204 Chaetophoraceae 



Draparnaldia uniformis Ag. Flora, 10 : 635. 1827 ; Icon. Alg. 

 Eur.fl.j7. 1835. (?) 



Bright green, somewhat creeping at the base, branches numer- 

 ous, branchlets rather remote, alternate or opposite, erect or some- 

 what divergent, attenuated upward to an acute apex ; cells 7.5— 

 \2 fi'm diameter, 1-2 times as long, in the branchlets 3-5 times as 

 long. 



In warm springs and hot water waste from mills, etc. 



Wolle's figure seems so well in accord with the species, that 

 there is no good reason for question in regard to it. Draparnaldia 

 uniformis has usually been considered a variety of Stigeoclonium 

 tenue, but both in respect of general character and habitat, it 

 appears to be more closely allied to this species. 



8. Myxonema nanum (Dillw.) 



Conferva nana Dillw. Brit. Conferv. pi. jo. 1803. Web. & 

 Mohr, Grossbrit. Conferv. pi. jo. 1805. Lyngb. Tent. Hyd. 

 Dan. 149. pi. 52. A. 18 19. 



Draparnaldia sparsa Hassall, Ann. & Mag. Nat. His. 11 : 428. 



1843- 



D. nana Hassall, Brit. F. W. Alg. 124. //. 10. f 4.. 1845. 



Stigeoclonium nanum Kutz. Spec. Alg. 354. 1849. Cooke, 



F. W. Alg. 190. //. 74. f 2. 1883. Wolle, F. W. Alg. 112. 



pi. 96. f. 10. 1887. Saunders, Flora of Neb. 1 : 64. //. 18. f 1. 



1894. 



Plants 2-3 mm. high ; branches and branchlets alternate, 

 tapering somewhat, obtuse or short-pointed ; cells 6-8 fi in diame- 

 ter, and 1-2 times as long. 



Exsic. : Phyc. Bor. Am. 867, Iroquois, South Dakota, Sep- 

 tember, 1897 (De Alton Saunders). 



The figures given by Wolle and Saunders are sufficiently like 

 those of Dillwyn and Cooke, so that the identification of their 

 plants can hardly be questioned. At the same time, it appears 

 very probable that this species is only a young state of some 

 other. The specimen from South Dakota particularly has this 

 appearance and the lack of strongly marked characters in the diag- 

 nosis points to the same conclusion. 



