Thelypteridaceae - marsh fern family
[information to be added]
Maine is home to 6 species in 3 genera (hybrids excluded). If you know which species you have or are interested in learning about, click on the appropriate link from the species list below. Otherwise, to determine which genus your fern belongs to, refer to the table 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 palustris |
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).