PHILIPriNH SPECIES OF DRYOPTERIS. 199 



Vcar. degener n. var. 



Ehizomate elongato subrepente, pinnis ovatis saepe obovatis basi 

 attenuatis, obtusissimis, obtuse crcnato-lobatis, apice frondis elongato 

 lato obtuse lobato, pinnis sterilibus brevius (G cm.) fertilibus saepe longius 

 (usque ad 35 cm.) stipitatis, pinnis fertilibus remotis, soris irregulariter 

 sparsis plus minus rotundis. Tota planta a 20 cm. us^jue ad 43 cm. 

 alta, textura crassiuscula, colore ol)scure fere atroviridi, pubescentia 

 imprimis rhacheos densa, strigosa, brunnea. 



LuzoN, Province of Rizal, Angilog (Lohcr) February, lOOG, tlie larger form; 

 Montalban (Lohcr) Marcli, 1906, the smaller forni. 



This is an accentuated variation of the normal form, the length of the nierely 

 lobed apex and the pinnse, scarcely coarsely crenate, giving the plant a singular 

 aspect. 



Var. subsimplicifolia n. var. 



Snialler, distinguished from the preceding by its one distinct terminal elongated 

 [)inna, nearly entire, and in the lateral pinnse being very slightly developed and 

 auricle-like. 



LuzoN, Province of Tayabas (Infanta) (784 Whitford) September, 1904. 



19. Dryopteris diversiloba (Presl) n. subsp. Nephrodium diversilobum Presl 

 Epim. (1849) 47; Mett. Aspid. 100. Goniopteris asymmctrica Fee Gen. 253. 



Rhizomate debili, elongato, plus minus repente, stipitibus plus minus 

 fasciculatis fere caespitosis aut subsolitariis, debilibus flexousis 8 cm. 

 longis, fronde oblonga 10 cm. longa, 7 cm. lata, pinnata, pinnis subpe- 

 tiolatis rhombeis aut lata ovatis obtusis aut in apicem lanceohitum 

 prolongatis 5 usque ad 7 utrinquc 4 cm. longis, 3.5 cm. latis basi 

 saepe attenuatis sive hastulatis aut subcordiformibus, crenatis, apice 

 lobatis lobis valde irregularibus, brevibus et usque ad 3 aut 3 cm. longis, 

 lanceolato-obtusis 3.5 mm. kitis mixtis. Apice frondis saepe lato, valde 

 elongato, lobato; pinnis fertilibus vix contractis, saepe apice solummodo 

 sorifero, soris minutis exindusiatis numerosis irregulariter sparsis rariter 

 seriatis saepe elongatis. Tota planta griseo pubescente, textura herbacea, 

 colore dilute viridi-griseo. 



LuzoN, Province of Nueva Viscaya, Quiangan ( l(i2 Mcrrill) June, 1902: 

 Province of Rizal, Mabacal (Loher) March, 1906; northern Luzon (11611 War- 

 burg) 1888. Negros, Gimagaan River (83 Gopeland) 1904. Mindanao, Province 

 of Zamboanga, San Ramon (1547, 1774, 1754 Gopeland) November, 1904, April, 

 May, 1905: Province of Misamis, Mount Malindang (4()1.'?, 4710 Mearns tC- 

 Hutchinson) May, 1906: District of Davao (698 Gopeland) March, 1904: 

 Province of Surigao (252 Bolster) April, 1906. 



Apparently common and widely distributed in the Pliilippincs; endemic. 



This is a form of the D. omwscens group, but so accentuated, and at tlie sanie 

 time so widely distributed (it should be one of tlie most common ferns in the 

 Archipelago), that it should be recognized as a subspecies. A small plant, almost 

 turf forming with elongated, weak and often running rhizomes, the fronds not, 

 or but littlc dimorphous, the pinnse few, short, broad, nearly square and very 

 irregularly lobed, the lobes sometimes short and obtuse, sometimes greatly 

 elongated. The specimens witli the elongated pointed pinnte have the appearance 



