MONANDRIA— DIGYNIA. Callitriche. 9 



C. gracilis. Engl. Bot. v. 30. t. 21 40. Comp. 2. 



C.n. 1684 0. Hall. Hist. v. 3. 4. 



C. minor, caulibus et foliis tenuissimis. Vaill. Mem.de VAc. des Sc. 



for 1719. \8.n.6. Dill, in Rail Syn. 133. 

 Equisetum minus, sub aqua repens, ad genicula polyspermon. 



Sher. in Raii Syn. 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 ; when dry, glittering and glassy, almost colour- 

 less. Whorled branches very rarely simple j mostly forked or 

 subdivided repeatedly, bearing the flowers in their forks. Anih. 

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

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

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

 spect different 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. Fl. Br.S. Lam. t. 5. Gcertn. t. 68. 



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

 gece. Br. Terr. Austr. 17. 



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

 Serpicula ,« 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 corolla of this 

 genus, though inferior. 



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

 Filam. capillary, gradually elongated. Anth. terminal, 

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



