154 



fertile angustibre, mox deeiccante, pinnis ca. 11 cm. longis, 2-3 mm. latis, 

 patentibns. 



Luzon, Lepanto, Bagnen, 1,900 m. s. m., Oopeland 1924. 



Near P. euphlcbia Molt., but larger, with more numerous and closer pinna*, 

 entire except, near the point. 



Plagiogyria pycnophylla (Presl) Mett. 



Luzon, Province of Lepanto, Mount Data, Oopeland 1854 a. Both the typical 

 plant and the var. remota grow here. 



Plagiogyria pycnophylla var. mixta (opel. n. var. 



Pinnnlarum fertilium plerumque apicibus dilatatis sterilibus. 



LUZON, Lepanto, monte Data, 2.000 in. s. in.. Copeland 1S.")4. 



Plagiogyria stenoptera (Hance) Diels. 

 Lizox. Province of Lepanto, Bagnen, Copeland 1025. 

 Formosa. 



ADIANTUM Linn. 



Adiantum mindanaoense Copeland n. sp. 



Rhizomate brevi-repente, 5 mm. crasso, radices eopiosissimas emittente; 

 stipitibus confer! is, 25-40 cm. altis, deorsum paleis nitido-fuscis lineari- 

 subulatis vestitis, sursum glabris, atro-fuscis; rbacliibus infra glabris, 

 supra pilis minutis dense pubescentibus; fronde deltoideo-ovata, 25—10 

 cm. alta, 20-30 em. lata, acuminata, tripinnata; pinnulis ultimis glabris, 

 papyraeeis, brevi-pcdicellatis, dimidiatis, 15-18 mm. longis, 7 mm. altis, 

 obtusis, rbacbin seeus truncatis, apicibus minute dentatis, marginibns 

 acroscopicis lente lobatis ; soris in pinnula quaque ca. 6, in lobis solitariis, 

 loboa fere complentibus, reniformi-suborbicularibus; sporangiis ad et 

 inter venulas orsis. (Tab. 10.) 



Mindanao, Zamboanga, San Ramon, Copeland 1734. Ad terrain, 1,050 m. s. in. 

 Nearest A. dneitense Carruthera, from which it differs chiefly in the short ami 

 stout rhizome. 



Adiantum spencerianum Copel. n. sp. 



Rhizomate subnullo, paleis laneeolatis, 3 mm. longis; stipitibus con- 

 fertis, 2—15 cm. altis, purpureo-nigris, nitidis, pedibus paleis tenuibus 

 ■> mm. longis deciduis vestitis; fronde 7-17 cm. alta, vel longiore et 

 radicante, 1-2.5 cm. lata, pinnata; pinnis proximis, fere sessilibus, basibus 

 obliquis euneatis, plerumque aeutis, interdum falcatis, marginc acrosco- 

 pica integra vel rarius leviter incisa, recta vel vix curva. margine rbaebis- 

 copica excisa, glabra, papvracea ; venulis liberis, inconspicuis; soris latis, 

 continuis vel interruptis. (Tab. 11.) 



LUZOW, Benguet, Latab, Copeland 1844, 184:1; Adouay, Copeland 1832. Ad 

 aggerea humidos, 1,000 m. >. m. 



Very near the Indian A. edyacoi •Ihii Hooker, from which, however, it seems 

 sufficiently different in the obscure venation and curiously cuneate bases of the 

 usually acute pinna?. It varies greatly according to the illumination. It boars 

 the name of my several-t hues host. I!cv. Irving Spencer. 



