ASl'lltlE.i: — STKNOSKMIA. 41 



(1) S. aurita Pii-il. Rliizomo erect, .^liort ; >ti|>c of sti-rile frond 15 to 

 20 cm. lii;;li, vi Icrtik' JU to ;iO cm., i'l)i>iu-ous, Id-niin^i; a ffw lax palca-; 

 sterile frond 8 to 20 cm. liigli and broad, its central part dooply pinnatifid 

 witli entire, or obtusely serrate, lanceolate lobes; lateral |iinnip very 

 une(|uai sided, witli lowest basisoopie sej^mi'iit pinnatifid, nifinbi iinaceoiis, 

 glabrous or with scattered liairs, especially on tlie veins; fertile on the 

 same plan as the sterile. Imt rather smalitT and the segments hardly over 

 1 mm. broad; terrestrial. 



Leyte, C'in/ii/1/7 2!t."i ; Zamboanga, ('(iiuldud 7.">X: Oavao. Wnrhurfj 14170, 

 Copeland O")?. 



Malaya to Polynesia. 



(9) GYMNOPTERIS I'.ernhardi. 



Khizome usually ciecping; frond sinijiie or piiuialf, the iiTiib.' much 

 contracted; veinlets copiously anastomosing, with, or less frequently with- 

 out, free included veinlets; sori covering the entire dorsal surface, e.vindu- 

 siate. Mostly terrestrial ferns of small or moderate stature. 



1. Sterile frond simple, entire, or nearly so. 



2. Main veins evident nearly to the margin. 



3. Free included veinlets usually wanting (1) Gf. Uiiitaeana 



3. Free included veinlets copious (2) G. variabilis 



2. Main veins obscure, short, or none. 



3. Sterile frond about 5 cm. long (3) G. mitior 



3. Sterile frond 15 cm. or more long. 



4. Rhizome creeping (-1)0. lanceolate 



4. Rhizome scandent (5) G. axillai-is 



1. Sterile frond typically trifld (6) G. taccaefolia 



1. Sterile frond typically pinnate. 



2. Lateral pinnae but one pair (7) G. flagellifcra 



2. Lateral pinnae several pairs. 



3. Terminal pinna unlike the lateral. 

 4. Fonds 30 cm. or more high. 



5. Terminal pinna entire or sinuate (8) G. subrepanda 



5. Terminal pinna pinnatifid (9) G. rcpaiula 



4. Fronds rarely 10 cm. high (10) G. inconsta»s 



3. Terminal pinna like the lateral. 



4. Free included veinlets few or none (11) G. contaminans 



4. Free included veinlets regularly present. 



0. Primary veins conspicuous (12) G. costata 



5. Primary veins obscure (13) G. presliana 



(1) G. linnaeana (Hooker), Rhizome wide-creeping; stipes 5 cm. 

 more or less high, slightly fibrillose below; sterile frond 10 to 20 cm. 

 high, 1 to 2 cm. broad, narrowed gradually to both ends, sometimes rooting 

 at the apex, entire, papyraceous, subopaque, dark green; main veins fine, 

 rather zigzag but distinct nearly to the margin; arcohe copious, without 

 free veinlets; fertile frond hardly 10 em. long, less than 1 cm. broad. 



Rizal. Lohcr. This plant often has a pair of minute free pinna; at the 

 base of the linear frond; or even the sterile frond pinnate. 

 Malaya. " 



(2) G. variabilis (Hooker) Bedd. Rhizome wide-creeping; stipe of 

 sterile from! to 10 em. higli. of fertile 30 cm. or more; sterile frond .W 



