314 OHIO BIOLOGICAL SUEVEY 



Iridales. 

 Amaryllidaceae, Amaryllis Family. 

 Hypoxis hirsuta (L.) Coville. Yellow Star-grass. 



Iridaceae, Iris Family. 



Iris versicolor L. Large Blue Flag. Common iu the marshes aroimd Lancaster. 



No specimen. 

 Iris cristata Ait. Crested Dwarf Iris. A few stations, especially at the tops of 



waterfalls, e. g., at the Eock Bridge, in the southern section of the area. 

 Sisyrinchium graminoides Bick. Blue-eyed Grass. No specimen. 



Dioscoreaceae, Yam Family. 

 Dioscorea villosa L. Wild Yam. No specimen. 



Orchidales. ■ 



Orchidaceae, Orchid Family. 



Fissipes acaulis (Ait.) Siu. (Cypripedium). Stemless Lady-slipper. On the edge 



of its range, common on the uplands, but not nearly so abundant as in other 



parts of its range. 

 Cypripedium roginae Walt. (C. speetabile, C. hirsutum). Showy Lady 's-slipper. 



Fide Bigelow. Almost certainly extinct now. 

 Cypripedium parviflorum var. pubescens (Willd.) Knight. (C. hirsutum). Yellow 



Lady 's-slipper. Occasional in the Liriodendron forest. 

 Galeorchis spectabilis (L.) Eydb. (Orchis). Showy Orchid. 

 Perularia flava (L.) Eydb. (f) Fide Bigelow. Queried by Bigelow. 

 Lysias orbieulata (Pursh) Eydb. (Habenaria). Large Eound-leaf Orchid. Fide 



Bigelow. Known only from three other counties. 

 Blephariglottis lacera (Mx.) Farw. (Habenaria). Lacerate Orchid. A few indi- 

 viduals only in Stukey 's Swamp. T have not been able to find any since the 



lumbering of 1912. 

 Blephariglottis peramoena (Gr.) Eydb. Fringeless Purple Orchid. Occasional in 



the Liriodendron forest in the southern portion of the area. Not seen around 



Sugar Grove. 

 Pogonia ophioglossoides (L.) Ker. Eose Pogonia. Fide Bigelow. Not now known 



south of Buckeye Lake. 

 Isotria verticillata (Willd.) Eaf. On the edge of its range. Common in the pine 



woods, but never seen in flower and only once in fruit by the writer. 

 Limnodorum tuberosum L. (Calojiogon jnichellus). Only from Buckeye Lake. 

 Ibidium cernua (L.) House. (Gynostachys, Spiranthes). Nodding Lady 's-tresses. 



Common. No specimen. 

 Ibidium beckii (Lidl.) House. (Spiranthes simplex). Little Tiady 's-tresses. A 



single specimen from near Lancaster, J. E. Hyde. The only Ohio station. 

 Ibidium gracilis (Biegl) House. (Spiranthes). Slender Lady 's-tresses. Unlike most 



of the orchids, this plant withstands the clearing of the forest very well and is 



fairly common in pastures and along the road-side. 

 Peramium pubescens (Willd.) MacM. (Goodyera, Epipactis). Downy K'attlesnake 



Plantain. Common but restricted to situations not covered witli autumn leaves. 



