344 ' 71. POLYPODIUM. 



Arrangement of the sections and groups. (' 



§ 



1. 



EUPOLYPODIUM. 



a. lutegrifolla. 



b. Fiircata. 



c. Pinnatltida. 



d. Piniiata. 



e. Coiuposita. 



§ 



2. 



PROSAPTIA. 



§ 



8. 



GONIOPHLEBIUM. 



a. Crypsinus. 



b. {^yuauBBtaia. 



c. Margjinaria. 



d. SchcSI«lepis. 



§ 



4. 



PHLEBODIUM 



§ 



5. 



CAiVIPYLONEURON. 



§ 1. EUPOLYPODIUM. 



(3a) P. sparsipilaiUB, Copel., in Philipp. Journ., VF, 139, tab. 

 XXIII b. 



Rhizome short, the -scales dense, broadly lanceolate, brown, gloss5^ 

 Stipes aggregate, filiform, 6 — 9 mm. long, clothed with spreading hairs. 

 Fronds linear-ligulate, + 5 cm. long, 3 — 4 mm. broad, subentire. Texture 

 herbaceous, diaphanous; surfaces sparingly pilose; veins often forked. 

 Sori round, superficial, subcostal. 



Borneo. 



r 



two latter genera, that in this special case another arrangement is to be preferred, 

 and habit and mode of growth are to be considered as more important characteristics 

 than te articulation of the stipes. 



This may cause some difficulties to inexperienced students of Pteridology, as in 

 regard to habit and mode of growth a sharp line is hard to draw; but those who 

 once have learned to recognize the species of Polypodium and Pleopeltis at the first 

 sight, will easily distinguish them from Phegopteris and Dictyopteris. 



(') For the characters of the sections and groups, see my Handbook, pp. 567 seq. 



