MATERIALS FOR A FLORA OF FORMOSA. 439 
stipitem in longitudine squantes, 16 cm. late, pinnate, prope 
apicem lobulate, apice acuminate, basi latissime et truncate, 
pinnis (infimis longissimis) utraque latere 27, inferioribus 13 mm. @ 
se remotis, a rhachibus frondium angulo 70° divaricatis subrectis, 
sed sensim paullo versus apicem ascendento-recurvis, subses- 
silibus vel brevissime petiolatis, infimis angustatis 9 cm. longis 
16 mm. latis plus minus ascendento-falcatis vel subrectis, me- 
diocribus 64cm. longis 13mm. latis subrectis vel ascendento- 
recurvatis a basi usque ad prope apicem equilatis apice obtusis 
basi valde obliquis (latere superiore latiore basi truncato rhachi 
frondis parallelo, vel  subparallelo recto — integro, margine 
superiore duplicato-serratis) (latere inferiore angusto, margine in- 
feriore duplicato-serrato basi acuto, prope basin acuto basi a 
rhachi frondis 1 em. remoto,) Trondes apice acuminatize, lobulate, 
lobis obovatis simplicibus vel pauci-serratis, Rhaches frondium 
complanate supra sulcate, (sulco fusco-stramineo), subtus con- 
vexee, nitide, purpureo-nigricantes; costis et venis pinnarum 
subtus plus minus purpurascente coloratis, supra ecoloratis, 
venis parallelis angulo 40 a costis divaricatis (inferioribus 
9mm. ase remotis), furcatis, ramis superioribus soriferis ; 
pagine herbaceo-membranacee, supra viridissime, subtus paullo 
pallidiors vel concolores. Sori utraque latere costee 1-seriatim. 
dispositi, lineares, ad ramos superiores venularum fureatarum 
latere superiore uni-laterales, rarius ad ramos venularum _bi- 
laterales. Indusium~ lunulato-lineare 7 mm. longum 1 mm. 
latum. 
Has. Rahao, leg. K. Mryaxe, Oct. 1899; Randaizan, leg. B. 
Havara et U. Mort, 1908, Oct. 
The present plant was provisionally named A. rahaense by Mr. 
Y. Yase, but the species was not been described by him, nor was 
