1 PTERIDOPHYTES ?D. celsa (W.Palmer) Knowlton D. goldiana (Hook.) A.Gray. Goldie’s w. f. ♦ ASPLENIACEAE. The Spleenwort Family. D. intermedia (Muhl. ex Willd.) A.Gray. Evergreen w. f. !D. ludoviciana (Kunze) Small. Southern w. f. Asplenium L. Spleenwort. D. marginalis (L.) A.Gray. Marginal w. f. A. bradleyi D.C.Eat. Bradley’s s. A. montanum Willd. Mountain s. Onoclea L. A. pinnatifidum Nutt. Lobed s. O. sensibilis L. Sensitive fern. A. platyneuron (L.) BSP. Ebony s. A. resiliens Kunze. Black-stalked s. Polystichum Roth. A. rhizophyllum L. Walking fern. P. acrostichoides (Michx.) Schott. Christmas fern. A. ruta-muraria L. Wall-rue. A. trichomanes L. Maidenhair s. Woodsia R. Br. Cliff fern. W. obtusa (Spreng.) Torr. Blunt c. f. ♦ AZOLLACEAE. The Mosquito Fern Family. !W. scopulina D.C.Eaton. Mountain c. f. Azolla Lam. ♦ EQUISETACEAE. The Horsetail Family. A. caroliniana Willd. Mosquito fern. ?A. mexicana C.Presl. Equisetum L. Horsetail, scouring-rush. E. arvense L. Field h. ♦ BLECHNACEAE. The Chain Fern Family. E. Xferrissii Clute. E. hyemale L. Common s.-r. Woodwardia Sm. Chain fern. W. areolata (L.) T.Moore. Netted c. f. ♦ HYMENOPHYLLACEAE. The Filmy Fern Family. ♦ DENNSTAEDTIACEAE. The Bracken Family. Trichomanes L. Bristle fern. T. boschianum Sturm. Appalachian b. f. Dennstaedtia Bernh. T. intricatum Farrar. Appalachian trichomanes. D. punctilobula (Michx.) T.Moore. Hay-scented fern. ♦ ISOETACEAE. The Quillwort Family. Pteridium Gled. ex Scop. P. aquilinum (L.) Kuhn. Bracken fern. Isoetes L. Quillwort. var. latiusculum (Desv.) Underw. ex A.Heller !I. butleri Engelm. Butler’s q. var. pseudocaudatum (Clute) A.Heller I. engelmannii A.Braun. Engelmann’s q. !I. melanopoda Gay & Durieu ex Durieu. Black-footed q. ♦ DRYOPTERIDACEAE. The Wood Fern Family. ♦ LYCOPODIACEAE. The Club-moss Family. Athyrium Roth. A. filix-femina (L.) Roth. Lady fern. Huperzia Bernhardi. Fir-moss, Club-moss. subsp. asplenioides (Michx.) Hultén H. lucidula (Michx.) Trevis. Shining f.-m. H. porophila (F.E.Lloyd & Underw.) Holub. Rock c.-m. Cystopteris Bernhardi. Bladder fern. C. bulbifera (L.) Bernhardi. Bulblet b. f. Lycopodiella Holub. Bog club-moss. C. protrusa (Weath.) Blasdell. Southern b. f. L. alopecuroides (L.) Cranfill. Foxtail b. c.-m. C. tennesseensis Shaver. Tennessee b. f. !L. appressa (Chapm.) Cranfill. Appressed b. c.-m. C. tenuis (Michx.) Desv. Mackay’s brittle fern. !L. inundata (L.) Holub. Northern b. c.-m. Deparia Hooker & Greville. Lycopodium L. Club-moss D. acrostichoides (Sw.) M.Kato. Silvery glade fern. ?L. annotinum L. ?L. carolinianum L. Diplazium Sw. !L. clavatum L. Running c.-m. D. pycnocarpon (Spreng.) M.Broun. Narrow-leaved glade fern. L. digitatum Dill. Southern running-pine. L. hickeyi W.H.Wagner, Beitel, & Moran. Hickey’s c.-m. Dryopteris Adanson. Wood fern. L. obscurum L. Tree c.-m. !D. carthusiana (Vill.) H.P.Fuchs. Spinulose w. f. L. tristachyum Pursh. Blue ground-cedar. 