162 



pinnae; coarsely, in the lower part, obtusely, serrate, and in the large, superficial 

 sori — the last an evident adaptation to the climate of the mossy forest. My 

 No. 183G, from Daklan, Benguet, differs from the type in having scattered piniue. 

 The following key includes the named species of Hehellolepis at present known 

 in the Philippines : 



1. Pinnae narrowed to the base. 



2. Sori very deeply immersed P. verrucosum 



2. Sori only moderately Immersed P. peraicaefoUvm 



1. Pinnae with broad base. 



2. Lamina hirsute P. beddomei 



2. Lamina not hirsute. 



3. Piniue narrowly triangular P. artjutmn 



3. Pinnae not uniformly narrowed from base to apex. 



4. Sori superficial P. pscudixoiutaliiii) 



4. Sori more or less immersed. 



5. Epiphytic P. siibuitriculatiim 



5. Terrestrial P. menfftteente 



Polypodium persicaefolium Desv. is the plant of Mount Apo, mentioned in my 

 Polypodiaceae, p. 123, as P. phlebodioides. 



Polypodium molliculum Copel., Perkins Fragmenta, p. 190, non Kunze in 

 Liimaea 25: 74!), may be a depauperate form of P. beddomei Baker. 1 have now 

 more typical material of this species from Lcpanto, and a similar or identical plant 

 from Mindanao. Cuming 203, determined by Mettenius (Polypodium, p. 81.) 

 as /'. pallens Bl., probably belongs here. 



Polypodium argutum Wall., is common on Mount Data. Province of Lepatiio. 



Luzon, Copeland 1802: 



India. 



Polypodium lineare Thunb. 

 Luzon, Province of Benguet, Copeland 1!)41. 

 Africa to Japan. 



Polypodium ( Phymatodes) luzonicum Copeland n. sp. 



Rhizomate Bcandente, 2 mm. crasso, paleis atro-brnnneis lanceolatis 

 longo-acnminatis minute eiliatis vestito; stipitibus 1-5 cm. altis. stra- 

 mineis, paleis brunneis deciduis vestitis; fronde Lanceolate vol oblan- 

 ceolata, 20-30 cm. alta, usque ad 4 cm. lata, Integra, acuminata, deorsnm 

 sensim attennata, glabra, papyraceo-coriacea ; venie primariis conspicuis 

 marginem fere attingentibus, venulis oecultis; soris magnis, inter venas 

 primarias in sericlms 2, praeterea plemmque in seriebns 1-3 recti's costae 

 parallelibus instructis, superficialibus. (Table 2'.).) 



Luzon, Lepanto, Bagnen. Copeland 1918. Epiphyticum, 1.900 m. s. m. 



This fern belongs to the very natural group including /'. -i]>j>elii, /'. hetero- 

 oarpum, and P. oisalum; it is readily recognizable by the regularity of arrange- 

 ment and size of the sori. 



Polypodium (Phymatodes) dolichopterum Copeland n. sp. 



Rhizomate ad terram humidam repentc, apice squamulia atria lan- 

 ceolatis 2-3 mm. longis vestito; stipitibus serial is, in ramos pedestales 

 1 mm. altos articnlatis, 10-15 cm. altis, 1-1.5 nun. erassis, stramineis, 

 glabris vol deorsnm sparsissime paleaceis; fronde deltoidea. ad alas 2-5 

 mm. latas pinnitifida, e;i. ;! cm. ad stipitem decurrente, glabra, mem- 

 branacea; segmentis divaricatis, lanceolatis, infimis 10-12 cm. longis, 



