Compilation
Polypodium hexagonopterum

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Name

Identification
Polypodium hexagonopterum Michx. [family POLYPODIACEAE ] (stored under name); Verified by Not on sheet, Polypodium indet. Not on sheet [family POLYPODIACEAE ] Verified by Smith, Sir James Edward, Phegopteris hexagonoptera (Michx.) Fee [family THELYPTERIDACEAE ] Verified by Rhoads, A.,
Related name
  • Polypodium hexagonopterum
  • Polypodium indet.
  • Polypodium sp.
  • Phegopteris hexagonoptera
  • Polypodium phegopteris
Common name
  • phégoptère à hexagones, Flora of North America Vol. 2
  • southern beech fern, Flora of North America Vol. 2
  • Broad beech fern, Flora of North America Vol. 2

Flora

Entry for Phegopteris hexagonoptera (Michaux) Fée [family THELYPTERIDACEAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 2,
Names
Phegopteris hexagonoptera (Michaux) Fée [family THELYPTERIDACEAE], 5: 242. 1852
Polypodium hexagonopterum Michaux [family POLYPODIACEAE], Fl. Bor.-Amer., 2: 271. 1803
Dryopteris hexagonoptera (Michaux) C. Christensen [family DRYOPTERIDACEAE]
Thelypteris hexagonoptera (Michaux) Nieuwland [family THELYPTERIDACEAE]
Treatment Author(s)
Alan R. Smith
Information
Stems long-creeping, 2--4 mm diam. Leaves monomorphic, dying back in winter, often 1--2 cm apart, ca. 25--75 cm. Petiole straw-colored, (7--)20--45 cm × 1.5--3 mm, at base with scales tan, lanceolate, glabrous or marginally hairy. Blade broadly deltate, about as broad as long, (8--)15--33 cm, proximal pinnae longest and narrowed at base, usually spreading or slightly ascending. Pinnae 7--20 × 2--6(--8) cm, all connected by wing along rachis, deeply pinnatifid; segments entire or largest pinnatifid about halfway to costule; proximal pair of veins from adjacent segments meeting margin above sinus, veins often forked. Indument abaxially of moderately to densely set hairs mostly 0.1--0.25 mm along costae and veins, also of yellowish stalked glands 0.1 mm on veins and blade tissue, costae with whitish to light tan, narrowly lanceolate, spreading, marginally hairy scales to ca. 1.5 mm. Sori subterminal on veins. 2 n = 60.
Altitude range
0--1000 m
Distribution
USA Ala.USA Ark.USA Conn.USA Del.USA D.C.USA Fla.USA Ga.USA Ill.USA Ind.USA IowaUSA Kans.USA Ky.USA La.USA MaineUSA Md.USA Mass.USA Mich.USA Minn.USA Miss.USA Mo.USA N.H.USA N.J.USA N.Y.USA N.C.USA OhioUSA Okla.USA Pa.USA R.I.USA S.C.USA Tenn.USA Tex.USA Vt.USA Va.USA W.Va.USA Wis.Canada Ont.Canada Que.
Discussion
G. A. Mulligan and W. J. Cody (1979) reported hybrids between Phegopteris hexagonoptera and P. connectilis from a few localities in Quebec, New Brunswick, and Nova Scotia. These hybrids are apogamous and have a chromosome number of 2 n = 120.

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