3*3] FLORA or COLUMBIA AND VICINITY 8 1 



9. OHEILANTHES Swartz. Lip-fern. 



12. O. lanuginosa Nutt. [C. gracilis (Fee) Mett.; C. F^ei 

 Moore]. Woolly lip-fern. 



Dry cliffs of Hinkson creek and the Missouri; also at the 

 Pinnacles; local. 



Minnesota to British Columbia; West Virginia to Ari- 

 zona. 



10. ADIANTUM L. Maiden-hair fern. 



13. A. pedatum L. Common maiden-hair. 

 Oak forests; frequent. 



Nova Scotia to Alaska; Georgia to California: Eastern 

 Asia. 



Order 2. OPHIOGLOSSALES. 



Family 2. OPHIOGLOSSACEAE Presl. Adder's tongue 

 family. 



11. OPHIOGLOSSUM L. Adder's tongue. 



14. O. vulgatum L. Common adder's tongue. 



Very rare in thickets south of the University golf-links. 

 The only specimen in the herbarium has the frond mucro- 

 nate at the apex as in 0- Engelmannii Prantl, but the areolae 

 and veinlets resemble closely those of plants gathered at 

 Manistee, Michigan, which belong unquestionably to 0. vul- 

 gatum L. 



North America: Europe and Asia. 



12. BOTRYOHIUM Swartz. Moonwort. 



15. B. Virginianum (L.) Swartz. Virginia grape-fern. 

 Rich oak woods; frequent. 



Nova Scotia to British Columbia; Florida to Cali- 

 fornia: Europe and Asia. 



