POL Y PODIA CE&. 9 5 



stout, covered with pale-brown tomentum ; fronds 8' 15' long, 

 oblong-lanceolate, everywhere but especially beneath tomentose 

 with slender, brownish-white, obscurely articulated hairs, tri- 

 pinnate; pinnae and pinnules ovate-oblong; ultimate pinnules 

 .V" |" long, the terminal ones twice as large; indusium pale, 

 membranous, continuous. (C. Bradburii Hook.) Virginia to 

 Missouri, Texas, and Arizona. 



\\ Stipe and rachises covered with very narrow scales. 



14. C. Eatoni Baker. Differs from the last in having the 

 stipes and rachises covered with very narrow scales and by the 

 matted tomentum of the upper surface. Arizona. 



15. C. f ibrillosa Dav. Plant 3' 6' high; rootstock forming 

 dense, entangled clumps of short rhizomes, clothed with dark 

 linear-lanceolate scales, passing gradually into lighter-brown 

 scales, mixed with coarse fibres and tomentum at the base of 

 the stipes ; stipes 2' 3' long, chestnut-brown, terete, at first 

 tomentose with fibrous scales and wool, becoming smooth with 

 age ; fronds 2' 3' long, ' r-J-' wide, tripinnate, loosely covered 

 with deciduous tomentum, that along the rachises beneath per- 

 sistent, tawny, mixed with coarse fibres. (C. lanuginosa, var. 

 fibrillosa Dav.) San Jacinto Mountains, California (Parish). 



16. C. Parishii Dav. Rootstock creeping, short, clothed 

 with deep-brown linear-lanceolate scales, with darker nearly 

 black mid-nerves; stipes 2' 3' long, approximate, light to dark- 

 brown, clothed at base with scales similar to those on the root- 

 stock, passing gradually into broader pale-brown or nearly white 

 nerveless scales, with more or less deciduous, slender, pale scales 

 and chaff above; fronds 3' 4' long, i' i^' broad, oblong- 

 lanceolate, tri quadripinnate, with both surfaces scantily 

 clothed with a coarse tomentum ; pinnae alternate, oblong-ovate, 

 obtuse, the lowermost somewhat distant; segments roundish, 

 the terminal ones largest and three-lobed ; indusia very narrow, 

 only partially enclosing the sori. San Diego Co., California 

 (Parish). 



** Fronds covered beneath with imbricated scales, not tomentose. 



I?. C. Fendleri Hook. Stipes 2' 5' long, chaffy with 

 minute slender scales ; fronds 3 4' long, ovate-lanceolate, 

 tripinnate ; scales of primary rachis like those of stipe, those of 



