Dales 
A. filix-femina (L.) Roth var. michauxii 
(Spreng.) Farw. (var. michauxii Mett.) Lady Fern 
Ivy Neck. One station: mature stand of Pinus taeda on Cheston 
Peninsula. Hectare 5719. Higman 1103. 
A. filix-femina var. michauxii form rubellum Farw. 
(A. angustum var. rubellum Butters) 
Java Farm. One station: along Muddy Creek entrance road, at 
culvert of small tributary of Muddy Creek. Hectare 2497. Canopy 
of Platanus occidentalis. Higman 480. 
A. filix-femina var. asplenioides (Michx.) Farw. 
(A. asplenioides A. Eaton) 
Java Farm. One station: floor of tributary valley of Muddy 
Creek, slightly upstream from Hog Island salt marsh. Hectare 3530. 
Canopy of Fagus grandifolia, Quercus alba, Liriodendron tulipifera, 
Liquidambar styraciflua. Higman 456. 
Dryopteris 
1. Rhizome slender, forking, long; fronds thin, annual, scat- 
tered; stipe slender, naked or with scales 1-6 mm. long. 
2. Fronds long-lanceolate, with 17 to 46 pairs of pinnae 
the lowest pinnae shorter than to equalling the 
middle ones. 
3. Lateral veins of segments of sterile fronds 
forking; indusia glabrous or long-ciliate, 
NOt glandular.....csccscecesccerecsccveccrseceee De thelypteris 
3. Lateral veins of segments of sterile fronds 
simple; indusia finely glandular-ciliate, 
(Also, 23) to) 46. pairs of pinnae) a.) ..00, cece vel eerciene Dy NOVeEbOracensiuls 
2. Fronds triangular to triangular-ovate, simple or 
with 8-30 pairs of pinnae, the lowest pinnae longest. 
Expected (D. hexagonoptera). See Appendix I, p. 228. 
1. Rhizome stout, short; fronds firm to evergreen, forming 
terminal crowns; stipe stout, with abundant basal 
scales .5-3.5 cm. long. (Also, lowest pinnae mostly 
over 2 cm. long and 1 cm. wide; indusia not overlapping). 
4, Frond tripinnate or tripinnatifid, firm, evergreen; 
teeth’ of frond segments bristle-tipped.... 0... 0 Ds idilatata 
4, Frond bipinnate or bipinnatifid, firm to leathery, 
deciduous; teeth of segments not bristle-tipped. 
(Also, sori not marginal; fertile fronds much 
taltervand marrower than ‘the ‘sterile).). 0... -.1.0. De Crastata 
