002 



DICLINIA SEGREGATE. 



I. SEGREGJTJE. 



681. VALLISNERIA. Gen. pi. I4g\. 



americana. l.V. foliis linearibus, pedunculis masculis femineisque 

 rectis. irUld. sp. pi. 4. p. 051. Muh.ftamer. 2. 

 p. 220. 

 At the bottom of muddy and slow-flowing rivers : Mis- 

 sissippi and St. John's, Florida. Michaux. In Os- 

 wego river, New York ■, Delaware, Pensylvania, and 

 James's and Greenbriar rivers Virginia. Ph. %. 

 (J ? Aug. -Oct, V. V. This most interesting and 

 singular plant I observed in tht- Delaware, near 

 Phihulelphia, inlSOO; which discovery I cnmmu- 

 nicated, accompanied with a drawing and description, 

 to Dr. B, S. Barton, of Philadelphia. The oeconomy 

 of its foecundalion is highly interestiiig to the young 

 student of the sexual system Michaux and Willde- 

 now consider it as specificallv distinct from F. spira- 

 lis ; but I have always considered it only a local va- 

 riety, as the peduncles of the female flowers are in 

 deep water really spiral. 



682. NAJAS. JFi/ld. act. acad. lerol. 1798. p. 85. 



canadensis. l.N. pusilla, filiformis, laevis ; foliis angustissime lineari- 

 bus. Mich.Ji. amer. 2. p. 220. 

 In lakes; Canada, on Lake St. John's. Michaux. -}-. 



683. DIOTIS. Gen. pi. 1423. 



Janata. 1- ^- ""'""'bns pnrtibus cano-tomentosa j caule flexuoso, 



glonicrulib >picarum confertixsimis- 

 On the banks of the Missouri, in oppn prairies. M. 

 Leiii>. Vi . Aug. *^ept. v. s. in Herb. Lewis Re- 

 sembles Diotis ceraloides, but is distinct at first sight 

 by its long woolly tomentum. 



684. RICINU3. Gen.pl.lA6A. 



communis. 1- ^ ^c^"^ peltatispalmatis, lobis lanceolatis serratis, caule 

 heibaceo pruinoso, stigmatibus tnbus apice bifidis, 

 capsulis echinatis. JFilld. sp. pi. 4. p. 564. 

 Icon. £lacku>. t. 148. 



