218 CHAETOPHORACEAE 
1. DRAPARNALDIA PLUMOSA (Vauch.) Agardh, Disp. Alg. Suec. 
| 42. 1812; Alg. Dec. 38. 1814; Syst. Alg. 58. 1824.  Lyngb. 
Tent. Hyd. Dan. 189. 1819. Hassall, Brit. F. W. Alg. 121. 
pl. 12. f. r. 1845. (?) Kütz. Spec. Ale 357. 1849; Tab. Phyc. 
3: gf 24. y. f 1853. . Rabenh. Flor. Eur. Ale a: 382. 
1808, Harvey, Ner Bor Am. 3: 72. 1857.. Wood, 
Hist. F. W. Ale 208. 1873.  Kirchn  Krypt. Flor. 
Schles. at: 67. 1858; Mik. Paanz. 11. pL r. f. r8. 1891. 
Cooke, Brit F. W. Alg. 193. M. 25. f. 2, 2. 1883. Wolle, 
F. ۷۷۰ Ale 109. A. 94. 1887. DeToni, Syll. Alg. 1: 191. 
1889. Saunders, Flora of Neb. 1: 65. A. 19. f. I. 1894. 
Conferva mutabilis Roth., Cat. Bot. 1: 197. 1797. (?) Dillw. 
Brit. Conferv. A. 72. 1802. Gi 
Batrachospermum plumosum | Nauch. Hist. Conferv. 113. ۰ 
II.f. 2. 1803. DeCand. Flor. Frang 2: 59. 1815. 
Draparnaldia hypnosa Bory, Ann. Mus. Hist. Nat. I2: 405. 
b 35.7.2. 1808. 
Conferva lubrica Eng. Bot. pl. 2087. 1809. Not Dillwyn. 
Tufts 1-15 cm. long; branches spreading or ascending, sol- 
itary or opposite, the fascicles of branchlets single, opposite or 
whorled, generally crowded, erect or ascending, lanceolate to 
ovate-acuminate in outline, their branchlets erect or ascending, 
the rachis usually much extended at the apex, or at least easily 
distinguishable from other branchlets; ultimate branchlets subu- 
late, or setiferous ; cells of larger branches generally nearly cylin- 
drical, somewhat constricted at the joints, 45-70 مم‎ in diameter, 
1-3 times as long, terminal branchlets 6-10 ےم‎ in diameter; chlo- 
rophyll band ۲-14 as wide as the length of the cell, proportion- 
ally broader in the small branches (ai, go, f. 7۲۰ 2). 
Exsic.: Tild. Am. Alg. 72, Minneapolis, Minn., August 
1894, Chester, S. C., February, 1896 (H. A. Green). Phyc. Bor. 
Am. 27, Bridgeport, Conn., February, 1892 (I. Holden). 
Attached to sticks and stones in running water. 
VERMONT: St. Johnsbury, August(644); North Hero, June(680). 
MassacHusETTS: Haverhill, April (555). 
Connecticut: Derby, April (539). 
New York: Central Park, April (317, 319), May (383, 595); 
Syracuse, June, 1884 (L. M. Underwood). 
New Jersey: Hudson Heights, April (304); Demarest, No- 
vember (218); Englewood, May (360). 
