173 
L. OrEorTERIS. Sweet Mountain Fern. Fig. 1721 
Fronds tufted, pinnate; pinne linear-lanceolate, pinnatifid, with 
resinous glands beneath, gradually decreasing to the root U land 
heaths and woods. 2-3ft. Perenn. July. Z. B.1.1019, ER. 2. 
1419. H. §& Arn. 584. Bab. 4. 421, 5, 429. N.187. S.F.8. 
L. Frurx-mas. Male Fern, Fig. 1722, 
Fronds lanceolate, bipinnate ; pinnse linear-lanceolate. Sori near the 
mid-vein. Woods and hedge-banks. 2-5 ft. Perenn. June, July. 
£. B.1.1458. EF. B.2.1422, A. §& Arn. 585. Bab. 4, 421, 5. 493. 
N.198. S.F.9. 
L. r1e1pA. Rigid Lastrea. Fig, 1723. 
Fronds triangular-lanceolate, bipinnate, glandular. Indusium fringed 
with glands. Limestone rocks. 1-2 ft. Perenn. July, Aug. Z. B.S. 
a £. B. 2. 1423. H. §& Arn. 585. Bab. 4. 422,5,423. N. 191. 
S. F.11. 
L. cristata. Crested Fern, Fig. 1724. 
Fronds linear-lanceolate ; pinnze short, triangular-oblong, with oblong 
serrated lobes. Bogs; rare. 2ft. Perenn. Aug. #. B. 1.2125. 
£. B. 2.1421, H.§ Arn. 584. Bab. 4.421, 5.423. N.203. 8S. F. 10. 
L. spinuLosa. Narrow Prickly-toothed Fern. Fig. 1725. 
Fronds linear-lanceolate, bipinnate. Scales of stipe broad, ovate, 
pale. Damp woods. 1-3 ft. Perenn. J uly-Sept. #. B. 1.1460. 
£. B. 2.1424, H. § Arn. 586. Bab. 4.422, 5.424. N.203. 8. F.12. 
L. pizatata. Broad Prickly-toothed Fern. Fig. 1726. 
Frond ovato-lanceolate, bipinnate. Scales of stipe long, lanceolate, 
dark in the centre. E.B.1.1461. 2. B.2.1425. Bab. 4. 422, 5.424, 
N.215. S.F. 13. 
L. r@nisecit. Recurved Prickly-toothed Fern. Fig. 1727. 
Fronds curved, triangular-ovate, bipinnate. Scales of stipe narrow, 
lanceolate, laciniate, pale. Damp shady places. 1-3 ft. Aug., Sept. 
Bab. 4, 422, 5.424. N.225. S. F. 14, 
Genus 5. Potysticuum. 
P. Loncuitis. Holly Fern. Fig. 1728. 
Fronds rigid, linear-lanceolate ; pinnee spinose-serrate, auricled above, 
oblique below. Mountainous districts. 3-18 in. Perenn. July. 
£. B.1.797.  E.B.2.1415. H.& Arn.583. Bab. 4. 423, 5.424. 
N.163. 8S. F.15. 
P. acuteatum. Prickly Shield Fern. Fig. 1729. 
Frond rigid, subpinnate, pinnules more or less decurrent. Hedge- 
banks. 2-3 ft. Perenn. July, Aug. 2H. B.1.1562. #.B.2. 1417, 
H. §& Arn. 583. Bab. 4.423, 5.425. N.169. S. F. 17. 
P. ropatum. Close-leaved Prickly Shield Fern. _—_‘*Fig. 1730. 
Frond rigid, simply pinnate; pinnee lobed or pinnatifid. Hedge- 
banks. 2-3 ft. Perenn. July, Aug. Z. B.1. 1563. 2. B. 2.1416, 
H. § Arn. 583. S. F. 16. 
