172 



FERNS : BRITISH AND FOREIGN. 



THIBE VII. PTERIDE2E. 



Sori marginal, round, oblong or linear, interrupted or con- 

 tinuous. Indusium lateral, exteriorly attached on the margin 

 of the frond, special to each sorus, or sometimes universal to 

 two or more sori. 



1. Cheilanthece. Sori marginal, round or oblong, distinct 

 or laterally contiguous and confluent forming a compound linear 

 sorus. Indusium special to each receptacle, or more or less 

 linearly continued and common to two or more receptacles, 



86. NOTHOLJENA, R. Br.; J. 8m. 



Vernation fasciculate, generally erect, caespitose. Fronds 

 pinnate or bi-pinnate, o'-18 inches high, pilo-tomentose, squa- 

 mose or farinose. Veins forked, free. Receptacles terminal. 



Genus 86. Mature frond, upper side. No. 10. 



Sporangia few to each receptacle, contiguous, forming a mar- 

 ginal row in the axis of the reflexed sub-indusiform margin. 



1. K". trichomanoides, R. Sr. ; Lowe's Ferns, 1, t. 14 B. 



Pteris trichomanoides, Linn. ; (Plum. Fil. t. 75); ScJik. 

 Fil. t. 99. Jamaica. 



2. N. rufa, Presl. JSTotholsena ferruginea, Hook. 2nd Cent, of 



Ferns, t. 32. Mexico, Peru. 



3. N. brachypus, J. 8m. Cheilanthes brachypus, Kunze. 



Notholaena squamata, Hort. N. squamosa, Lowe's 

 Ferns, 1, t. 17 B. Mexico. 



4. N. distans, R. Br. ; Labill. Nov. Cald. t. 7 ; Hoo'k. Ic. PL 



t. 980; Lowe's Ferns, 1, t. 19. Australia, New 

 Zealand, and New Caledonia. 



5. W. mollis, Kunze, Fil. t. 53, /. 2. Chili. 



