Ord. 1.] CRYPTOGAMIA FILICES. 207 



Muddy sea-coast. T? . 7, 8. R. woody. Stem shrubby, 1 — \\f spread- 

 ing. L. hoary, or mealy. 



2. A. laciniata, 3. 165. (Frosted Sea O,) Leaves trowel-shaped, 



angular and toothed ; scaly beneath. 

 Sandy sea-coast. 0. 7. liootjibr. Herbaceous, spreading ; clothed 

 with silvery scales. 



3. A.patula, 13. 936. (Halberd-leaved O.) Leaves triangular, lanceo- 



late, somewhat halberd-shaped. Calyx of the fruit tuberculated 

 at the sides. 

 Cult. & waste gr. . 6 — 8. Herb, spread. L. powdery. Seed dotted. 



4. A. angustifolia, 25. 1774. (Narrow-leaved O.) Leaves lanceolate, 



entire; the lower ones partly three-lobed. Calyx of the fruit 

 halberd-shaped, slightly warty at the sides. 

 Cult. & waste gr. . 6 — 8. Habit of the last. Seed scarcely dotted. 



5. A. erecta, 31. 2223. (Upright O.) Leaves ovate-lanceolate ; lower 



ones sinuated. Calyx of the fruit all over armed with sharp 

 tubercles. 

 Waste gr. rare. 0. 8. Herbaceous, erect. L. slightly powdery. Fr. 

 small. 



6. A. littordlis, 10.708. (Grass-leaved O.) Leaves all linear, entire, 



variously toothed, or sinuated. Calyx of the fruit sinuated ; its 

 disk armed with prominent tubercles. 

 Salt marshes. 0.7,8. Herb, erect, a little mealy. L. 2 — 4 in. 



7. A. pedunculata, 4. 232. (Stalked O.) Leaves obovate, entire. 



Seed-bearing flowers stalked, wedge-shaped. 

 Muddy salt-marshes. 0. 7, 8. Herb, zigzag, spreading, greyish, 

 all over scaly. 



Class XXIV. CRYPTOGAMIA. Stamens 

 and Pistils either imperfectly, or not at all 9 

 known ; or not to be numbered with any 

 precision. 



The Orders are all perfectly natural. 



Order I. FILICES. Ferns. Frond with dorsal, termi- 

 nal, axillary, or radical fructification. 



* Capsules aggregate, on the bach of a leafy frond, bivalve, each 

 bound with an elastic jointed ring, contrary to the valves. 

 Subord. Filices veiue. 



[The roots of the True Ferns are perennial, either tuberous or creep- 

 ing, scaly, often parasitical. Plants mostly herbaceous ; either ever- 



