98 TETRANDRIA. MONOGYNIA. 



alternate or opposite simple leaves, and flowers which are 

 solitavy and axillary, or tending- to be terminally aggne- 

 gated. Petals generally yellow and caducous. 



Species. § i. Petaliferous.— -!• L. macrocarpa. 2. ala- 

 ta, Ll. 3. sphcerocarpa E. 4 cyUnilrica, E. 5. lanceolata. E. 

 6. hirsuta. 7- angustifiUa. 8. virg-ata 9.Juss>ieoidc!}. W ca- 

 pitata. 11 pedunculosa. — '^ ii. Apetalous — 12. microcarpa. 

 13. mollis. 



A genus confined to the United States, with the excep- 

 tion of 2 species in India, growing pi-incipally in the 

 Southern Slates, on the margins ot ponds and s\vanri])s, 

 the L. macroraipa being the only species which extends 

 beyond the 38th degree of north Katitude, except perhaps 

 the L. hirsnta in a few peculiar localities. 



142. ISNARDIA. L, 



Calix canipanulate, 4 -cleft. Petals 0, or mi- 

 nute. Capsule surrounded by the base of llie 

 calix, 4-sided, 4 celled, many-seeded. 



A creeping aquatic herb; leaves opposite; flowers mi- 

 nute, axillary, opposite and sessile. — With the habit of 

 PepUs, but more closely allied to Lmhviffia. 



Species. 1. /. pahistris- {lAidiuigia 7utida, INItch.) 

 Common to Europe and An. erica, from Canada to the 

 West Indies. Of this genus there is only another species 

 in Peru. 



143. CORN US. L. (Cornel. Dog-wood.) 

 Flowers sometimes ae^gregated in a 4-leave(l 



involucrum. — Caiijc 4-toolhed. Petals 4, small, 

 broader at the base. Vnipe inferior, not crown- 

 ed by the calix; nut 2-celIed, 2-seeded. 



Small trees or shrubs; leaves opposite, without stipules, 

 in one species alternate; flowers in some species disposed 

 in terminal corymbs, coming out later than the.lea\es, in 

 others earlier, collected in uni bells or capiiuli subtended 

 by a common 4-leaved involucrum, which is sometimes 

 large and coloured, (as in C Jlorida, C- sitecica, and 

 C. canadensis.) Corculum of the seed long, involved in a 

 carneous perisperm. 



Species. 1. C. canadensis. 2.forida. 3. circinaia. 4. 

 sericea. 5. asperifoUa. 6. stricta. 7 • sangidnea. 8. alba. 

 (The fruit of this -pecies, though bitter and unpalatable, 

 is eaten by the savages of the Missouri, from v, hence it 

 seems to extend across the continent, and appears again 



