Lycopodiaceae of Maine
(Kingdom Plantae, Lycophytes)


a project of
V. F. Thomas Co. - P. O. Box 111 - Shawmut, Maine  04975
info@vfthomas.com


(updated 26 January 2020)



Lycopodiaceae - clubmoss family
[information to be added]

Maine is home to 14 species in 5 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 belongs to, refer to the table immediately below the species list.
   Dendrolycopodium (3 species)
      Dendrolycopodium dendroideum - prickly tree-clubmoss
      Dendrolycopodium hickeyi - Hickey’s tree-clubmoss
      Dendrolycopodium obscurum - flat-branched tree-clubmoss
   Diphasiastrum (4 species)
      Diphasiastrum complanatum - northern ground-cedar
      Diphasiastrum digitatum - southern ground-cedar
      Diphasiastrum sitchense - Sitka ground-cedar
      Diphasiastrum tristachyum - blue ground-cedar
   Lycopodiella (3 species)
      Lycopodiella alopecuroides - foxtail bog-clubmoss
      Lycopodiella appressa - appressed bog-clubmoss
      Lycopodiella inundata - northern bog-clubmoss
   Lycopodium (2 species)
      Lycopodium clavatum - common clubmoss
      Lycopodium lagopus - one-cone clubmoss
   Spinulum (2 species)
      Spinulum annotinum - interrupted clubmoss
      Spinulum canadense - interrupted clubmoss




red font = character state unique or nearly so upright shoot morphology char. 2 char. 3 char. 4 char. 5 char. 6
Dendrolycopodium conspicuous main axis with repeatedly forked branches
Diphasiastrum conspicuous main axis with repeatedly forked branches
Lycopodiella unbranched
Lycopodium 1–6 branches
Spinulum forked near base


Dendrolycopodium (tree-clubmoss)
[information to be added]

red font = character state unique or nearly so upright shoot main axis trophophyll orientation char. 2 char. 3 char. 4 char. 5 char. 6
D. dendroideum spreading at angle of 45–90°
D. hickeyi diverging at angle of 0–30°
D. obscurum diverging at angle of 0–30°

Dendrolycopodium dendroideum (prickly tree-clubmoss) - [information to be added]
   
(click on an image to enlarge)

Dendrolycopodium hickeyi (Hickey’s tree-clubmoss) - [information to be added]

Dendrolycopodium obscurum (flat-branched tree-clubmoss) - [information to be added]

(click on image to enlarge)


Diphasiastrum (ground-cedar)
[information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
D. complanatum
D. digitatum
D. sitchense
D. tristachyum

Diphasiastrum complanatum (northern ground-cedar) - [information to be added]

Diphasiastrum digitatum (southern ground-cedar) - [information to be added]

(click on image to enlarge)

Diphasiastrum sitchense (Sitka ground-cedar) - [information to be added]

Diphasiastrum tristachyum (southern ground-cedar) - [information to be added]


Lycopodiella (ground-cedar)
[information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
L. alopecuroides
L. appressa
L. inundata

Lycopodiella alopecuroides (foxtail bog-clubmoss) - [information to be added]

Lycopodiella appressa (appressed bog-clubmoss) - [information to be added]

Lycopodiella inundata (northern bog-clubmoss) - [information to be added]


Lycopodium (clubmoss)
[information to be added]

cone number upright shoot branch number trophophyll length trophophyll orientation char. 5 char. 6
L. clavatum (1–)3–5 3–6 4–6 mm spreading to ascending
L. lagopus 1(–2) 1–3(–4) 3–5 mm ascending to appressed

Lycopodium clavatum (common clubmoss) - [information to be added]

(click on image to enlarge)

Lycopodium lagopus (one-cone clubmoss) - [information to be added]


Spinulum (interrupted-clubmoss)
[information to be added]

char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
S. annotinum
S. canadense

Spinulum annotinum (common interrupted-clubmoss) - [information to be added]

Spinulum canadense (northern interrupted-clubmoss) - [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).