172 
FERNS : BRITISH AND FOREIGN. 
Tribe VII.— PTERIDE^]. 
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. NOTHOLiENA, B. Br. ; J. Sm. 
Vernation fasciculate, generally erect, ccespitose. Fronds 
pinnate or bi-pinnate, 6-18 inches high, pilo-tomentose, squa- 
mose or farinose. Veins forked, free. Receptacles terminal. 
Genas 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. N. trichomanoid.es, II. Br.; Lowe's Ferns, 1 , t. It B. 
Pteris triclxomanoides, Linn. ; {Blum. Fil. t. 75); Schk. 
Fil. t. 99. — Jamaica. 
2. N. rufa, Brest. Notholaena ferruginea, Look. 2nd Cent, of 
Ferns, t. 52. — Mexico, Peru. 
0. N. brachypus, J. Sm. Cheilanthes brachypus, Kunze. 
Notholaena squamata, Lort. N. squamosa, Lowe's 
Ferns, 1, t. 17 B. — Mexico. 
4. N. distans, II. Br. ; Lahill. Nov. Cald. t. 7 ; Look. Ir. Bl. 
t. 980; Loive's Ferns, 1, t. 19. — Australia, New 
Zealand, and New Caledonia. 
5. N. mollis, Kunze, Fil. t. 53, /. 2. — Chili. 
