BY W. W. WATTS. 799 



A. van Rosen burgh [loc. cit.) describes the forma typica as, 

 " Texture subcoriaceous; surfaces naked, not glaucous. Ultimate 

 segments under 4 cm. long, entire or emarginate at the apex." 



Subgen. Platyzoma. 

 G. MICROPHYLLA (R.Br.) Christ; Platyzo^na microphyllum R.Br., 

 Prodr., 160; Gleichenia platyzoma F.y.M. 

 This remarkable fern is said by Mr. Bailey (Fern World of 

 Austr., p.25) to be found "in several parts of N. Australia and 

 tropical Queensland," "on sandy hillocks." I did not find it, 

 but specimens in the Sydney Herbarium (from Boorooboloo, 

 Northern Territory; leg. Baldwin Spencer, in 1902) exhibit a 

 character that has been overlooked in many descriptions. I 

 refer to the presence of very small leaves (apparently the sterile 

 fronds) clustered together at the bases of the fertile fronds. 

 These are not more than one-fifth as long as the fertile fronds. 

 Though overlooked in later descriptions, these small fronds are 

 referred to, as follows, in Robert Brown's original description 

 (loc. cit.) : " Frondes ex eodem rhizomate compresso-filiformes, 

 indivisge " 



SCHIZ^ACE.^. 

 S c H I z ^ A Sm. 

 S. DiCHOTOMA (L.) Sm.; Acrostichitm L. 

 In sandy coastal bush, about one mile north of Cairns Post 

 Office (very tine specimens); August, 1913. 

 S. Forsteri, I did not find. 



L Y G D I U M Sw. 



L. FLEXUOSUM Sw.; L. japonicum Benth., non Sw.; L. semipinna- 

 tum R.Br., fid. Domin. 



Near Cairns; August, 1913. 



I found very little of this fern. Domin holds (Prodr., 208 f.) 

 that the occurrence of L. japonicum Sw., in Australia, is doubt- 

 ful. He gives figures of L.Jiexuosum and L. japonicum, exhibit- 

 ing the very deeply incised segments of the fertile fronds of the 

 latter species. For the present, all the Queensland records of 

 L. japonicum, must apparently be transferred to L.Jiexuosum. 



