802 NOTES FROM THE BOTANIC GARDENS, SYDNEY, NO. XVI., 



they are still smaller, the largest Australian specimen seen not 

 exceeding 6 inches. 



Hymenophyllum Walleri, .sp.nov. 



Evelyn Scrub, near Herberton, North Queeusland(R. F. Wallei-; 

 November, 1908). 



Rhizome filiform, sparingly hairy with somewhat rufous scaly 

 liairs. Stipes slender, very sparingly scaly-hairy or naked when 

 old, not winged or very narrowly so in the uppermost part, about 

 ^ to I inch long. Fronds dark -green, ovate, about 1^ inch long 

 and 1 inch broad, sometimes narrower in the sterile fronds, cut 

 down to the narrowly winged rhachis into 5-7 pinnse on each side. 

 Pinme spreading, the lower ones sometimes almost horizontally, 

 ovate to ovate-lanceolate in outline and overlapping each other, 

 pinnately lobed rather above half-way to the midrib, the lobes 

 shallowly lobed again; ultimate lobes short and broad, roundeJ 

 and with quite entire margins. Sori not numerous, terminal on 

 the upper lobes of the uppermost pinnae; indusium almost orbi- 

 cular, about one line long and at least as broad, tlie valves entire 

 or with slightly uneven margins. Receptacle included. 



Rhizoma filiforme; stipes gracilis vix apice alatus, 7-10 mm. 

 longus. Frondes ovatse circiter 3| cm. latte, pinnatte 5-7 laciniis 

 utroque latere; laciniis latis, lobis pinnatis et rursus lobatis; 

 lobis ultimis brevibus, latis, rotuudatis, margine integro. Sori in 

 lacinulis laciniarum apicalium terminales; indusio orbiculari, cir- 

 citer 2 mm. longo latoque, margine integro; receptaculo incluso. 



The chief characteristic of the new fern is the small frond with 

 a fringe of sori on the top; as far as seen, the sori seem to be 

 strictly confined to the top of the fronds. It is not closely allied 

 to any of the described Australian species but comes very near to 

 H. paniculijiorum Pr., figured in Van den Bosch's " Hymea- 

 ophyllaceje Javanicse," t.xxxiv. The chief point of diiference be- 

 tween the two ferns is that the indusium is twice as long as broad 

 in the Java fern, and at least as broad as long in our new species; 

 and the fronds are also broader in our fern, and the primary 

 pinnse are less deeply cut-down. 



