OPHIOGLOSSA CE^. 



down in vernation ; sterile segment clasping the fertile with its 

 apex overlapping the whole. (Fig. 33.) {B.neglec- 

 tum Wood.) New England, New York, Ohio, and 

 Mt. Peddo, Washington Territory (Suksdorf). 



ft Buds pilose; sterile segments usually long- 

 stalked ; plant larger ', fruiting in autumn. 

 -~5. B. ternatum Swz. Frond fleshy, the 

 common stalk very short ; sterile segment 

 broadly pentagonal or triangular, ternate ; the 

 three primary divisions also stalked, as broad 

 as long, pinnately decompound ; ultimate divi- 

 sions varying from round-reniform to triangu- 

 lar-lanceolate, entire or variously toothed and 

 incised ; fertile segment long-stalked, bi quad- 

 ripinnate. Apex of both segments bent down, 

 with a slight curve inward in vernation. (Fig. 

 34.) (B. australe R. Br., B. lunar ioides Swz., 

 B. fumarioides Willd., B. decompositum Mart, 

 and Gale., Osmunda ternata Humb., Botrypus 

 lunar ioides Michx.) Very variable ; larger 

 forms (6' 17' his:h), with more compound fruc- * ion < 



caricefolium A. Br. 



tification and with divisions of sterile segment ob- (After Davenport.) 

 yaz,. long or lanceolate and obtuse or oblique at base, 



v/5 -.* are the var. obliquum Milde ; forms with divi- 

 f- 'v\S*i sions of the sterile segment lacin lately cut into 

 I \^". ^.narrow teeth are var. dissectiim Milde. New 

 England and Canada, westward to California, 

 Washington Territory, British Columbia, and 

 southward to Florida. 

 *** Vernation wholly inclined, in the fertile 



segment recurved. 



** 6. B. lanceolatum Angs. Plant 3' 9' 

 high, somewhat fleshy ; sterile segment closely 

 sessile at the top of a long common stalk, in 

 the smallest forms three-lobed, in larger ones 

 broadly triangular, twice pinnatifid, the divi- 

 sions lanceolate, entire or toothed, all set at an 

 oblique angle ; fertile segment short-stalked, 

 slightly overtopping the sterile, bi tripinnate. Bud smooth; 



tion of 



3. Verna- 



fnatri- 



Vtf 



FIG. 34. Vernation 

 of B. iernatunt Swz. 

 (After Davenport.) 



