34 The Ohio Naturalist. [Vol. X, No. 2, 



spreading flowers with slender pedicels ; lip broad, 2-lobed at 

 the apex, with a small tooth in the sinus. A slender plant 

 with raceme of delicate flowers growing in woods and 

 thickets. Fairfield County. 



Leptorchis Thouars. 



Low herbs with solid bulbs, the base of the stem sheathed bv 

 several scales and 2 broad, shining leaves, flowers in a terminal 

 raceme; lip nearly flat, often bearing 2 tubercles above the base. 



1. Lip brownish-purple, |-3^ in. long; raceme loose-flowered, 1-2 in. 



wide L. liliifolia 



1. Lip yellowish-green, -J -34 in. long: raceme compact, aijout 3^ in. wide. 



L. loeselii 



1. Leptorchis liliifolia (L.) Ktz. Large Twayblade. Stem a 



scape, striate, -i-lO in. high; leaves 2-4^ in. long, oval or 

 ovate, keeled below; numerous showv' flowers, in a raceme 

 sometimes 6 in. long; lip conspicuous, erect, 5-6 lines long, 

 wedge-obovate. A delicate show}" plant, growing in moist 

 woods and thickets. Portage, Franklin, Fairfield and 

 Clarke Counties. 



2. Leptorchis loeselii (L.) MacM. Fen Twayblade. Scape 2-8 in. 



high, strongly ribbed; leaves elliptic or elliptic-lanceolate, 

 2-6 in. long; flowers few, greenish, smaller than the preced- 

 ing, in a raceme; lip obovate, pointed, its tip incurved. A 

 tall plant, with greenish inconspicuous flowers, in wet 

 thickets and on spring}^ banks. Champaign, Cuyahoga, 

 Summit, and Stark Counties. 



Tipularia Nutt. 



Slender scapose herbs with solid bulbs, several generations 

 connected by offsets; the flowers in a long, loose, terminal 

 raceme; leaf solitary, basal, unfolding long after the flowering 

 season, usually after the scape has perished; scape with several 

 thin sheathing scales at the base; flowers green, nodding, bract- 

 less; lip 3-lobed with a long slender spur. 



1. Tipularia unifolia (Muhl.) B. S. P. Crane-fly Orchis. Scape 

 glabrous 16-2U in. high, from a hard, often irregular corm; 

 leaf arising in Avitumn from a fresh lateral corm, ovate, 

 2-2% in. long, dark green; raceme 5-9 in. long, very loose, 

 flowers green tinged with purple; lip inostly shorter than 

 the petals, the middle lobes narrow, prolonged, dilated at 

 the apex, the lateral lobes short, triangular; spur often 

 twice as long as the flower. A tall slender plant with a 

 loose raceme of nodding flowers, growing in woods. Lorain, 

 and Cuyahoga Counties (Oberlin College.) 



Aplectrum Nutt. 



Scapose herbs from a corm, produced from the one of the 

 previous season by an offset and sometimes with coralloid fibres, 

 the scape clothed with several sheathing" scales; leaf solitary, 



