CONFERVA VIVIPARA. 



C. filamentis dichotomo-ramofis, ramis flcxuofis ad diffepimenta bulbi- 

 feris, bulbis piliferis, articulis longis, capfulis lateralibus feflilibus. 



In boggy rivulets, growing on (tones and mofs, &c. near Yarmouth. Dawfon 

 Turner, Efq. Near Cadoxton juxta Neath, Glamorganfliire. TK IV. Young. 

 On a heath about a mile weft of Five Lanes, between Launcefton and Bodmin, 

 Cornwall. 



THIS moft interesting fpecies I received at the latter end of May, 1802, 

 from my friend Dawfon Turner, who firft difcovered it, in the neighbourhood of 

 Yarmouth, fince which it has been once found, though in fmall quantities, near 

 Neath ; and in September laft I was fo fortunate as to meet with it on a boggy 

 heath in Cornwall, where in feveral rivulets it almoft clothed large maffes of 

 Sphagnum latifolium. Mr. Turner has alfo received it under the name of 

 C. pumilio, from Profeflbr Mertens, who gathered it near Bremen. 



It grows on various fubftances, in fmall, delicate, bufhy tufts, never I 

 believe exceeding half-an-inch, while its ufual length is not more than two lines. 

 The color is a yellowifh green, afluming a browner tinge with age. The Item 

 is irregularly dichotomous, and flexuous, as alfo are the branches, and under the 

 microfcope they have rather a woody appearance. The length of the joints 

 is about five times greater than their thicknefs. The fructification is in feffile 

 capfules, at the end of the joints. At moft of the diflepiments where there are 

 no capfules, a fmall bulb or bud is obfervable, from which proceeds a very 

 long, unbranched, extremely (lender, colorlefs filament, fimilar to the hairs of the 

 Rivulanse, and jointed, but with joints far longer than thofe of any other part of 

 the plant. Thefe fmall bulbs ifiue only from the ends of fuch joints as produce 

 no capfules, and they appear to me precifely to correfpond in nature with the 

 viviparous bulbs in feveral phcenogamous plants, and their long filaments have 