2 C. lanosa (Michx.) D.C.Eaton Hairy l. f. ♦ LYGODIACEAE. The Climbing fern family. Pellaea Link. Cliffbrake. Lygodium Sw. P. atropurpurea (L.) Link. Purple c. L. palmatum (Bernh.) Sw. Climbing fern. P. glabella Mett. ex Kuhn. Smooth c. ♦ MARSILEACEAE. The Water-Clover Family. ♦ SELAGINELLACEAE. The Spike-moss Family. Marsilea L. Selaginella P. Beauv. Spike-moss. *M. quadrifolia L. Water-clover. S. apoda (L.) Spring. Meadow s.-m. ?S. rupestris (L.) Spring. ♦ OPHIOGLOSSACEAE. The Adder’s-tongue Family. ♦ THELYPTERIDACEAE. The Marsh Fern Family. Botrychium Swartz. Grape fern. B. biternatum (Savigny) Underw. Sparse-lobed g. f Phegopteris (C.Presl) Fée. B. dissectum Spreng. Dissected g. f. P. hexagonoptera (Michx.) Fée. Southern beech fern. B. lanceolatum (S.G.Gmel.) Ångstr. Lance-leaved g. f. !B. matricariifolium (Döll) A.Braun. Daisy-leaf moonwort. Thelypteris Schmidel. !B. oneidense (Gilbert) House. Blunt-lobed g. f. †T. dentata (Forsskal) E.P.St.John. B. virginianum (L.) Sw. Common g. f., rattlesnake fern. T. noveboracensis (L.) Nieuwl. New York fern. T. palustris Schott. Marsh fern. Ophioglossum L. Adder’s-tongue. var. pubescens (Lawson) Fernald. O. engelmannii Prantl. Limestone a.-t. O. pusillum Raf. Northern a.-t. ♦ VITTARIACEAE. The Shoestring Fern Family. O. vulgatum L. Southern a.-t. Vittaria Sm. ♦ OSMUNDACEAE. The Royal Fern Family. V. appalachiana Farrar & Mickel. Appalachian shoestring fern. Osmunda L. CONIFEROPHYTA O. cinnamomea L. Cinnamon fern. O. claytoniana L. Interrupted fern. ♦ CUPRESSACEAE. The Cypress Family. O. regalis L. Royal fern. Juniperus L. Juniper, red-cedar. ♦ POLYPODIACEAE. The Polypody Family. !J. communis L. Common j. J. virginiana L. Eastern r.-c. Pleopeltis Humboldt & Bonpland ex Willdenow. P. polypodioides (L.) E.G.Andrews & Windham. Resurrection fern. Platycladus var. michauxiana (Weath.) E.G.Andrews & Windham. †P. orientalis (L.) Franco Polypodium L. Polypody. Taxodium Rich. P. appalachianum Haufler & Windham. Appalachian p. T. distichum (L.) Rich. Bald-cypress. var. distichum P. virginianum L. Rock p. Thuja L. ♦ PTERIDACEAE. The Maidenhair Fern Family. !T. occidentalis L. Northern white cedar. Adiantum L. Maiden-hair fern. ♦ PINACEAE. The Pine Family. A. capillus-veneris L. Southern m.-h. f. A. pedatum L. Northern m.-h. f. Picea A.Dietr. †P. abies (L.) H.Karst. Norway spruce. Argyrochosma (Sm.) Windham. A. dealbata (Pursh) Windham. Powdery cloak fern. Pinus L. Pine. P. echinata Mill. Short-leaf p. Cheilanthes Swartz. Lip fern. †P. nigra J.F.Arnold !C. alabamensis (Buckley) Kunze. Alabama l. f. P. rigida Mill. Pitch p. !C. feei T.Moore. Slender l. f. P. strobus L. White p. 3 †P. sylvestris L. Scots p. †P. taeda L. Loblolly p. P. virginiana Mill. Virginia p. Tsuga Carrière. T. canadensis (L.) Carrière Eastern hemlock. ♦ TAXACEAE. The Yew Family. Taxus L. †T. baccata Siebold & Zucc. !T. canadensis Marshall. Canadian yew. .