512 BOTANICAL SURVEY OF DISMAL SWAMP REGION. 



POL YPODI ACE AE. ' 



Polystichura acrostichoides (Michx. ) Schott. Near Suffolk (No. 12:57) and at 



Virginia Beach, in rich woods. 

 Dryopteris spinulosa dilatata (Hoffin.) Underw. Margin Lake Drummond, 



Dismal Swamp (No. 108, C. & K.). 

 Woodwardia areolata (L.) Moore. Common in bogs and swamps (Nos. 1625, 



2130, 2360). 

 Woodwardia virginica (L.) J. E. Smith. Common in open swamps (Nos. 1 l."il, 



1351, 1591, 1678.) 

 Asplenium filix-foemina (L. ) Bernh. Near Virginia Beach, May 2!) (No. 1410), 



in rich woods. 

 Pteris aquilma L. ' Common, especially in low ground. 

 Pellaea atropurpurea (L.) Link. On brick walls, in Norfolk. 

 Polypodium polyodioides (L. ) Hitchcock. Abundant on the limbs of Taxo- 



dium distichum L., in the Dismal Swamp (No. 113 C. & K.). 



LYCOPODIACEAE. 



Lycopodium alopecuroides L. In marshy places, Newbern, N. C, Ang. 1 (Nos. 



1930, 1973). 

 Lycopodium inundatum L. In open, marshy places: Northwest (No. 1539) and 



Cape Henry {No. 1825). 



SELAGINELLACEAE. 



Selaginella apus (L.) Spring. In a shady swamp, Eden ton, N. C, July 30 

 (No. 1918). 



EMBRYOPHYTA. 



GYMNOSPERMAE. 



PINACEAE. 



Pinus 2 echinata Mill. Near Suffolk (No. 1232): Lynnhaven Bay (No. 1843). 



Locally known as " rosemary pine," which is said to be the popular name of 



P. taeda in North Carolina. ' 

 Pinus taeda L. Everywhere (Nos. 4 and 99, C. & K., 1003, 1060, 11(10, 1745, 1806). 



Locally known as " short-leaf pine." 

 Taxodium distichum L. Common in swamps and along streams (Nos. 1157, 



1916. 2077, 2361). 

 Chamaecyparis thyoides (L.) B. S. P. Abundant in parts of the Dismal Swamp 



(Nos. 87 C. & K., 1600, 1663). Locally known as "juniper." 

 Juniperus virginiana L. Common in woodlands and on roadsides in dry soil 



(Nos. 1176, 1724). 



'For an account of the ferns of the Dismal Swamp see W. Palmer, in Proc. 

 Biol. Soc. Washington, vol. 13, pp. 61 to 70, 1899. The following species, not included 

 here, are enumerated in that paper: Oiioclea sensibilis L., Dryopteris noveboracen- 

 sis (L.) A. Gray, Dryopteris thelypteris (L.) A. Gray, Dryopteris goldieana celsa 

 Palmer. Dryopteris marginalis (L. ) A. Gray, Dryopteris spinulosa (Retz) Kuntze, 

 Asplenium plat ip i eur on. (L.) Oakes, and Botrychium obliquum Muhl. Interesting 

 observations are given concerning the distribution and ecology of the species. 



-Pinus determined by Mr. G. B. Sud worth. 



:: Ashe, Bull. N. C. Geolog. Surv.. vol. 5, p. 15 (1894). ''Short-leaf pine" is there 

 given as the popular name for 1'. echinata. 



