118 10. LYGODIUM. 



§ 2. HYDROGLOSSUM. 



(13) Li. Merrillii, Copel., in Philipp. Journ., IF, 146, tab. IV; 

 IVC, 20, tab. XII. 



Rachis hairy or glabrescent. Primary petioles obsolete. Pinnae up 

 to 35 cm. long, pinnate. Pinnulae 2 — 3 on a side, the lower long-stalked, 

 forked or rarely dichotomously palmate, decurrent-truncate ; terminal 

 pinnulae once or rarely twice forked; segments up to 15 cm. long and 

 + 1','^ cm. broad, obscurely serrate. Texture membranaceous; surfaces 

 naked. Spikes + 5 mm. long, not close, on the tips of rather 

 prominent teeth. 



Mindoro. 



(14) Wj. Versteegii, Christ, in Nov. Guin., VIII, Bot., 161. 

 Fronds wide-scandent, the rachis smooth, dirty-brown. Pinnae 2—8- 



foliolate, short-stalked. Leaflets short-stalked, dimorphous, the barren ones 

 lanceolate, 10 — 15 cm. long, + 2-2'/2 cm. broad, entire, narrowed 

 gradually towards an acute barren or a narrow-caudiform fertile apex, 

 the lower part narrowed gradually into the petiole, provided with 1 or 

 more very minute, free auricles at the very base, the fertile ones narrowly 

 linear, 1 — 5 mm. broad. Texture thin-chartaceous, parchment-like, rather 

 transparent; rachis and surfaces naked, the petioles short-hairy; costae 

 prominent on both sides, dirty-brown; veins reticulate, very conspicuous, 

 forming ± 6 rows of oblique areolae between the costa and margin in the 

 barren pinnulae. Fertile spikes numerous, close, short, hairy at least 

 when young. 

 New Guinea. 



