PROF. M. AV. HAURINaTOX ON TROPICAL FERNS. 29 



in a row on each side of the midrib, regular, falling a little short 

 of midrib and margin. 



Growing in small clusters on tree-trunks, Mount Mahayhay, 

 Luzon. 



This species has affinities with A. lunulatumy Sw., -4. persicifo- 

 liumj J. Sm., and A, ohtusifolium^ L. 



AsPLExiuM RESECTUM, Smith. Mouutaius east of Changwha, 



Formosa. 

 A, AFFiNEj/SM^arfr. Luzon. 



A. lanckum:, T/m72&. Kelung^ Formosa. 



A. OULTRATUM, -M"^//. LuZOU. 



A. BANXAMENSE, Bokev. Balabac Island, Philippines. 



A. japontcum:, Thunhy var. coreanum, Baker. Changwha, 



Formosa. 

 A. LATiFOLiUAJ,Da/r. Tsuisia, Formosa. 



DlDYMOCnL^KA LUKULATA, DeSV. LuZOU. 



ASPIDIUM ACULEATUM, Sw. LuzOU. 



A. AMABILE, Blume, Posia, Formosa. 



A. YARiuM, ^S'?^. Posia and Kelung, Formosa. 



A. ARISTATUM, Sw, Luzou ; Posia, Formosa. 



A. FALCATUM, Sio. Kcluug, Formosa. 



Nephrodium decursivo-pinnatum, Baker. Posia, Formosa. 



N. IMMERSUM, Hooker. Sides of volcano, Ternate. 



53*. N. (Lastrea) Luersseni, Sarrington^ n. sp. 



Stipes clustered, firm, shining, light purplish ; frond 11-21 feet 

 long, 6-10 inches broad, oblong, tapering abruptly to the base ; 

 pinnae 4-8 inches long, 1-1| inch broad, lanceolate, acuminate, 

 jointed at the base, cut down almost to the rachis (rarely quite to 

 the rachis) into numerous linear or oblanceolate lobes, which are 

 1-1^ inch long and 1-1^ line broad ; the lowest pinnae very small ; 

 texture membranaceous ; surface naked ; veinlets 8-12 on a side, 

 simple, free, distant ; sori one for each vein, marginal. 



Bulukai Island, Philippines. Growing in clusters on the 

 margin of a pond. Nearly related to N. prolixiim^ Baker. 



N. FiLix-MAS, Bich. Ternate. 



N. Eatoni, Baker^ var. formosanum, Harrington^ n. var. 



Smaller and more robust than the type ; the sori are larger and 

 more crowded. 



N. ODORATUM, Baker. Near Takow, Formosa. New to 



Formosa. 

 155*. N. Bakert, Harrington^ n. sp. 

 Stipes clustered, light brown, vlUose or scaly, 2-5 inches long; 



