rpnilP II FERTILE FRONDS PARTIALLY LEAF-LIKE, 

 UKUUf II FERTILE PORTION UNLIKE REST OF FROND 



mer, but the withered fertile portion may be 

 found upon the plant much later in the year. 

 Its frequent companions are the Spinulose Shield 

 Fern, the Christmas Fern, the Silvery Spleenwort, 

 and the Maidenhair. 



10. TERNATE GRAPE FERN 



Botrychium ternahtm or dissecium 



Nova Scotia to Florida, in moist meadows. A few inches to more 

 than a foot high. 



Sterile portion. — Broadly triangular, the three main divisions cut 

 again into many segments, on a separate stalk 

 from near the base of the plant, fleshy. 



Fertile portion. — Erect, usually considerably 

 taller than non-fruiting segment, more than once- 

 pinnate. 



Of late some doubt has existed as 

 to whether B. ternatum has been act- 

 ually found in this country, although 

 the standard Floras give no evidence 

 of this uncertainty. Dr. Underwood 

 is convinced that the true B. ternatum Sporangia of 



. 1 . T Botrychium 



IS found only in Japan and China, 

 and that our species is really B. dissectum, a spe- 

 cies, not a variety. He says that this species is 

 very common in the vicinity of New York City, 

 and thence southward and westward ; that it is 

 also found in various parts of New England; 

 that it reaches its fullest development in moist, 



8i 



