Lemaneaceae of the United States . 2x7 
sometimes the ends of the moniliform chains of spores reach- 
ing nearly to the antherid-band, so that the entire procarp- 
zone is crowded with and darkened by the mass of spores. 
When dry and mature, or nearly so, the antherid-band is 
often constricted because of the presence of spores in the 
procarp-zpne. By moistening the sexual shoots in water, 
unless too old, the enlargements (antherid-zone and neigh- 
boring parts) are regularly fusiform. This readily dis- 
tinguishes L. anmdata Kiitz. from L. catenata Kiitz. : in 
catenate/, the segments are dumb-bell shaped, while in annnlata 
they are hour-glass shaped ; catenata is darker in color in 
age than anmdata , usually, and more rigid, agreeing in this 
respect more with L. nodosa Kiitz. which Rabenhorst (loc. cit.) 
makes a synonym of catenata ; the walls of anmdata are 
thinner and more delicate. 
After comparing the specimens collected by Sereno Watson, 
which Wood (loc. cit.) determined as L. catenata Kiitz., with 
a series of specimens of L. anmdata from California and 
Oregon in different stages of development, and with L. 
catenata from Herb. Crypt. Belg. 696 ; Rabh. Alg. Europ. 
1379; and Alg. de la France 288, I am convinced that this 
L. catenata of Wood, which Prof. D. C. Eaton of Yale 
University kindly loaned me, is L. annulata Kiitz. The 
‘ dark bands 2 * * * * * * 9 which Wood (loc. cit.) speaks of are caused by 
the young spores. 
2 . Lemanea torulosa Sird’t. 
Lemanea incurvata Bory, Ann. d. Mus. ex parte, 1808, 
Lemanea torulosa Kiitz., Tab. Phyc. vol. vii. pi. 84, 
Fig. 2 exclud. ; Wolle, Fresh Wat. Alg. U. S. ex parte, 
1887. 
Chantransia- form in tufts, branches pencilled, appressed, 
alternate, primary ones sometimes opposite, about 3 mm. 
Sexual shoots of an olive or olive-green color, darker when 
dry, arising from the basal cells of the Chantransia-ioxm , 
somewhat arcuate, slightly undulate. Procarp-zone only 
slightly sloping from the antherid-zone to the middle, where 
