—9i— 
Wainio’s Monograph adds to this distribution Tennessee and South Caro- 
lina. This gives a general distribution throughout North America, east of 
the Rocky Mountains, except in extreme regions. Known also in Europe, 
where also absent from arctic regions. Plate VIII. Figs, i A and i B. 
Cladonia delicata (Ehrh.) Flk. Clad. Comm. 7. 1828. 
Primary thallus commonly persistent, composed of small laciniate, erose 
or crenate squamules 1-2.5 mm. long and wide, ascending, flat or involute, 
commonly clustered and frequently forming a crust, ashy, sea-green or 
olivaceous above, below white and usually more or less sorediate, the cortex 
continuous above. Podetia arising from the surface of the primary thallus, 
3-10 mm. long .5-1 mm. in diameter, cupless, subcylindrical, clavate or irregu- 
larly turgescent, usually simple or slightly branched at the apex, but rarely 
quite freely branched lower down, the axils, the apices and the sides some- 
times more or less fissured, scattered or clustered, erect, commonly more or 
less sorediate and decorticate, the apices usually apothecia-bearing and 
obtuse, but rarely sterile and subulate. Apothecia small, .3-1.5 mm. in 
diameter, borne in clusters or solitary at the apices of the podetia or branches, 
thinly margined or immarginate, flat or convex, brown or rarely reddish- 
brown. Hypothecium pale or pale-brownish. Hymenium brownish and 
darker above. Paraphyses simple or branched, the apices frequently 
thickened and pale-brownish. Asci clavate or cylindrico-clavate. 
On rotting wood or on earth in swampy places. Examined by the writer 
from Massachusetts (E. A. Burt), Washington, D. C. (T. A. Williams), Ohio 
(H. L. Jones), and from Iowa and Minnesota (Bruce Fink). W. W. 
Calkins and Henry Willey both list it from Illinois, and J. Macoun from 
Quebec and Ontario. Wainio’s Monograph adds Indiana, South Carolina, 
Alabama and Louisiana. This gives a North American distribution very 
similar to that pf the last species. Known in all the grand divisions. Plate 
VIII, Figs. 2 A and 2 B. 
Miami University, Oxford. Ohio. 
Plate VII. — Ptychomitriurn Leibergii n. sp. by Dr. G. N. Best in the Bryol- 
ogist, September, 1906, page 81, should have contained the following mag- 
nifications: Fig. 1. Plant of P. Leibergii X 2. Fig. 2. Same X 22. 
Fig. 3. Leaf X 22. Fig. 4. Base of leaf X 240. Fig. 5. Apex of 
same X 365. Fig. 6. Perichetial bud X 42. Fig. 7. Calyptra X 22. 
Fig. 8. Spores X 650. Fig. 9. Peristomial teeth X 240. All reduced 
The plant was named in honor of Mr. John B. Leiberg, not John F. 
as printed on page 60. Ed. 
