I j^ Filices — Lycopodiaceae. 



LASTRE'A OREOP'TERIS (97). Sweet Mountain Fern. 7—8. 



(1792) Fronds 2 — 3 ft. in circular tufts, stipes very short covered with pale- 

 brown scales, fronds broadly oblong-lanceolate pinnate, pinnae 3 — 4 

 in. lanceolate pinnatifid glandAalar beneath, lower ones smaller and 

 more distant. Heaths and mountain pastures. 



Lastre'a Thelyp'teris (41). Marsh-fern. 7 — 8. Root creeping, stipes 

 (1791) smooth, fronds not tufted i — 2 ft. lanceolate pinnate, pinnae 2 — 3 in. 

 deeply pinnatifid scarcely smaller below. [G. 



LASTRE'A FI'LIX-M AS (112). Male Fern. 7—8. Fronds 2— 3 ft. 



(1793) in circular tufts, stipes and rachis with lanceolate scales, fronds ovato- 

 lanceolate (or oblong-lanceolate) bipinnate, pinnae 4 — 5 in. those at 

 the base of the frond somewhat smaller, pinnules obtuse serrate some- 

 times almost joined at their base. Shady places. 



Lastre'a rig'ida (6). Rigid Buckler-fern. 7 — 8. Frond i — 2 ft. tufted 



(1794) oblong-lanceolate bipinnate glandular and fragrant, pinnae 2 — 3 in. not 

 smaller at the base of the frond, pinnules serrate contracted at the 

 base, stipes scaly. [G. {Attermire, Ingleborough^ Penyghent. ) 



Lastre'a ae'mula (34). Recurved Fern. 7 — 9. Frond tufted ovato triangu- 



(1800) lar bipinnate, pinnules deeply pinnatifid almost pinnate, lobes serrate, 



lower pinnae triangular-ovate with larger pinnules at the base and on 



the under side, pinnules triangular ovate with the edge curved so as to 



be concave above, glandular beneath with a fragrance of hay. Settle. 



LASTRE'A DILATA'TA (76). Broad Prickly-toothed Fern. 8—9. 



(1799) Frond 3 — 5 ft. dark green ovato-triangular bipinnate, pinnules pinnatifid 

 larger ones almost pinnate, segments serrate, lower pinnae triangular 

 with larger pinnules on the under side, stipes covered with lanceolate 

 scales dark brown in the centre pale at the margin. Moist woods and 

 shady and rocky places. 



ORDER 90. — Lycopodiaceae. 



Moss-like flowerless plants with creeping or erect stems. Leaves veinless 

 scale-like closely imbricated on the dichotomous stems. P'ructification by 

 spores contained in theccz situated in the axils of the leaves or of the scales of 

 terminal contracted cone-like portions of the branches. 



Spores of two kinds, large and small, 683 



Spores all alike, Lycopodium II. 



683 Leaves erect setaceous, .... Pilularia III. 



683 Leaves lanceolate imbricated, . . . Selaginella I. 



I.—SELAGINELLA. 



SELAGINEL'LA SELAGINOI'DES (55). Lesser Club-moss. 6—8. 



(1828) Stem decumbent 2 — 4 in. with lanceolate leaves \ — \ m., thecae of 2 

 kinds in terminal cones minute globose capsules containing microspoi'es 

 and larger 2 — 4-valved capsules containing each a few macrospores 

 Wet stony places. 



