200° 10:Vauch. 1. HYDROPHYTZ. = Placell. aphe 
- Eetesperma hamata, Vaucher, 26. 4 
. Vaucheria‘hamata, De Cand. Fl. Fr. 2, 63. 
Ditches; April. 
Tufts very dense, floating in water; peduncles mostly: 
facing one way, 4 times as long as the vesicle. 
4, Vaucheria terrestris. Land vaucher. 
Land; threads hairlike, ascending, branched ;. ramult 
very short, facing one way} vesicles sessile, single, globose. 
Ectosperma terrestris, Faucher, 27. 
Vaucheria terrestris, De Cand. Fl. Fr. 2, 62. 
Naked ground, damp.shady places; April and August. 
Tufis entangled, very dense; upper branches spreading;: 
shorts vesicles in the fork; or at the side of the branches: 
5. Vaucheria Dillwyniz. Dillwyn’s vaucher: 
Land; threads hairlike,;. flexuous,. branched; vesitles: 
nearly sessile, single, globose. 
Riccia arachnoidea, Flor. Dan, 1, 890. 
Ceramium Dillwynii, Roth Cat, 3, 11: 
Conferva frigida, Dillw. 16. 
Conferva Dillwynii, Weber and Mohr, in Dillw. 16. 
Vaucheria Dillwynii, #l..Dan. 1595, 1. 
Damp shady places. | ¢ 
Tufts very close; threads decumbent, entangled ; vesicles” 
rarely peduncled; pedunedes very slight. 
6. Vaucheria granulata. Granulated vauchér. 
Land; threads branched, creeping, or buried: in’ the 
ground; vesicles solitary, globular, terminal. 
Ulva granulata, Lin, S. P. 1633. 
Tremella granulata, Hudson Fl. Angl. 560; Engl. Bot. 324. 
Linkia granulata, Wigg Prim. Fl. Hols, 94, 
Ulva radicata, Retz. Prodr. 303. 
Waucheria radicata, Agardh Disp, ed. 1, 22. 
Vaucheria granulata, Lyngbye Hydr. Dan. 78. 
Dried-up ditches on clay; ephemeral; autumn. 
Threads very short, green above; vesicles globular, about 
the size of mustard-seeds, cracking under the feet. 
7 Vaucheria clavata. ; Clubbed vaucher. 
Marine ; threads hairlike, branched at the tip; vesicles 
solitary, in the clublike tips of the reflex branches. 
Eetosperina ‘clavata, Vaucher, 34. 
Waucheria clavata, De Candolle Fl. Fr. 2, 60. 
Conferva dilatata, Ruth Cat. 3, 183. 
Conferva vesicata, Muller N. Act. Petw®3, 95. 
Salt-water ditches; annual; April and September. 
