38 _ TETRANDRIA: ‘MONOGYNIA. 
" gitexngté or opposite mane leaves, and flowers which are 
solitary and axillary, or tending to be bai Sage agate: 
gated. Petals generally yellow and caducous. - 
Species. §1. Petalterots.—1. L. macrocarpa. 2. ala- 
‘tay ku. 3. spheracarpa. EB. 4 cylindrica, E. 5. lanceolata. E- 
6. hirsuta. 7. angustifclia. 8. virgata. 9. Jussiecides. 10. ca- 
pitata. 11. pedunculosu—y 11. Apetalous. —12. microcarpa- 
13. mollis. 
A genus confined to the United States, with the excep- 
tion of 2 species in “India, growing principally in the 
Southern States, on the margins of ponds and swamps, 
the J. macrocarpa being the only species which extends 
beyond the 38th degree of north latitude, except perhaps 
1 
the L. hirsuta in a few peculiar localities. 
142. ISNARDIA. L. 
Calix campanulate, 4-cleft. Petals 0, or mi- 
-nute, Capsule surrounded by the base of the 
-ealix, 4-sided, 4-celled, many-seeded. 
A creeping aquatic herb; leaves opposite; flowers mi- 
nute, axillary, opposite and sessile.—With the habit of — 
Peplis, but more closely allied to Ludwigia. : 
Species. 1. J, palustris. (Ludwigia nitiday “Micx.) 
Common to Europe and, America, from Canada to the 
ie oece buliey Of this is there is only another species 
5 CORNES. re sGornel: Dog: wood.) 
Flowers sometimes aggregated in a 4-leaved — 
sm,—Calix 4-toothed. i small, 
at the base. Drupe inferior, not crown- 
acer by the calix; nut 2-celled, 2-seeded. 
. Small-trees or shrubs; leaves opposite, without ‘stipules, 
in one species‘alternate; flowers in some species disposed 
= pues i elec coming out later than the leaves, in 
arlie ed in umbells or eapituli subtended 
in C farida, C. suecica, ‘and. 
= aden) Coreulum of the seed long, involved i ina * 
