Nuttalliane. N. O. Filices. 
DCCCCX XVII. 
ASPLENIUM PINNATIFIDUM, Nutt. 
Cespitosum glabrum, frondibus parvis divaricatis subcoriaceis 
hastato-lanceolatis longe acuminatis subtus setuloso-squam- 
ulosis inferne profunde fere ad rachin pinnatifidis, lobis 
cordatis sinuato-lobatis dentatisve, medio semipinnatifidis 
lobis obtusis dentatis, apice subintegerrimis, soris paucis in 
singulo lobo lineari-oblongis demum confluentibus, stipite 
inferne ebeneo, caudice brevi repente, 
Asplenium pinnatifidum, Nut. in Gen. of N. Am. Pl. 2. p. 251. 
Has. U. States, Banks of the Schuylkill, near Philadelphia, 
Nuttall, Dr. Bromfield, Mr. J. Mc. Nab. Tenessee, Nut- 
tall. Sandstone rocks, “Mine la Motte,” Southern Missouri. 
(Herb. nostr.) 
This appears to be a rare species, and gathered by very few 
Botanists. Muhlenberg, according to Nuttall, seems to have 
confounded it with Asplenium (Camptosorus, Lh.) rhizophyllum, 
of which it has a good deal the habit; but, besides the very 
different venation peculiar to the latter plant, its fronds are 
entire (not pinnatifid), rooting and proliferous at the extremity. 
Fig. 1. Portion of a frond, seen from above. f. 2. Fertile 
lobe, seen from beneath :—magnified. 
