Dec, 1909.] The Orchids of Ohio. 35 



basal, broad petiolecl, developed in autumn or late summer; 

 flowers in a terminal raceme, the pedicels subtended by small 

 bracts; lip clawed, somewhat 3-ridged, spur none. 



1. Aplectrum spicatum (AValt.) B. S. P. Putty-root. Scape 

 glabrous, 12-24 in. high, bearing about 3 sheathing scales; 

 leaf arising from the corm, at the side of the scape, 4-63^ in. 

 long, 1-2 3^ in. wide, usually lasting over winter; raceme 

 2-4 in. long, loosely several-flowered; lip shorter than the 

 petals, obtuse, somewhat 3-lobed and undulate. A tall 

 plant with vellowish brown or green flowers, with 1 broad 

 leaf that usually lasts over winter, growing in woods and 

 swamps. Hamilton, Green, Montgomery, Preble, Stark, 

 Adams, Warren, Portage, Auglaize, Sandusky, Franklin, 

 Lake, Clermont, Gallia, Erie and Clarke Counties. 



Corallorhiza R. Br. 



Scapose herbs, with mycorrhiza or root parasites, with large 



masses of coralloid branching roots, the leaves all reduced to 



sheathing scales; flowers in terminal racemes; lip 1-3 ridged; 



sepals nearty equal, the lateral ones united at the base with the 



foot of the column forming a short spur or gibbous protuberance 



adnate to the summit of the ovulary. 



1. Lip deeply 3-lobed, white, spotted with red C. multiflora 



1. Lip 2-too'thed or 2-lobed above the base, white, not spotted. (No 

 locality known) C. corallorhiza 



1 . Lip entire or merelj- denticulate 2 



2. Flowers about }4 in. long, lip whitish C. odontorhiza 



2. Flowers about 3^ in. long, lip white, spotted with red. ..C. wisteriana 



1. Corallorhiza odontorhiza (Willd.) Nutt. Small-flowered Coral- 



root. A purplish slender scape 6-14 in. high, bearing 3-5 

 sheathing scales; raceme 2-4 in. long, of 6—20 purplish 

 flowers; lip, broadly oval or obovate, entire or denticulate, 

 narrowed at the base, not notched. A bare looking plant 

 growing under trees. Erie, Cuyahoga, Stark and Madison 

 Counties. 



2. Corallorhiza wisteriana Conrad. Wister's Coral-root. Stem 



8-16 in. high, bearing several sheathing scales; raceme 2—4 

 in. long, loose, 6-15 flowered; lip broadly oval or obovate, 

 4-5 lines long and wide, abruptly clawed, white with crim- 

 son spots, crenulate, notched at the apex, spur a somewhat 

 conspicuous protuberance adnate to the top of the ovulary. 

 A tall stout plant with scaly stem growing in shady woods. 

 Hamilton Covmty (New York Botanical Gardens). 



3. Corallorhiza muitiflora Nutt. Large Coral-root. Stem 8—20 



in. high, bearing several appressed scales, purplish; a 

 raceme of brownish purple flowers w^ith short pedicels; lip 

 oval or ovate, deeply 3-lobed, the middle lobe broader 

 than the lateral ones, its apex curved. A tall bare looking 

 plant growing in woods. Erie, Huron, Fairfleld and 

 Franklin Counties. 



