Oliver. — Vegetation and Flora of Lord Howe Island. 125 



Cyclophorus confluens (R. Br.) C. Chr. 

 Poly f odium confluens R. Br., Prodr. Fl. Nov. Roll. 146, 1810. 



Recorded : Moore, Lord Howe Ld. Official Visit, 26, 1870 (Polypodium) ; 

 Bentham, Fl. Austr. vii, 767, 1878 (P. confluens) ; Hemsley, Ann. Bot. x, 

 266, 1896 {P. confluens). 



Habitat : Northern Hills (Watts). 



Distribution : Norfolk Island, Australia, New Caledonia. 



Platycerium bifurcatum (Cav.) C. Chr. 



Acrostichum bifurcatum Cav., Anal. Hist. Nat. i, 105, 1799. 



Recorded : F. Muell., Fragm, Phytogr. Austr. ix, 78, 1875 (P. alcicome) ; 

 Hemsley, Ann. Bot. x, 267, 1896 (P. alcicome). 



Habitat : On rocks and trees in forest from sea-level to 200 m. alt. 

 Distribution : Australia, New Caledonia. 



Leptopteris Moorei (Baker) Christ. 

 Todea Moorei Baker, Journ. Bot. xi, 16, 1873. 



Recorded : Baker, I.e. ; Bentham, Fl. Austr. vii, 700, 1878 {Todea) ; 

 Hooker, Icon. Plant, t. 1697, 1887 {Todea) ; Hemsley, Ann. Bot. x, 267, 

 1896 {Todea). 



Habitat : Summit of Mount Grower (Watts). 



Distribution : Endemic. Allied to L. hymenophylloides of New Zealand. 



Marattia fraxinea Sm. var. howeana W. R. B. Oliver n. var. 

 Marattia fraxinea Sm., PI. 1c. hied. 2, t. 48, 1790. 



Recorded : Moore, Lord Howe Id. Official Visit, 26, 1870 {M. salicina) ; 

 Bentham, Fl. Austr. vii, 695, 1878 ; Hemsley, Ann, Bot, x, 267, 1896 ; 

 Watts, Proc. Linn. Soc. N.S.W. 37, 396, 1913 {M. fraxinea var. salicina). 



Pinnae oblongae, 30 cm. long., 12 cm. lat. Pinrmlae oblongae, obtusae, 

 ad basim oblique cunatae, 70-90 mm. long., 18-20 mm. lat. Sori in venis 

 circa 2 mm. a margine distantes ; sporangia 10-16 in omni synangio. 



Fronds large, 3-4 m. long, deltoid, 2-3-pinnate. Pinnae oblong, 30 cm. 

 long, 12 cm. broad. Pinnules shortly stalked, oblong, obtuse, obliquely 

 cuneate at the base, margins crenulate, 70-90 mm. long, 18-20 mm. wide. 

 Veins simple or once forked. Sori oblong, 2-3 mm. long, on the veins 

 about 2 mm. from the margin ; sporangia 10-16 in each synangium. 



Distinguished by the short obtuse pinnules with sori distant from the 

 margin. But for the variation exhibited by M. fraxinea I would not have 

 hesitated to set up the Lord Howe Island form as a distinct species. 



Habitat : Side of stream in ravine, Deep Creek, in forest ; and young 

 plants seen in forest in Erskine Valley. Probably formerly plentiful in 

 forest, but now nearly exterminated by pigs. 



Distribution of M. fraxinea : Australia, New Caledonia, Polynesia, 

 Malaya, Philippines, India, South Africa. 



