1 68 JOURNAL OF SCIENCE. 



Colenso, in Trans. N.Z. Inst., 1888, p. 214. The Chatham 

 Island Dicksonia is said to be intermediate between the Aus- 

 tralian antarctica and the New Zealand fibrosa. 



D. squarrosa, Sw. I cannot separate specifically D. gracilis, 

 Colenso, in Trans. N.Z. Inst., 1882, p. 306. 



Davallia. 



D. Tasmani, Cheesenian ; Field, Ferns of New Zealand, p. 75, tab. 

 24, fig. 5. Kermadec Islands, Cheeseman. Near pyxidata 

 and canariensis. One of the very few endemic plants of this 

 small group of islands. 



Cystopteris, Bernh. 



C.fragilis, Berh. I can only separate as geographical varieties 

 G. novae-zealandice, Armstrong, in Trans. N.Z. Inst., 1880, p. 

 360, and the Australian Woodsia lactivirens, Prentice. 



Lindsaya, Dryand. 



L. linearis, Sw. I can only separate as a slight variety L. trilobata, 

 Colenso, in Trans. N.Z. Inst., 1883, p. 345. 



L. viridis, Colenso, Fil. Nov. Zeal. 14. Allied to L. microphylla, 

 Sw., from which it differs by much closer regularly cuneate 

 final segments, and sub-davallioid sori. 



Adiantum, Linn. 



A. diaphanum, Blume — A. heteromoiphum, Colenso, Field, Ferns 

 N.Z., p. 80, is a variety, and I cannot separate specifically A. 

 folymorphwm and A. tuberosum, Colenso, in Trans. N.Z. Inst., 

 1888, p. 215-217. 



A. ajjine, Willd., var. intermedium, Benth., Fl. Austral, vii., p. 725, 

 Queensland and New South Wales, differs from the N.Z. type 

 by its transversely oblong sori ; var. chathamicum, Field, 

 Ferns N.Z., p. 81, Chatham Island, is less compound than the 

 type, with longer final segments. See also var. heterophyllum, 

 Colenso, in Trans, N.Z. Inst., 1888, p. 218. 



Cheilanthes, Sw. 



C. tenuifolia, Sw. It seems impossible to draw any definite line of 

 demarcation between tenuifolia and Sieberi. I cannot separate 

 specifically C. Kirkii, Armst., in Trans. N.Z. Inst,, 1880, p. 



36, non Hook., (and) Pteris alpina, Field, Ferns of N.Z. 



p. 97, tab. 98, fig. 3. 



Pteris, Linn. 



P. cretica, L I cannot specifically separate the N.Z. I\ loma- 



rioides, Colenso, in Trans. N.Z. Inst., 1880. p. 380 ; Field, 

 Ferns of N.Z , p. 91, tab 25, fig. 4. 



P. macilenta, A. Cunn. I cannot separate specifically P. pendula, 

 Colenso, in Trans. N.Z. Inst., 1888, p. 218. 



