334 North Amerlciui Cyjjeracecf. 
dilatatus. Semen rubrotuntlum, transversiin rugulosum. Seta- 0. — In 
Virginia et Carolina." — Vahl, 1. c. 
Obs. In consequence of the absence of bristles in this species, 
Roemer and Schultes have placed it it the genus Isolepis. It has not 
been recognized by any American botanist, and I suspect it will prove 
to be a species of Rhynchospora. 
11. ERIOPHORUM, Linn. 
Scales of the spike imbricated on all sides, mostly mem- 
branaceous, numerous. Bristles (hairs) of the perigynium 
numerous, (rarely as few as six,) capillary, flat, very long, col- 
lected in fascicles at the base of the nut and forming a silky or 
woolly tuft. Stamens 3. Style 3-cleft, simple at the base, 
deciduous. — Culm generally leafy; spikes rarely solitary, 
growing at the summit of the culm, mostly in a more or less 
compound umbel or cyme ; when mature, clothed with the long 
silky bristles. 
Eriophorum, Linn. gen. p. 30 ; Jnss.gen. p. 27 ; Lam. ill. 
t. 39 ; Roem. ^'- Schult. gen. 180; Lcstib. ess. Jam. Cijp. p. 42, 
no. 55; Nees ah Esenh. in WigMs contrih. p. 110, and in 
LinncBa, 9. p. 293 ; Nutt. gen. 1. p. 36. 
§. 1. Spike sulitary. 
1. Eriophorum alpinum, Linn. 
Culm acutely triangular, filiform, somewhat scabrous, with 
short subulate leaves at the base ; scales somewhat coriaceous, 
keeled ; spike oblong ; hairs 6, crisped. 
E. alpinum, I,2H«.; Willd. sjy. 1. p. 311 ; Valil, cnum. 2. p. 3SS; 
Wahl. Jl. Lapp. p. 16; Smith, Eng.fl. 1. p. G7 ; Eng. hot. t. 311; 
Ram. SfSchult. syst. 2. p. 156; Sprcng. syst. 1. p. 214 : Torr. ! fl. 1. 
p. 65 ; Big.!fi. Bost. ed. 2. p. 23; Beck, lot. p. 427; Gray.' Gram, c^ 
Cyp. part 1, no. 87. 
E. Hudsonianum, Miclix. ! Jl. 1. p. 34. 
Trichophoruni alpinum, Pursli, jl. 1. p. 57; Miihl cat. p. 7; Link, 
enum. alt. p. 47, (fide Schuli.). 
