Van ALDERWEREi.T VAN ROSENBUROH : MaUiyan Ferns 12. 20Q 



Hymcnophyllum brcvidens V. A. V. R., Bull. Btz. VII (1912), 20; Mai. 

 Ferns & Ali. Supplem. I, 9ô. 



Near tlie precediiio, but the stipes mucli thicker, and the serratures 

 of the ultimate segments mucli shorter; surfaces wlien dry fuscous. 



Hymcnophyllum Reinwardtii V. D. B. in Ned. Kruidk. Arcli. IV, 399 ; 

 V. A. V. R., Mal. Ferns 80. 



Spécimens gathered in S u m a t r a (Mt. K o e r i n t j i, H. A. B. BiJNNEMEIjER 

 Nos. 9245^, 9633, 9762, 9826, 9910, 9980) are distinguished in liaving the 

 fronds larger, to 25 cm. long, to 10 cm. broad, the ultimate segments 

 plane or nearly so; sori often axillary, and the valves of the indusium 

 varying from round to broadly ovate or transversely oblong, quite entire. 

 (Forma integrivalve). 



H. J. Lam's No. 1782 from New Guinea has the edges more 

 conspicuously crisped than usual. 



Hymcnophyllum sabinifolium BK., Hk. Bk. Syn. Fil. 71; V. A. V. R., 

 Mal. Ferns 81. 



This species is unknown to me. — Plants gathered in S u m a t r a ( Del i, 

 near Bandar-baroe, epiphytical in forest, ait. 850 m., J. A. LôRZiNG No. 

 7010, 24 November 1919), which agrée very well with BAKER's diagnosis 

 of this, are, however, distinguished in having the dimensions much smaller; 

 both stipes and fronds are at best 2'/n cm. long, and the latter roundish 

 to deltoid, about as broad as long. The edges of the wings and segments are 

 so strongly crisped that the relatively long, subulate-aristiform toothlets are 

 spreading in various directions. 



Lindsaya cyathicola COPEL. in Philipp. Journ. of Sci. 1^ , Supplem. 

 149, tab. 5; V. Â. V. R., Mal. Ferns 263. 



A spécimen received from Manila (Bur. of Sci., No. 32029; coll. 

 J, K. Santos) is distinguished in having the stipes purplish at the very base 

 only, for the rest brownish or stramineous, as is the rhachis, the rhachis 

 4-angular and more or less distinctly 4-sulcate, the leaflets with the 

 lobes entire, or repandulo-crenuiate at the truncate or rotundate-truncate 

 apex, the sori mostly uniting the apices of 2 3 veinlets of forked or 

 3-furcate veins. 



Lindsaya hymenophylîoides Bl., Enutn. PI. Jav. II, 218; V. A. V. R , 

 Mal. Ferns 264. 



V. M. A. BEGULN'S No. 1)16 from. Te rnate (For am. adiah i) has the 

 leaflets \vith the higher segments simple, the central and lower segments 

 varying from once to twice forked, and the apices of the ultimate 

 segments rounded. 



