~ 31 - 



Lecanopteris saccata, v. A. V.R.; L. davallioides, v. A. V.R., var. 

 macrocarpa, v. A. V.R., Bull. Btz., WW, XXlll, 14; v. A. V.R., Mai. Ferns 

 & All., Suppl. I, 409. 



Segments herbaceous; fertile segments ascending, linear, the largest 

 to + 5 cm. long by '/2 cm, broad, blunt or bluntish at the apex, the edge 

 obliquely repando-sinuate; lobules elongated into or provided with a sori- 

 ferous outgrowth on the anterior side; outgrowths saccate, rather upright, 

 slightly inclined inwards, when dried mostly pressed down inwards and 

 then often laterally compressed and twisted, i.e. with the mouth of the 

 cavity directed obliquely towards the apex of the pinna (inwards or outwards); 

 sori immersed, occupying the whole of the outgrowths, the cavity therefore 

 nearly as long as the outgrowth, about as deep as long; areolae with only 

 fine, free or anastomosing included venules. 



Forma typica: Cavities about 2^/4 — 3 mm. long.— Sumatra (Rimbo 

 Pengadang, Explor. Exped. E. Jacobson, Coll. Ajoeb No. 222). 



Forma microcarpa: Cavities about 2'/4 — 2V2 nim. long.— Sumatra 

 {Bandar Baroe, Lörzing No. 4302). 



Lecanopteris Curtisii, Bk., in Journ. of Bot., XIX, 366; Hk., Icon. Pl., 

 XVil, tab. 1607; v.A.v.R,, Mai. Ferns & All., Suppl. I, 409; Polypodium 

 patelliferum, Burck, in Ann. Btz., IV, 96, p. p., tab. VII. 



Segments herbaceous to subcoriaceous; fertile segments spreading or 

 ascending, linear, the largest n: 4 — 6 cm. long, ', 2 — 1 cm. broad, blunt 

 or rarely subacute at the apex, the edge obliquely repando-sinuate; lobules 

 provided on the anterior side with a basal or subbasal soriferous toothlet; 

 toothlets navicular, 1 — 1 V2 mm. long, more or less (often very much) inclining 

 forwards, when dried nearly always pressed down outwards and then erecto- 

 patent or subparallel to the margin of the pinna and generally laterally com- 

 pressed and twisted, i e. with the mouth of the cavity directed mostly 

 obliquely towards the margin of the pinna; sori immersed, occupying 

 more than the whole of the toothlets, the cavities therefore longer than 

 the toothlets, I'/z — 2 mm. long, to 1 mm. deep; areolae with only fine, 

 free or anastomosing included venules. 



Sumatra {Paloepoe, Jacobson No. 2450; Taloe, Biinnemijer No. 149), 

 Lingga (Teysmann No. 16615), /ovo {LangkoplTj'iiorek, Backer No. 1755; 

 Tjidadap, Bakhuizen van den Brink & Valetonjr.), Celebes (Tondano, Teys- 

 mann No. 5296 H.B.). 



Lindsaya subsemilunularis, v.A.v.R.; L.' cultrata, Sw., Christ, in 

 Ann. Btz., XX, 133, p.p. 



Eulindsaya. — Rhizoma breviter repens, squamulis sparsis (deciduis?), 

 brunneis, breviter lanceolatis munitum. Stipites approximati, usque ad 2 

 cm. longi, cum rachide quadrangulares. Frondes lineares 10— H'/i cm. 



