MONANDRIA— DIGYNIA. Callitriche. 9 



C. gracilis. Engl. But. v. 30. t. 2140. Comp. 2. 



C. n. 1684 /3. Hall. Hist. v. 3. 4. 



C. minor, caulibus et foliis tenuissimis. Faill. Mem. dc VAc. des Sc, 

 for 1719. 18. 71. 6. Dill, in Raii Syn. 133. 



Equisetum minus, sub aqua repens, ad genicula polyspermon. 

 Sher. in Raii Syu. ed. 2. 43. 



In ponds and boggy pools, rare. 



In fish-ponds in Jersey. Sherard. St. Leonard's forest, Sussex. 

 Mr. Borrer. 



Annual. September. 



Much smaller, as well as more delicate and compound, than any 

 of the foregoing j when dry, glittering and gleussy, almost colour- 

 less. Whorled branches very rarely simple j mostly forked or 

 subdivided repeatedly, bearing t\\eJiowers in their forks. Anth. 

 and germ, usually together, without bracteas. This species and 

 C.Jiexilis first taught me to consider Chara as having no real 

 leaves ; what preceding vvriters have termed so, being in no re- 

 spect difl:erent from the branches, in structure or economy, as 

 they often bear the flowers. 



In Ray's Historia, <v. 3. 104, the present species is confounded with 

 the naked state of C. vulgaris ; and Dillenius, in his edition of 

 the Synopsis, has fallen into the same error. 



MONANDRIA DIGYNIA. 

 5. CALLITRICHE. Water-starwort. 



Linn. Gen. 6. Juss. 19. FT. Br. 8. Lam. t. 5. Gcertn. t. 68. 



Nat. Ord. Inundatce. Linn. Naiades. Juss. 6. Halora- 

 gecE. Br. Terr. Austr. 17. 



Akin, doubtless, to Myriophyllum^ and to the exotic genus 

 Serpicida ; but there are too many anomalies and excep- 

 tions in the character, to allow us decidedly to refer Cal- 

 litriche to any established Order. The above affinity will 

 hardly induce me to give up the reputed coi'olla of this 

 genus, though inferior. 



Cal. none. Petals 2, oblong, incurved, acute, opposite, equal. 

 Filam. capillary, gi'adually elongated. Anth. terminal, 

 two-lobed. Germ, superior, four-lobed. Styles 2, capillary, 



