10. LYGODIUM. § 1. EULYGODIUM. 117 



Primary petioles + 1 mm. long, 8 mm. broad, foliaceous, secondary 

 ones nearly wanting. Pinnae digitate, 3 — 4-foliolate, auriculate at the base. 

 Segments linear, to + 35 cm. long; barren segments + 2'/4— 2'/.^ mm. 

 broad, hairy on both sides, deeply pinnatifld into numerous approximate 

 lobes + 1 mm. long and ^/^ mm. broad; fertile segments + 6 mm. 

 broad, deeply pinnatifld into numerous approximate lobes + 3 mm. long 

 and 1 mm. broad, terminating in slightly crenated fertile lobules. Spores 

 provided with reticulated, wing-like crests. — The systematical place of 

 this species is uncertain because of incomplete description. 



Neio Guinea. 



[la) li. Kingii, Copel., in Philipp. Journ., VP 68. 



Near L. scandens Sto. — Rachises minutely pubescent. Primary 

 petioles none or obsolete; secondary ones conspicuously thickened at the 

 apex. Leaflets lanceolate, 4 — 6 cm. long, articulated and broadly cuneate 

 or truncate at the base. Spores tuberculate. 



Neio Gtiinea. 



(10a) See No. 2. 



(11) Ei. japonieum, Sw. 



Two distinct forms united by intermediates: 



Forma typica (Bedd., Ferns S. I., tab. LXIV; Christ, Farnkr. d. 

 Erde, fig. 1122): Pinnae moderately narrow; terminal pinnulae rather 

 short, oblong, blunt, broadly crenate or coarsely toothed, the crenations 

 and teeth entire or more generally crenate to serrulate; central pinnulae 

 hastate to palmatifld, de segments rather short, oblong, blunt, similar to 

 the terminal pinnulae but smaller, the terminal segment somewhat 

 larger; lower pinnulae similar to the central ones but pinnate at the 

 base with the lower leaflets similar to the central pinnulae but smaller. 



Forma elongata (v. A. v. R., in Bull. Btz., 1911, I, 10, tab. Ill): 

 Like the type but the terminal pinnulae much elongated, narrowly linear 

 or linear-lanceolate, as are the terminal segments of the central and 

 lower pinnulae, the pinnae therefore much broader; lateral segments of 

 the pinnulae not rarely subulate, and the teeth of the segments of 

 pinnae and pinnulae sometimes so. 



