98 TETRANDRIA. MONOGTNlAf 



alternate or opposite simple leaves, and flowers which are 

 solitary and axillary, or tending- to be terminally aggre- 

 gated. Petals generally yellow and caducous. 



Species. § i. Petaliferous. — 1. L. macrocarpa. 2. ala- 

 ta, Kl. 3. sphecrocurpa E. 4 cylindrica, E. 5. lunceolata.Vj. 

 6. fiirsnta. 7. aiiyustifAia. 8. virgata 9.Jussiceoirles. 10 ca- 

 pitata. 11 pedtniculosa. — ^ ii. Apetalous. — 12. microcarpa. 

 13. mollis. 



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

 tion ot 2 species in India, growing principally in the 

 Southern Slates, on the margins of ponds and swamps, 

 the L. macrocarpa being the only species which extends 

 beyond the 38th degree of north latitude, except perhaps 

 the L, Idrsuta m a few peculiar localities. 



142. ISNARDIA. L, 



Calix caMjpanulate, 4-rleft. Petals 0, or mi- 

 mite. Capsule suriounded by the base of the 

 calix, 4-sided, 4-celle(J, many-seeded. 



A creeping aquatic herb; leaves opposite; flowers mi- 

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

 JPeplis, but more closely allied to Jjiidivigin. 



Species. 1. I pahistris. {lAidxvigia mtida, MicH.) 

 Common to Europe and Ameiica, from Canada to the 

 West liides. Of this genus there is only another species 

 jn Peru. 



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

 Flowers sometimes ai^giegated in a 4-lcaved 



involiicriim. — Ca/i^ 4-toolhed. Petals 4, small, 

 broader at tiie base. Drupe inferior, not crown- 

 ed 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 

 in terminal corymbs, commg out later than the leaves, in 

 others earlier, collected in umbells or capituli subtended 

 by a common 4-leaved involucrunt, which is sometimes 

 large and coloured, as in C Jiurida, C- suecica^ and 

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

 carneous perisperm. 



Species. 1. C. canodenfiis. %fovida. 3. circinata. 4. 

 sericea. 5. asperifolia. 6. stricta. 7 ■ sanguiiiea. 8. alba. 

 (The fruit of ih-s pecies, thouiih bitter and unp.-iUitsible, 

 is eaten bv the savages of tht Missouri, fi-om v. hence it 

 seems to extend across the continent, and appears again 



