FILICES (FERN FAMILY.) 



90 ; 



2, :n. INCaraiitie, 



L. If Creeping root- 

 stock densely covered 

 with rusty chaff. Fronds 

 .15 to .4 high, long stip- 

 ed, oblong-lanceolate, 

 green, glabrous at upper 

 surface, densely clothed 

 at lower with silvery -ru- 

 fescent scales, bipinnate, 

 pinnules oblong, obtuse, 

 entire — May and June — 

 Clefts of rocks; Cassius, 

 Amanus, and north- 

 ward. 



Fig. 427. 



Fig. 428. 



Tip of frond of Notochla'iia 

 MarantsB. 



(o) Tip of frond of Clieilan- 

 thes fragrans. (6) A pin- 

 nule, with reflexed indusia, 

 and woolly induinent. 



7. CHEII.ANTHES, Sw. Lip Fern. 



Sori marginal, with few sporangia, distinct or at length confluent, 

 more or less covered by the reflexed margin of the pinnules, which is 

 fringed with white wool— ^ Low, tufted perennials, with 3-pinnate, 

 dark-green leaves. 



Ch. fragraii§,^ L. 2f Neck clothed with rusty scales. Fronds 

 glabrous, .1 to .15 high, with brown, shining stipes, oblong-lanceolate; 

 ultimate segments round-ovate, lowermost few-lobed or parted - April 

 to July — Clefts of rocks; common. Plant delightfully fragrant in 

 drying. 



8. PTERIJS;, L. Brake. . 

 Sorus linear, occupying a Fig. 429. 



receptacle along the whole mar- 

 gin 01 fertile frond, and more or 

 less covered by an indusium 

 arising from or near the edge. 

 Stipe continuous with root-stock. 

 Fertile and sterile fronds dis- 

 tinct, or lower segments sterile, 



and upper fertile. {a) Undeveloped pinna of Pteris longifolia. 



(b) Segment of a developed pinna, with a part of 



1, P. longifolia, L. 2f the margin on upper side roiled back, showing the 



Root-stock clothed with rusty sporangia. 



scales at apex. Fronds .3 to 1 high, lanceolate^ coriaceous, pinnatisect 

 into many pairs of opposite, linear-lanceolate segments, those of the 

 sterile fronds, and the inferior ones of the fertile broader, cartilaginous- 

 toothed — March to August — Banks of streams ; common. 



2. P. aquiliiia, L. % Bracken. Dishdr, Root-stock black, 

 nalced at apex. Frond dull-green, .7 to 1 high and broad, ternate at the 

 apex of a stout stalk . 3 or more high, the branches 2-pinnatisect ; pinnules 

 oblong-lanceolate, the upper undivided, the lower more or less pinnati- 

 fid — Summer — Woods and mountain sides to alpine regions. 



9. BI^ECHNm, L. Blechnum. 



Sori linear, continuous on either side of midrib of pinna, parallel to 

 it and occupying the whole space between it and the marginal anasto- 



