Pteris.] CLVI. FILICES. 196i 



apparent. Sori continuous along the whole margin except the small rounded or 

 cordate base.— F. v. M. Fragm. v. 126 ; Bedd. Ferns S. Ind. t. 33 ; Bail. Litho. 

 Ferns Ql. 72. 



Hab.: Brisbane River, Moreton Bay, Main Eange, Boolthampton and Itfount Perry. 

 Widely spread over the tropical and temperate regions of the globe. 



6. P. ensiformis (sword-shaped), Bw-m. Fl. Ind. 230, Thes. Zeijl. t. 87 ; 

 Benth. FL Austr. vii. 780. Ehizome creeping. Fronds 9 to 16in. high, pinnate, 

 the stipes without scales. Pinnse when fertile usually linear, entire or the lower 

 ones or nearly all lobed'or again pinnate at the base, the terminal lobe often 2 to 

 4in. long, the lateral ones short, often shortly deourrent ; lobes of the barren 

 fronds or pinnie oblong or ovate and denticulate ; veins forked, transverse from 

 the midrid. Sori continuous round the fertile lobes.— Hook, and Bak. Syn. 

 Filic. 155 ; Bail. Litho. Ferns Ql. 73 ; P. crenata, Swartz ; Hook. Spec. Filic. 

 ii. 163, t. 127 ; E. Br. Prod. 154 ; F. v. M. Fragm. v. 125. 



Hab.: Endeavour Biver, Banhs and Solander; York Peninsula, N. Taylor; Port Denison, 

 Fitzalaii. Very oommoQ in northern localities. 



Banges over tropical and Eastern Asia and the Pacific Islands. 



7. P. umbrosa (shade-loving), R. Br. Prod. 154 ; Benth. FL Austr. vii. 780. 

 Rhizome thick and knotted or shortly creeping. Fronds attaining 2 or 3ft., 

 pinnate, the stipes often slightly scabrous. Pinnae 13 to 21, linear-lanceolate, 4 

 to 6in. long, entire or the lower ones again divided into 3 to 5 similar segments, all 

 more or less decurrent on the rhachis. usually broader and minutely serrulate 

 when barren, and the barren ends of fertile ones often deeply serrate ; veinlets 

 transverse, mostly forked. Sori continued down the decurrent base — ^Hook. 



Spec. Filic. ii. 162, t. 130, Syn. Filic. 155 ; F. v. M. Fragm. v. 126 ; Sieb. Syn. 

 Filic. n. 128 ; Bail. Litho. Ferns, Ql. 74. 

 Hab.: Brisbane River, Moreton Bay. Common on ranges. 



8. P. quadriaurita (4-eared), Retz.; Hook. Spec. Filic. ii. 179, t. 134, Syn. 

 Filic. 158 ; Benth. FL Austr. vii. 731. — Rhizome thick. Fronds pinnate, varying 

 from 1 to 8ft. long. Pinnse mostly opposite, 4 to Sin. long, regularly and deeply 

 pinnatifid, otherwise undivided or the lower ones with one or two similar 

 secondary pinnae on the lower side. Pinnules or segments numerous, broadly 

 linear, often falcate, obtuse, 4 to 8 lines long, confluent at the base, the pinna 

 usually ending in a long, linear-lanceolate point lobed at the base. Sori often 

 not reaching the base of the segments. — Bedd. Ferns S. Ind. t. 31; F. v. M. 

 Fragm. v. 125 ; Bail. Litho. Ferns, Ql. 75. 



Hab.: Cape York Peninsula, Harm's Expedition, N. Taylor; Rockingham Bay, W. Hill, 

 Dallachy ; Daintree River, Filzalan, and other tropical localities. 



Widely spread over the tropical regions of the New and the Old World. 



9. P. tremula (trembling), R. Br. Prod. 154 ; Benth. FL Austr. vii. 731. 

 Rhizome suberect. Fronds 1 to 5ft. (usually 2 to 4) high, glabrous, twice to 

 four times pinnate, not so broadly expanded and the divisions more regular than 

 in P. aquUina, the pinnse mostly opposite. Ultimate segments linear, rather 

 firm when in fruit, J to lin. long, slightly decurrent, membranous flat and 

 serrulate when barren ; veins mostly forked and transverse. Sori usually 

 continuous but scarcely reaching the base of the segments and sometimes 

 interrupted, at length expanded so as to conceal the indusium. — Hook. Spec. Filic. 

 ii. 174, t. 120 ; Syn. Filic. 161 ; Hook. f. Fl. Tasm. ii. 140 ; Sieb. Syn. Filic. n. 

 130 ; Bail. Litho. Ferns Ql. 76. 



Hab.: Common in scrubs North and South. 



Also in Norfolk and Fiji Islands and New Zealand. 



