AUSTRALIAN FERNS. 51 



adds Deparia Macrcei, (sometimes united witli Diclcsonia), which 

 it seems has been found at Illawarra. In this genus, the sori are 

 marginal at the apices of the segments, on short teeth, pointing 

 forwards, always from the apex of a vein. Sir "William Hooker 

 gives an elegant figure of the allied species D. Mathewsii, and 

 probably it may have been seen under cultivation in Sydney by 

 some of my readers. According to the latest opinion expressed 

 by Dr. Mueller, Hymenopliyllum flabellatum, H. nitens and H. 

 crispatum, should be regarded as varieties of H. demisswm, and H. 

 Wilsoni, must be united with H. Tunbridgense. TricJiomanes 

 rigidum (under which T. setiloba with the divisions of the pinnules 

 separated into setaceous segments is included) has been recently 

 found at Eockingham Bay, and Mr. Oldfield has reported the 

 occurrence of T. reniforme in some part of Queensland. T. 

 venosum, which is usually found on the caudices of tree ferns, was 

 collected by the writer in the crevice of a rock at Manly Beach, 

 but not in a state of fructification. 



SUB-ORDER 3. Davattiece. 



The genus Davallia (from M.Davall, a Swiss Botanist), has dorsal 

 sori, near, or at the margin of the frond, terminal upon a vein. 

 The involucre is somewhat oval, and attached to the under side 

 of the sori. This genus is represented in Australia by four 

 species D. elegans, D. pyxidata, D. polypodioides or D. flaccida, 

 and D. pedata, lately found at Eockingham Bay. Our D. pyxi- 

 data comes near to D. Canariensis or the Hare's foot fern, and is 

 figured by Hooker as an interesting species, but he remarks that 

 it sometimes differs so much even in the same frond that one por- 

 tion of it approaches some of the narrow states of D. solida, 

 whilst another resembles D. Canariensis. My notice of this sub- 

 order ends with the genus Lindscea (so named by Dryander in 

 honour of Lindsay), which has linear sori, parallel to the margin, 

 and generally near to it, the involucre arising from the apex of a 

 vein. Brown's species are four, L. iinearis, L. lanceolata, L. 

 media, and L. micropliylla. The first and last of these are small 

 ferns very common in Eastern Australia the former growing 

 generally in a scattered manner under the shade of a tree or 

 shrub, and the latter from the crevices of rocks in moist places. 

 L. lanceolata is united with L. ensifolia by Sir W. Hooker, but L. 

 pentaphylla (collected in New Holland by Mr. Bynoe), is re- 



