OPHIOGLOSSACEAE. 



VOL. I. 



3. Botrychium onondagense Underw. 

 Underwood's Moonwort. Fig. 6. 



Botrychium onondagense Underwood, Bull. Torr. Club, 

 30: 47. 1903. 



Leaves 4'-oT long, slender, the common stalk slen- 

 der, rather weak and spreading, 3 / -4i / long, nearly 

 all above ground, the sterile blade bent over in the 

 bud only at the apex, clasping the nearly erect sporo- 

 phyl. Sterile blade oblong, often narrowly so, t'-ii' 

 long, distinctly stalked (up to I'), pinnately divided 

 into 3 to 4 (casually 7) pairs of mostly distant 

 broadly cuneate subentire to flabellately lobed seg- 

 ments; sporophyl i'-i' long, mostly 2-pinnate, borne 

 upon a slender stalk i'-ii' long. 



On shaded rocky slopes, near Syracuse, New York. 

 Also in Montana and northern Michigan. 



4. Botrychium tenebrosum A. A. Eaton. 

 Eaton's Grape-fern. Fig. 7. 



Botrychium tenebrosum A. A. Eaton, Fern Bull. 7: 8. 1899. 



Leaves i'-o/ long, slender, delicate and lax, shining, 

 light or yellowish green, eventually decumbent and 

 stramineous, the common stalk very long, usually more 

 than half the length of the plant; buds rather small, 

 the sporophyl erect, the tip of the sterile blade slightly 

 inclined. Sterile blade short-stalked, simple, lobed, or 

 usually with 1-3 pairs of distant, alternate, lunulate or 

 cuneate, decurrent, usually entire segments, the apex 

 emarginate ; sporophyl short-stalked, simple or rarely a 

 little branched, flattened, the large sporangia somewhat 

 immersed in rows or groups on either side. 



In rich moist woods and swamps, New York and New 

 England. 



5. Botrychium neglectum Wood. 

 Wood's Grape-fern. Fig. 8. 



Botrychium neglectum Wood, Class Book Bot. ed. 2, 



635. 1847. 

 B. matricariaefolium of most American writers. 



Leaves 2 f -i2 f long, often very fleshy, erect, bright 

 green, the common stalk relatively stout, nearly all 

 above ground, devoid of sheathing bases of previous 

 years; buds stout, the sporophyl and sterile blade 

 both bent over at the tip, the latter enfolding the 

 former. Sterile blade short-stalked, i'-2|' long, ob- 

 long, ovate or deltoid-ovate, acute, pinnate or deeply 

 2-pinnatifid, the segments oblong or ovate, obtuse, 

 crenately lobed or divided, the divisions ovate- 

 oblong ; sporophyl 2-3-pinnate, with terete branches, 

 the sporanges sessile or short-stalked. 



In grassy woods and swamps. Nova Scotia to Mary- 

 land, west to South Dakota and Nebraska. Also in 

 Washington and in Europe. May-June. 



