156 CHUIST. 



10. Hymenophyllum formosum IJrackenr. U. S. Explor. lOxpcd. 16 (1854) 

 268. t. 32. f. n. 



MiNDANAO, Moiint Apo (1442 Copcland) Octobcr, l!t04, alt. 1,800 ni.; (.340 

 IhVore tP Uoovcr) May, 1903. Onr ])lants match tlie forni reprcscnted by Tah. //7 

 Van dcn Hosch, llynicnopliylhiccac Javanicae. 



11. Hymenophyllum Junghuhnii Van dcn IJosch Hynien. .Jav. 00. Tah. 'lil. 

 LuzoN, District of Lepanto, Bagnen (1921 Gopeland) November, 190,5, alt. 



1,050 m. MiNDANAO, Province of Misamis, Mount Malindang (4638 Mcarns d 

 Hutchinson) May, 1906. 



A form with very large sori and with broad segments. 



The Philippine plants refcrred by various authors to H. dilatatuin 8w., are 

 referable to the two above species. 



12. Hymenophyllum australe Willd. Sp. Pl. 5: 527. 



LuzoN, District of Lepanto, Mount Data (1873 Vopcland) October, 1905; 

 Province of Benguet, Mount Tonglon (Lolier) ; (5053 Curran) August, 1906. 

 MiNDANAO, Mount Apo (324 DeVore c(- Hoover) May, 1903. 



The Pliilippine form has very narrow segments and is very compound, quadri- 

 pinnatifid. Under the lens the margins are very finely denticulate. 



TRICHOMANES Linn. 



13. Trichomanes parvulum Poir. in Lam. Encycl. 8: 46. 



LuzoN, Province of Bataan, Mount Mariveles (177 Whitford) May, 1904. 



14. Trichomanes diffusum Bhunc, Enuin. 225. , 

 LuzoN, Province of Laguna, Mount Maquiling (5137 Merrill) March, 1906, 



300 m. alt. Mindanao, Province of Zamboanga, San Ramon (1652 Copeland) 

 April, 1905, 700 m. alt. 



15. Trichomanes nitidulum Van den Bosch Hymen. Jav. 21. 

 LuzoN, Province of Benguet, Baguio (6023 Elmer) March, 1904. 



16. Trichomanes rhomboideum J. Sm. in Hook. Journ. Bot. 3: 417; Van den 

 Bosch Hymen. Jav. Tah. 2//. 



LuzoN, Province of Bataan, Mount Mariveles (3121 Merrill) October, 1903; 

 (206 Copeland) January, 1904. 



This form, of the Cephalomancs group whicli is richly developed in the Philip- 

 pines, is distinguishable by its rotuidcd piniiBe, its elongated aristate teeth and 

 long sori. 



17. Trichomanes Javanicum Blume, Enum. 224; Van den Bosch Hymen. Jav. 

 Tah. 22. 



LUZON, Province of Rizal, Mabacal (Lohcr) March, 1906; Province of Lagima, 

 Mount Maquiling (Loher) January, 1906; Province of Bataan, Moimt Mariveles 

 (263, 513 Whitford) July, 1904; (2397 Bordcn) January, 1905; (2420 Meyer) 

 January, 1905; (207 Copcland) February, 1904. Negros, Gimagaan River (1603 

 Whitfurd) March, 1906. Palawan (578 Foxworthy) April, 1906. 

 Conunon and widely distributed in the Philippines. 



Var. intercalatum n. var. 



Soris margini anteriori, apici saepcqiie parti suiieriori marginis pos- 



terioris impositis numerosis (12) longe exsertis campanulato-clavatis ore 



non (lilatato, dentibus marginis posterioris elongatis aristatis conspicuis. 



Pinnis saepe dissectis. 



LuzoN, Province of Laguna, Mount Maquiling (Lohcr) January, 1906; Provinee 

 of Rizal, Oriud (Lohcr) February, 1906; Province of Benguet, Sablan (6214 

 Ebner) April, 1904. 



