins of 
swamps, or on the flat knowls with which our swamps are frequently broken, 
and is commonly known as the Swamp or Pignut Hickory. 
Flowers April. 
6. Aqua tic a. Mich. 
C. foliolis sub-unde- 
nis, angusto oblique- 
lanceolatis, acuminatis, 
sub-serratis, glabris 
sessilibus; fructibus pe- 
dunculatis, ovatis, sutu- 
ris 4, prominulis, nuce 
subrotunda, compressa. 
Pursh, 2. p. 638. Nutt. 2. p. 222. 
Leaflets generally 
eleven, narrow and ob- 
liquely lanceolate, acu- 
minate, slightly serrate, 
glabrous, sessile; fruit 
on peduncles, ovate, 
sutures 4, prominent; 
nut nearly round, com- 
pressed. 
Mich. arb. for. 1. p. 182. 
A tree growing 40—50 feet high, and resembling in its habit the other 
species of this genus. Leaves pinnate, leaflets 9 — -13 long, very narrow 
aud obliquely lanceolate, very acute, slightly acuminate, serrate, more gla- 
brous than those of any other species of Carya, except the midrib, which is 
