510 BOTANICAL SURVEY OF DISMAL SWAMP REGION. 



on the spot, and concerning the identity of which there could be no 

 reasonable doubt. Numbers 1 to 115, denoted by the initials " C. & 

 K," were collected by Mr. Frederick V. Covilleand the author. 



THALLOPHYTA. 



FUNGI.' 



Exobasidium discoideum Ellis. In the Dismal Swamp, May 1, on Azalea vis- 



cosa L. 

 Coleosporium sonchi-arvensis (Pers.) Liv. Virginia Beach, Oct. 2, on leaves 



of Solidago sempervirens L. 



LICHENES.* 



Usnea angulata Ach. Near Pungo, Princess Anne County (No. 1159), on the 



bark of Pi hum taeda L. 

 TJsnea barbata rubiginea Michx. With the preceding (No. 1159a). 

 Usnea barbata serotina Schaer (?). With the preceding (No. 1159b). 

 Usnea trichodea Ach. With the preceding and on the branches of Taxodium 



distichnm L. 



BRYOPHYTA. 



HEPATICAE.' 



Odontoschism^ sphagni Dumort. Margin of Lake Drnmmond, July 14 (No. 



1672). on bases of tree trunks, with I'lugiofheeium micaus Sw. 

 Riccia fluitans L. Floating near thesnrfaceof ponds, common (Nos. 1344, 1681). 

 Trichocolea tomentella Dumort. Stumps, old logs, etc., in the Dismal Swamp 



(Nos. 1640, 1641a). 



MIJSCI. 



SPHAGNACEAE. 4 



Sphagnum brevicaule Warnstorf sp. now Near Newbern, N. C, Aug. I (No. 



1977) , in a small open bog. 

 Sphagnum cuspidatum plumosum f. serrata Warnstorf. In the.Ierirho Ditch, 



Dismal Swamp, July 15 (No. 1676), entirely submersed. 

 Sphagnum cymbifolium glaucescens Russ. In the Dismal Swamp and in 



swales in the Desert, Cape Henry, July 14, 27 (Nos. 1673, 1861a). 

 Sphagnum cymbifolium glaucescens Russ. f. squarrulosa Warnstorf. With 



the preceding (Nos. 1675, 1860). 

 Sphagnum henryense Warnstorf, sp. nov. In a swale in the Desert, Cape 



Henry, July 27 (No. 1861). 

 Sphagnum imbricatum cristatum Warnstorf f. glaucescens Warnstorf. Near 



Newbern, N. C, Aug. 1 (No. 1975). 

 Sphagnum kearneyi Warnstorf, sp. nov. In the Jericho Ditch. Dismal Swamp, 



July 15 (No. 1677), all but the summits of the stems submersod, stems some- 

 times 4.5 dm. long. 



1 Determined by Mrs. Flora W. Patterson. 

 4 Determined by Mr. T. A. Williams. 

 a Determined by Mr. O. F. Cook. 



4 Determined by Dr. C. Warnstorf. See Hedwigia, vol. 39, pp. 101 to 109 (1900), 

 for descriptions of the new species. 



