1984 OLVI. FILICES. [LygoMwrn, 



1. I., dichotomum (divisions in pairs), Sw. Stem climbing. Primary 

 petiole so much reduced that the fork seems almost to spring from the mam 

 rhachis; secondary 1 to 2in. long, iirm, naked. Pinnules digitate with 5 to 6 

 lobes reaching nearly down to the base, or once or even twice forked ; ultimate 

 barren divisions 4 to 8 or even 12in. long, ^ to $in. broad, the fertile ones 

 contracted, sometimes so much so that the lamina is nearly lost ; the spikes 1 to 

 2 lines long, in close marginal rows ; texture sub-coriaceous ; surface naked.— 

 Baker in Synopsis Filicum ; Bail. Litho. Ferns Ql. 5. 



Hat.: Musgrave Electric Telegraph Station, T. Barclay-Millar. 



The portion forwarded was sterile and small, but doubtless belonged to the above species. 



2. I., scandens (climbing), Swartz; Hook, and Bak. Syn. Filic. 437 

 Benth Fl. Austr. vii. 691. Stems rather slender, but twining and climbing to a 

 considerable extent, glabrous or slightly pubescent. Fronds of each pair pinnate. 

 Pinnules 6 to 10 or more, from cordate-ovate to oblong-lanceolote or hastate, 

 varying from ^ to IJin. long, often shortly lobed at the base, and always 

 articulate on a slight thickening of the apex of the petiolule, which persists on 

 the common rhachis after the pinnules have fallen off. Veins forked, free, 

 radiating from the petiolule, with a more or less distinct central nerve. Sori 

 protruding from the margins of pinnules similar to the barren ones, sometimes 

 all very short with 8 to 6 pairs of spore-oases, sometimes in the same specimen 4 

 to 5 lines long, with 12 to 15 pairs of spore-cases. — Bedd. Ferns S. Ind. t. 61 ; 

 L. microphyllum, E. Br. Prod. 162 ; F. v. M. Fragm. v. 118 ; Bail. Litho. Ferns 

 Ql. 6. 



Hab.: Sandy Cape, Hervey Bay, H. Brown; Cape York and Endeavour Biver, W. Hill, 

 Daemel, N. Taylor : Eockingham Bay, Dallachy ; Port Denison, Mtzalan ; Eookhampton, 

 Thozet ; Brisbane River, Moreton Bay, A. Cunningham, F. v. Mueller. Mostly met with in 

 swamps. 



Widely spread over tropical Asia, received also from tropical Africa. 



3. L. reticulatum (netted), Schkuhr, Spec. Filic. 133, t. 139 ; Benth. FL 

 Austr. vii. 692. Habit of the larger specimens of L. scandens, and the 

 pinnules similarly articulate on the petiolule, but usually larger, lanceolnte, 

 rather more rigid, often above 2in. long, the lower ones of the frond often 

 again pinnate, with 3 to 5 secondary pinnules. Veins forked, diverging from a 

 central nerve and occasionally crossing each other or anastomosing. Sori small, 

 usually numerous and crowded along the margins, each with 3 to 12 pairs of 

 spore-cases. — Hook, and Bak. Syn, Filic. 489 ; Hydroglossum scandens, Presl ; 

 Bail. Ql. Ferns, 62 ; Bail. Litho. Ferns Ql. 7. 



Hab.: York Peninsula, N. Taylor ; Daintree Biver, Fitzalan ; Rockingham Bay, Dallachy ; 

 frequently found in dense scrubs. 



Also in the Pacific Islands where it is called " Wa Kalou," i.e. Pevn of God, and was at one 

 time used to decorate temples. 



4. Ii. Japonicum (of Japan), Swartz ; Hook, and Bak. Syn. Filic. 439 ; 

 Benth. Fl. Austr. vii. 692. Fronds pinnate as in L. scandens, but the pinnules 

 much longer and narrower, not articulate but often very narrowly Recurrent on 

 the petiolule, and usually sprinkled with short hairs, the lower ones of each frond 

 3-fid or pinnate with 3 to 5 secondary pinnules, the central one lanceolate, varying 

 from 1 to 6in. long, the lateral ones shorter, entire, or toothed when barren, the 

 veins free ; fertile fronds either similar to the barren ones or reduced to a 

 branched rhachis. Sori forming short linear marginal lobes as in L. scandens. — 

 L. semibipinnatum., R. Br. Prod. 16ii, F. V. M. Fragm. v. 113 ; Bail. Litho. Ferns 

 Ql. 8. 



Hab.: Etheridge River, GitJIiwcr; Cape York, DaemeJ ; York Peninsula, W. Toj/Ior ; Endeavour 

 River, A. Cunningham, G. Brown; Dayman's Isle, 11'. HtU; Rockingham Bay, Dallachy; 

 found on the borders of rivers and scrubs. 



Spread over the Malayan Archipelago, East Indies and Eastern Asia to Japan, 



