VII. LASTREA. 103 
3. Lastrea Fillx-mas, Presl. Male Fern, or Com- 
mon Buckler Fern. Fronds lanceolate sub-bipinnate, 
pinnae linear-lanceolate ; pinnules oblong the basal ones 
more or less distinct, the rest confluent, their serratnres 
not spinulose; son uniserial near the midrib; indusiure 
convex very persistent, without glands on the margin : 
a. sub-bipinnate-; pinnules obtuse-oblong, distinct 
with a broad attachment, or connected at the base, crenato- 
serrate ; venules forked or three-branched ; sori confined 
to the lower half of pinnules. 
LASTREA FILM-MAS, Pres) : Bab. Man. 410 : Newm.197 : Florigr. 
Brit. iv. 103. ASPIDIDM FILIX-MAS, Swartz : Sm. Eng. F). iv. 
275: Eng. Bot. 1458 and 1949: Hook and Arn. Fl. 569: Franc 38. 
POLYPODICM FILIX-MAS, LimiEeus. POLYSTICHOM FILIX-MA, 
Hoth. DRTOPTERIS FILIX-MAS, Schott LOPHODIDM 1 ILIX-MAS, 
Newm. App. xx. 
/3. incisa : more robust ; bipinnate ; pinnules elongate- 
oblong acutish, deeply incised, the lobes serrate ; venules 
many-branched ; sori usually extending further up the 
pinnules. 
LASTREA FILIX-MAS, rnr. INCISA, Moore, Phytologist (1848) p. 
137: Bab. Man. 410. LASTREA EROSA, Deakin, Florigr. Brit. iv. 
101. ASFIDIUM FILIX-MAS, tar. EKOSUM, Hook and Arn. Br. Fl. 
5G9. ASPIDIUM DEPASTCM, Schkuhr (monstrons). ASPIDIUM 
EROSUM, Schkuhr, according to Deakin and Arnott, bat hardly so 
Schkuhr's plant having a glandular indusium and a winged se- 
condary rachis. ASPIDIUM AFFINE, Fischer and Meyer, according 
to Arnott. LOPHODIOM EROBUM. Newna. POLYPODIUM HELEOP- 
TEBIS, Borkhausen, according to Deakin. 
7. abbreviata : dwarf, sub-bipinnate ; pinnules small 
and confluent ; sori usually confined to the anterior venule 
of each pinnule, thus arranged in a single line near the 
rachis of the pinnae. 
