HITCHCOCK — PLANTS OF AMES, IOWA. 5 I (J 



0RCUIDACE.1 



Spiranthes cernua, (L.) Rich. Bot. Reg. — Ophrys cernua, L. 

 Spec. 



Low prairie; infrequent. 



Orchis spkctabilis, L. Spec. 



Springy places in rich woods; scarce. 

 Woods south of College, and reported elsewhere. 



Habenaria bracteata, (Willd.) R.Br, in Ait. f. Hort. Kew. 

 — Orchis bracteata ', Willd. Spec. iv. 

 Rich woods; rare. 



This species seems to be well distributed over the county, but is usually solitary 

 and only occasionally found. 



H. leucophjea, (Xatt.) Gray, Man. oth ed.— Orchis leucofhcea, 

 Xutt. Trans. Amer. Phil. Soc. N. S. vii. 1S41. 

 Low prairie: infrequent. 

 Cypripedium can did um, Muhl. in Willd. Spec. iv. 



Low prairie not uncommon. 

 C. pubescexs, Willd. Spec. iv. 

 Rich woods; infrequent. 



Woods west and south of College; on Skunk river, and elsewhere. C. farviflo- 

 rum, Salisb. has been reported, but I doubt if it occurs with us. 



C. kegin.k, Walt. Fl. — C. spectabile, Salisb. Trans. Lin. Soc. i. 1791, 

 (read 178S).— C. album. Ait. Hort. Kew.— C. kirsutum, Mill. Diet? 

 Rich woods; rare. 



On the east side of Skunk river north of Ames, a short distance above the ford. 

 This species was formerly much more frequent, but many causes, not the least of 

 which are the ravages of eager students, have almost exterminated this beautiful 



plant. 



IRIDACE.E. 



Iris versicolor, L. Spec. 



Marshes; common. 

 Belamcanda Chineusis, (L.) Adans.— Ixia Chinrnsis, L. Spec. 

 Occasionally escapes from gardens. 



In the absenceof sufficient literature I have followed the Manual in the authority 

 for the accepted combination. The New York Catalogue gives B. Chinensis , 

 (L. ) Redoute. 



SlSYRIXCHIUM A.NGUSTIFOLIUM, Mill. Dicfc. 

 Prairie; ahundant. 



1 he white-flowered form is frequent. 



A MA R YL L IDA CE. E. 



Hypoxis erect a, L. Spec. 2d ed. (Syst. Xat. 15th ed. ex Richter. 

 Prairie; common. 



DIOSCOREACL.E. 



DlOSCOREA VILL.OSA, L. Spec. 

 Thickets; not uncommon. 



