Thelypteridaceae of Maine
(Kingdom Plantae, Monilophytes)


a project of
V. F. Thomas Co. - 167 Thorne Mountain Road - Canton, Maine  04221
info@vfthomas.com


(updated 31 January 2020)


Thelypteridaceae - marsh fern family
[information to be added]

Maine is home to 6 species in 3 genera (hybrids excluded). If you already know which species you have or are interested in learning about, click on the appropriate species link below. Otherwise, to determine which genus that the plant in question falls into, refer to the table immediately below the species list.
   Parathelypteris (2 species)
      Parathelypteris noveboracensis - New York fern
      Parathelypteris simulata - Massachusetts fern
   Phegopteris (3 species)
      Phegopteris connectilis - long beech fern
      Phegopteris excelsior - tall beech fern
      Phegopteris Hexagonoptera - broad beech fern
   Thelypteris (1 species)
      Thelypteris palustris var. pubescens - marsh fern




red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
Parathelypteris
Phegopteris
Thelypteris


Parathelypteris ([?] fern)
[information to be added]

leaf blade shape resin glands on leaf blades indument of rachis, costae, and costules char. 4 char. 5 char. 6
P. noveboracensis elliptic absent up to 1 mm long
P. simulata lanceolate to broad-lanceolate present (red to orange) 0.2–0.4 mm long

Parathelypteris noveboracensis (New York fern) - [information to be added]

(click on image to enlarge)

Parathelypteris simulata (Massachusetts fern) - [information to be added]

Phegopteris (beech fern)
[information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
P. connectilis
P. excelsior
P. hexagonoptera

Phegopteris connectilis (long beech fern) - [information to be added]
      
(click on an image to enlarge)

Phegopteris excelsior (tall beech fern) - [information to be added]

Phegopteris hexagonoptera (broad beech fern) - [information to be added]

Thelypteris (marsh fern)
[information to be added]

Thelypteris palustris (marsh fern) - [information to be added]


Note:
   1. Taxonomy and nomenclature follow Flora Novae Angliae by Arthur Haines (2011, Yale University Press, ISBN 978-0-300-17154-9).