BOTANICAL GAZETTE, 214 



21. Aspkrihim Eilix-fa'mina, Bernh, — Is represented in Arkansas 

 by two varieties : 



1. var. angustiim, growing in the sunny and drier places in swamps 

 and along the banks of creeks in woods. Common. 



2. var. commune is common in wet and shaded places in swamps, 

 and along creeks in shaded woods. 



Both varieties are confined to the S. half of the State, or low 

 country.. 



22. Camptosonis rhizophylli/s, Link. — Plentiful upon shaded lime 

 and sandstone cliffs in N. W. Ark Grows luxuriantly, showing well 

 the pilose apex. The auricles at the base are often found rooted, and 

 with secondary fronds. Fronds from 12 to 15 inches long are not un- 

 common. I have never seen such fine specimens anywhere. 



Tribe Aspidie^e. 



23. Phegopteris hexagonoptcra. Fee. — Abundant upon dry hills and 

 in low ground throughout N. and W. Ark. 



24. Aspidiu/H Novfboracensc, Swartz — Occurs in the swamps about 

 Hot Springs, and probably throughout S. Arkansas. 



25. Aspidium Thelyptcris, Swartz. — Plentiful in bogs abi^ut springs 

 in N. W, Arkansas. 



26. Aspidiii/n crista/itm, Swartz. — Occurs in S. E. Arkansas. We 

 have specimens from near Pine Bluff found growing in swamps by 

 Mr. G. E. Lyde. 



27. Aspidium spinulosum, Swartz. — Said to grow in rich woods by 

 the Botanist of the Ark. Survey. I have not found any specimens. 



28. Aspidium acrostichoides, Swartz. — Plentiful in the elevated re- 

 gions of the State. Found upon the base of shaded cliffs, and on 

 rich alluvial banks in moist situations, also in the swamps of S. Ark. 



29. Aspidium marginale, Swartz. — Quite common upon shaded 

 moist cliffs in the mountains of Ark. Grows very large. Inland and 

 along streams. 



30. Cystopteris fragilis, Bernh. — Occurs in N. W. Ark. upon 

 shaded moist cliffs and rich banks. Seems to prefer sandstone. 



31. Cystopteris bulbifeni, Bernh. — Quite plentiful on shaded rocks 

 in the mountains. Specimens from N. W. Ark. are sometimes nearly 

 two feet long. Found on both lime and sandstone. 



32. Onoclca sensibilis, L. — Occurs in spring bogs and upon low wet 

 cliffs of White River with a North exposure. The form growing on rocks 

 differs from the low ground form in having the sterile frond ovate in 

 ouUine, the pinnae oblong, obtuse and entire, the stipe no longer than 

 the blade. 



Tribe Woodsie^.. 



33. Woodsia obfusa, Torrey. — Upon cliffs and in rocky woods. 

 Prefers moist shaded places, though found in dry situations. Inland 

 and along streams. Grows luxuriantly. 



Tribe Dicksonie^e. 

 (Not Represented.) 

 SUBORDER CERATOPTERIDE/E. 



HYMENOPHYLLACE^. 

 SCHIZ.EACE.E. 

 (Not Represented.) 

 SUBORDER OSMUNDACE.E. 



34. Osmtinda regalis, L. — Common in the swamps of Arkansas. 



