424 THE BOTANY OF [PART II. 



(3), Cheilanthus (2), Lindssea (3), Loxoma (]), Dick- 

 sonia (1), Aspidium (7), Nephrodium (2), Cyathea (2), 

 Trichomanis (5), Hymenophyllum (13). 



The number of MONOCOTYLEDONOUS or EXOGENOUS plants 

 is very small in comparison with the cellular ones : there are 

 76 species. The grasses have given way to ferns. Near 

 the coast I have never met with grass in any other way than 

 in simple specimens. A little more I found in the fertile 

 district of Kaitaia ; and on the barren volcanic table -land in 

 the interior a coarse wiry grass takes the place of the fern, 

 a species, however, which does not gratify the eye with its 

 verdure, as it has always a dirty yellowish colour. The 

 want of the bright green of the grasses near the coast gives 

 an extraordinary effect to artificially planted grasses, which 

 indeed contrast singularly with the brown tint of the fern. 

 The number of Graminece, or grasses, which have been 

 described is only 24, belonging to the genera Agrostis (9), 

 Phalaris (I), Danthonia (1), Avena (1), Brornus (1), 

 Schrenodorus (1), Triticum (2), Poa (3), Arundo (1), Pas- 

 palum (1), Rottbcellia (1), Spirifex (1), Torrena (1). It 

 must, however, be observed, that some more exist, which 

 have not yet been described. 



If the useful Graminece exist in such a small proportion, 

 the useless, or almost useless, Cyperacece, or Sedge tribe, 

 are represented by an almost equal number as many as 

 20 species. They are found especially on the sandy downs 

 on the sea-shore, and in swampy and stagnant places. 

 There are the following genera: Cyperus (1), Fuirena 

 (1), Trolepis (2), Scirpus (1), Vauthiera (1), Elseocharis 

 (2), Schoenus (1), Lepidosperma (1), Lampocarya (3). 

 Gahnia (1), Morelotia (1), Uncinia (1), Carex (4). 



The nearly-related Restiacece andJunceez have also several 

 representatives Leptocarpus simplex, Luzula picta, Jun- 

 cus maritimus, effusus, filiformis. The latter species covers 

 large districts, hills and plains together, with a stunted fern 

 and a Lycopodium : it is a sure indication of little depth of 

 soil, and of a subsoil through which the water cannot perco- 

 late. Another genus belonging to the same family is Astelia, 



