Autrrtnut 3fmt Jxutrual 



Vol.3 NOVEMBER-DECEMBER, 1913 No. 4 



The Ferns of Washington 



T. (/. FRYE AND MABEL Mi MURKY JACKSON 



(Continued from American Fern Journal, Vol. 3, No. 3, page 83, 



September 1913.) 



OPHIOGLOSSOI. Adder's-toxi.te Family. 



Plants simple. Spore-leaf and foliage-leaf apparently 

 with a common petiole below. Sporangia naked, in a 

 spike or a panicle, opening at maturity by a transverse 



slit Spores many, yellow. Thallus subterranean, 

 without green. 



Key to thf. Gknkba 



A. Foliage-leaf simple; veins netted. Ophioglobbum (p. 97) 



AA. Foliage-leaf pinnately or ternately divided or compounded; veini 

 free. Botrychium (p. 98) 



OPHIOGLOSSUM. Adlkr's-tongue. 



Plants rather fleshy; rootstoeks erect, fleshy or 

 tuberous. Foliage- and spore-leaf simple (ours) ; spore- 

 leaf spike-like. Sporangia cohering along the 2 edges 

 of the spike. Spores many, sulphur-yellow. (Greek 

 ophis = a serpent, glossa = tongue; from the resemblance 

 of the spore-bearing spike.) We have only the follow- 

 ing species: 



1. Ophioglossim vjtlqatvm L. (PL 6, /. 1.) 



Foliage-leaf entire, thin, ovate to elliptic, often ob- 

 lanceolate, 1-4 inches long, narrowed at base, obtuse, 



[Xo. 3 of the Journal (3| 05-96) was issue I August 30, 1913.1 



97 



