APPENDIX. 5ll 



4S«. F»TEKIS, £«nn^. 



§ 1. EUPTERIS 



(9«) Pt. Brooksiana. r. A. r. «., in Bull. Btz., 1916, XXIII, 19. 



Rhizome short, the scales minute, subulate-triangular, blackish. Stipes 

 stramineous to purple-browii-black, naked, 10 — 50 cm. long, those of the 

 fertile fronds much the longest, 2-marginate-canaliculate on the upper 

 side except towards the base. Fronds ternate; barren fronds + 15—20 

 cm. long. Central (terminal) pinna short-stalked, with a long-linear ter- 

 minal segment 1 '/j — 2 cm. broad and coarsely serrate-dentate towards the 

 bluntly acuminate apex besides 1 — 4 remote or contiguous segments near 

 the acutely subdecurrent base, which are oblong or linear-oblong, to 2 cm. 

 long by '/4 — 1 cm. broad and more or less coarsely serrate-dentate at the 

 blunt apex; lateral (basal) pinnae similar to the central one but much 

 shorter, narrower, with 1 —2 basal segments on the lower side only. 

 Texture coriaceous ; surfaces naked ; costae prominent beneath, 2-marginate- 

 canaliculate above; veins numerous, spreading, simple or once to twice 

 forked. Fertile fronds contracted, with the central pinna longer stalked, 

 and the lateral segments suddenly dilated on the lower side at the base. 

 Sori not reaching the repando-crenate apex of the fertile segments. 



Sumatra. 



(44) Pt. tripartita, ««?.,• — var. dissoluta, v. A. v. R., in 



Bull. Btz., 1916, XXIII, 20. 



Forma typica: Ultimate segments approximate or moderately close, 

 separated by sinuses with a blunt angle. — Paleotropical. 



Var. disstoluta : Ultimate .segments (at least those in the lower 

 half of the larger pinnulao) more remote, separated by sinuses with an 

 obliquely truncate angle. — Sumatra. 



46. E»A.ESI-^, St. Bilaire. 



(2) P. rugosula (not rugulosa), Kuhn; P. rugulosa, Diels (not Kulm), in 

 Eng. & Prantl, Nat. Pfl.fam., I*, 297. 



Omit this species, as being not Malayan. 



