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Orprer CIX. MARSILEACRA. 
Genus 1. Prnunarta, 
P, GLOBULIFERA. Pillwort. Fig. 1761. 
Rhizome creeping, slender, producing leaves and roots at regular in- 
tervals. Margins of lakes. 1-5 in. Perenn. May. E£. B.1. 521 
BF. B.2.1458. H.§ Arn. 596. Bab. 4.430, 5.431. S14. 
Orpvrr CX. LYCOPODIACEA. 
Genus 1. Isozrss, 
I. nacustris. Quillwort. Fig. 1762, 
No persistent leaf-bases ; larger spores bluntly tubercled. Aquatic. 
Bottom of lakes. 2-6in. Perenn. July. #.B.1.1084, EF. B.2. 
1457. H.§ Arn.596. Bab. 4. 430, 5.432. S. 13. 
I. ECHINOSPORA. Fig. 1763. 
No persistent leaf-bases ; larger spores very acutely tubercled. Aquatic 
(Bab.). Bottom of pools. 1-4 in. Perenn. July. Bad. 5. 432. 
I. Hysrrix. Fig. 1764. 
Rhizome more or less covered by the persistent hardened leaf-bases. 
Terrestrial (Bab.). Dampish sandy places. 1-2in. Perenn. May, 
June. Bab. 5.432, 
Genus 2. Lycopopium. 
L. cuavatum. Common Club-moss. Fig. 1765. 
Stem creeping, long; leaves scattered, incurved ; spikes 2—3, stalked. 
Heaths and high pastures. Perenn. July, Aug. EH. B. 1.224. #, B. 2. 
1451. H.§ Arn. 595. Bab. 4. 430, 5.432. 8.15. 
L. annotinum. Interrupted Club-moss. Fig. 1766. 
Stem creeping, long; leaves spreading; spikes sessile, solitary, ter- 
minal. Stony mountains. Perenn. Aug. #.B.1.1727. £. B. 2. 
1452. H.§ Arn.595. Bab. 4. 430, 5.432. 8.16. 
L. ALeINUM. MSavin-leaved Club-moss. Fig. 1767. 
Stem creeping; leaves in four rows, imbricated; spikes sessile, 
terminal. High moorlands arid mountains. 2-5 in. Perenn. Aug. 
FE. B.1. 234. BE. B. 2.1455. H.& Arn. 595. Bab. 4. 431, 5. 432. 
S. 17. 
L. Setago. Fir Club-moss. Fig. 1768. 
Stem short, erect ; leaves obscurely 8-rowed. Barren sandy heaths. 
2-9 in. Perenn. June-Aug. Z. B. 1. 233. #. B.2. 1456. H. & Arn. 
995. Bab. 4.431, 5.433. 8.18. 
L. inunnatum. Marsh Club-moss. _ Fig. 1769. 
Stem creeping ; leaves scattered, curved upwards ; spikes terminal, 
sessile. Moist boggy heaths. 1-3in. Peremn. Aug., Sept. #. B. 1. 
239. E, B.2.1453. H. & Arn.595. Bab. 4.431, 9. 433. §.19. 
L. seLacinorpes. Lesser Alpine Club-moss. — Fig. 1770. 
Stem creeping, branched ; spikes solitary, sessile, terminal. Boggy 
ground. 2-4 in. Perenn. Aug. F£. B. 1. 1148. 2. B. 2. 1454. 
H. § Arn.595. Bab. 4, 431, 5.433. 8. 20. ms 
