71a. PLEOPELTIS. § 1. EUPLEOPELTIS. 397 



(201) PI. grandidcntata, v. A. r. JR. 



(202a) PI. pteropus, Moore, BedcL, Handb. Ind. Ferns, 359, 

 fig. 203; PL tridactyla, Moore, Bedd., Ferns Br. I., I, tab. XI; Poly- 

 podium pteropus, BL, Flor. Jav., II, 168, tab. LXXVIj P. tridadylum, Wall., 

 Hk. & Grev., Ic. Fil., tab. CCIX; var. minor, Bedd., Handb., 361, flg. 

 204; Ferns S. I., tab. CLXXIX; v. A. v. R., in Bull. Dep. Agr. I. N., 

 1908, XVIII, tab. IV, flg. 2 a-^h ; Ernst, in Ann. Btz., XXII, tab. XV. 



Rhizome creeping, branched, the scales lanceolate-subulate, blackish or 

 brownish. Stipes scattered, 2 — 20 — 30 cm. long, and as well as the back 

 of the costa and costulae squamulose. Fronds + 5 — 30 cm. long by 

 2 — 5 cm. broad, lanceolate, acuminate, entire, or pinnatifid with a large 

 terminal lobe and 1 — 2 smaller ones on each side. Lobes lanceolate, 

 acute or acuminate, entire or irregularly repando-crenate, the lateral ones 

 below long-tapering into a decurrent wing upon the stipe. Texture herb- 

 aceous; surfaces naked or the lower somewhat squamulose on the veins; 

 main veins rather wide apart, extending + ^/j of the way to the margin, 

 then uniting and forming a series of large costal primary areolae, a second 

 series of smaller areolae is formed nearer the margin, both filled up with 

 a net-work of smaller irregular areolae with included free veinlets. Sori 

 small, not very numerous, scattered irregulary, 1 . • 7 in the large costal 

 areolae, compital, not rarely confluent into oblong or linear (grammitoid) 

 sori. — Var. minor is a small, shorter stalked form with always simple 

 fronds, and the sori in 1 — 3 more or less regular rows on each side 

 of the costa. 



Tropical Asia. 



(202a*) PI. ac|uatica, ». A. v. JB.,- Polypodium aquaticum, Christ, 

 in Nov. (3-uin., VIII, Bot., 158; C. Chr., Ind. Fil., Suppl. 



Rhizome creeping, grey, clothed with brown, subulate-lanceolate 

 scales. Stipes distant, ± 25 cm. long, somewhat flexuose, sulcate. yellow- 

 grey, provided with brown, lanceolate, acute, spreading scales. Fronds 

 3-partite, to 28 cm. long, to 22 cm. broad, suddenly narrowed at the 

 base, gradually decurrent upon the stipe. Lobes lanceolate-oblong, + 4'/2 cm. 

 broad, entire, acuminate, the lateral ones porrect, as long as the central one 

 or somewhat shorter. Texture thinly herbaceous, flaccid; surfaces naked; 

 color grey-green, opaque; costulae distinct, slender; main veins fine, 

 rather spreading, flexuose, not reaching the margin, forming large primary 



