'_!<) COPELAND. 



7. Lygodium japonicum (Tlmnb.) Swtz. 



Dwarf-branches 2 to 1 mm long-; phrase up to 25 cm long, and 15 cm 

 broad, usually about two-thirds this size, rachis very narrowly winged; 

 pinnules decreasing upward in size and complexity, the lowest long- 

 stalked, pinnate: pinnules 11 1 or 2 on a side, the lower stalked, lobed at 

 the base and the lobes often auricled on one side, end segments longest, 

 linear, obtuse, herbaceous, usually somewhat hairy, margin finely toothed; 

 fertile pinna 1 sometimes tripinnate, with small and numerous ultimate 

 pinnules of which lateral ones are as broad as long, lamina reduced and 

 sometimes almost wanting; spikes usually 3 or -f mm long. This also is a 

 very variable species. Specimens with partially fertile pinna 1 are some- 

 times hard to distinguish from L. flexuosum: but as a rule the linear 

 sterile segments and strong dimorphism make this species very easily 

 recognized. Korean plants have most finely dissected sterile fronds. 

 Specimens from India and Java have the sterile segments narrow but too 

 short to be linear. The Philippine plants have most ample and least 

 compound fertile pinna 1 . A specimen from ISTegros has spikes reaching 

 a length of 2 cm. 



Japan and Korea to India and Australia. 



8. Lygodium matthewi Copel. Philip. Journ. Sci. Bot. 3 (1908) 36. 



The giant of the genus with rachis 5 mm thick, and pinna? more than 

 50 cm long; dwarf branch mm long, with very large terminal bud; 

 pinnules 1 or ? on a side, long-stalked, cordate, dichotomously forked or 

 palmate; terminal pinnules cuneate-cordate, dichotomously palmate with 

 5 or 6 segments which are 20 to 30 cm long, ;3 to 1 cm wide, acuminate, 

 irregularly serrate, herbaceous, venation copiously reticulate, fertile 

 phrase unknown. 



Luzon, Mount Maquiling, alt. 300 in. 



0. Lygodium merrilli Copel. Philip. Journ. Sci. Bot. 2 (1907) 140, PI. IV. 

 (Plate XII.) 



Rachis I.-") mm thick, hairy or glabrescent; dwarf-branch mm long- 

 pinna' up to 3.') cm long: pinnules 2 or 3 on a side, the lower long-stalked, 

 forked or rarely dichotomously palmate, decurrent-truncate, terminal 

 pinnule forked or rarely twice forked, segments up to 15 ens long and 

 17 mm broad, obscurely serrate, membranaceous, glabrous; spikes about 

 5 mm long and 1.5 mm broad, on the tips of rather prominent teeth, 

 which do not appear ill the cut with the original description; venation 



reticulate, 



Mindoro, alt. 300 m. 



2. SCHIZAEA Smith. 



Rhizome under or on the ground; fronds crowded, erect, sterile parts 

 terete, or simple and grass-like, or dichotomous: sterile segments or spike 

 born at the top ; sporangia in a row along each side of the unbranched 

 vein, protected by the reflexed margin. A genus of about 85 species, 



