222 
Atkinson.— A Monograph of the 
Note. By noting the origin of the procarps it is quite easy 
to separate fluviatilis from some forms of fncina which have 
been confounded with it. 
Habitat. Fragments of specimens from Oregon, in Herb. 
W. G. Farlow. I have had the opportunity of examining 
L. corrallina Bory, Libert Plant. Crypt. Ard. ioo, and L. 
fluviatilis Ag. Rabh. Alg. Sachs. 299. 
7. Lemanea (Sacheria) fueina Bory. 
Chantransia dichotoma D. C., Flore Fran^aise, vi. 
1808. 
Lemanea fueina Bory, Ann. d. Mus. 1808. 
Lemanea subtilis Ag., Spec. Alg. 1824-28. 
Lemanea torulosa Kiitz., Spec. Alg. et Tab. Phyc. vol. 
vii. pi. 84, Fig. 2 ; Wolle, Fresh Wat. Alg. 1887, ex parte. 
Lemanea mamillosa Kiitz., Spec. Alg. et Tab. Phyc. 
1849. 
Lemanea fueina Rabh., Flora Europ. etc. iii. 1884-68. 
Lemanea fluviatilis Wolle, Fresh Wat. Alg. U. S. ex 
parte, 1872; Wolle, Fresh Wat. Alg. 1887, ex parte. 
Sacheria fueina Sird’t., Ann. d. Sci. Nat. 1872. 
Sacheria mamillosa Sird’t., Ann. d. Sci. Nat. 1872. 
Sacheria rigida Sird’t., Ann. d. Sci. Nat. 1872? (Mid- 
dlesex Flora, 1888, p. 153, Dame and Collins). 
Chantransia violacea 1 , var . Beardslei , Wolle, Bull. Torr. 
Bot. Club, 1879 ; Fresh Wat. Alg. U. S. 1887, p. 60, Fig 14, 
pi. 68. 
Chantransia-iorm producing extensive mats or circumscribed 
tufts, greenish or bluish-green, 1 mm.-2 mm. long, primary 
branches usually alternate, final branching unilateral, alter- 
nate, or sometimes opposite or slightly fasciculate, sometimes 
pilose, filaments not much attenuated at base, 1 5 ^-35 n in 
diameter. 
Sexual shoots before maturity olivaceous, or yellowish- 
1 This is the Chantransia-iorva of Lemanea ( Sacheria ) fueina Bory var. rigida , 
which Wolle found ‘as an undergrowth, intermingled with Lemanea , which was 
fringed with the parasitic C. violacea from Painesville, Ohio. 
