Asi'iDiK.K — Asriiur.M. 39 



lowest iiimiii' very lar^a", ol)li(HU"ly di-ltoiil. piiniwli's mi its lia^isenpie side 

 prolonged, and at loast dt'oply pinnatitid in turn; vciiilcts iinastoniosing 

 at least near the midribs, without sterile included veinlets; indnsia 

 suhcordate. I suppose tliat Xriihiodiuin (I'leocnemiu) tjif/dntcutii ISaker 

 is our I'hilippine plant; if it is distinct from .1. yiytiutruin IMume, Baker's 

 name can not stand. 



Leyte, Cuminfit; Caniarines and Alhay, liarninhi. 



(23) A. heterophyllunn Mett. Rhizome creeping; stijie 5 to 10 em. 

 higli, densely villous; froml 10 to 15 cm. liiRli, linear-ohlonfr, simple, with 

 obtuse, oblonjr. slif;litly falcate lobes reaching one-fourth of the way to 

 the costa, coriaceous, villous on both surfaces, l)\it especially on the 

 margin and costa beneath; anastomoses of the veinlets not very regular, 

 l)ut suggesting (ioniopteris; sori midway the veins and the margin of the 

 lobes. Apparently related to yephrodiuDi canescens. 



Samar, Ciiinlini '.V12. 



(24) A. ambiguum (linokiTl Diels. Stipe slender, ncaily naked ; frond 

 40 to (')() cm. high. ."iO em. lnoad, oblong-deltoid, bipinnatifid; pinnte lance- 

 olate, 10 to 1.5 cm. long, 3 cm. broad, the lower ones slightly stalked, 

 cut half way or more to the rachis into linear-oldong lobes, the fertile 

 ones contracted, thinly herbaceous, dark green, rachis and both sides thinly 

 clothed witii long, jointed hairs; veinlets of the lobes often forked, the 

 lower ones forming costular areolte; sori oblong, confluent when the veins 

 fork : indusiuni none. 



Luzon, Ciimiitfi 154 (Samar, Cuming 321?). 



(25) A. leuzeanum I Presl) Kunze. Rliizonie erect, usually short but 

 sometimes arborescent, densely scaly at the crown; stipe 1 m.. more or less, 

 long, stout, striate; frond 1 to 2 m. long, subdeltoid; pinna; 30 to 50 

 cm. long, 15 to 25 cm. broad, upper ones simple, lowest ones pinnate on 

 the basiscopic side, and the large pinnules pinnatifid ; segments 10 cm. 

 long, 2 to 3 cm. broad, subfalcate, entire or sinuate; veinlets anastomosing 

 sparsely and irregularly, rarely free; sori in single close rows; indusia 

 orbicular-cordate, fugacious. 



Luzon, Cuming 33, 34, 107; Rizal and Laguna, Lohcr ; Mindanao, 

 Cuming 289. 



India and China to Polynesia. 



(7 I POLYBOTRYA H.. P.. ami K. 



Fronds at least pinnate, the fertile nuich contracted; veins free in the 

 I'hilippine species; sori originating in a receptacle on the veins, almost 

 or entirely covering the under surface, e.xindusiate. Our species are rather 

 sjnall terrestrial ferns. 



1. Pinnae not articulate to rachis. 



2. Setae projecting between teeth (1) P. appcndiculata 



' 2. Without set». 



3. Frond bipinnatifid (2) P. stciwsemioidcs 



3. Frond bi- or tripinnate (3) P. apiifoUa 



1. Plnnse articulate to rachis (4) P. articulata 



