SUPPLEMENT. 50 



bluntish or acute and subentire or crenate, triangular apex often the 

 longest (as in Phegopteris diversiloba v. A. v. R.); higher pinnae rather 

 close, adnate at the base and passing gradually into the terminal one; 

 following pinnae sessile, the base subcordate or truncate, often 1—2- 

 auriculate but commonly on the upper side only; lower pinnae rather 

 remote, petiolulate, with the lower base cuneate, rounded or truncate. 

 Texture firm-herbaceous ; surfaces naked, or sparingly pilose on the costae 

 and veins; under surface often verruculose; veins 3 — 4 on each side of 

 the main ones, the 1 — 2 lowest anastomosing. Fertile fronds with the 

 pinnae much contracted, linear, to 3 cm. long by + 2 mm. broad, 

 repando-crenate. Sori marginal, solitary on the crenatures, at length 

 laterally confluent or connected and apparently acrostichoid, i. e. fiUing 

 up the whole under surface of the pinnae ; indusium distinct though fugacious, 

 dark, lacerate. — Very variable in the shape of the barren pinnae. Largest 

 barren fronds more or less resembUng the smaller ones of D. lineata C. 

 Chr. occurring in the Buitenzorg Herbarium. - The description is taken 

 from Koorders' plants from Celebes, determined by Christ, Cuming's 

 undescribed original plant being unavailable to me. 



Vai*. rhomteea. — Stipes shorter, to 18 cm. long; barren fronds 

 similar to those of the type but smaller, to 12 cm. long includ. the 

 stipe ; fertile fronds + 7 cm. long, with the pinnae rhomboidal-lanceolate 

 to linear, 4 — 8 mm. broad, obtuse, crenulate; sori in 1 — 2 rows between 

 the costa and margin. 



War. lanceola: Like var. rhombea but the barren pinnae lan- 

 ceolate or linear-oblong, obtuse or subacute, subentire. — Largest fertile 

 pinnae more or less resembling the most contracted ones of D. lineata 

 G. Chr. occurring in the Buitenzorg Herbarium. 



Celebes, Philippines. 



P. 177; aJ. linea.la. — Insert: — var. subacrostichoides, v. A. v. R. 



Forma typica. — Malaya. 



War. SMfeaerostaelaoieles: Fronds smaller, pinnae oblong, 

 a'/j— 3'/j cm. long, 1 — 2 cm. broad, gradually lobed towards the blunt or 

 subacute apex ; fertile pinnae much contracted, + 1 % cm. long, entire ; 

 sori in 3—4 rows on each side of the costa, confluent; indusia very 

 minute, ciliolate, recognizable as black-red points scattered among the 

 sporangia. — Sumatra. 



