APPENDIX. 293 
Cystoptebis Montana (p. 123), alpina, mountain; 
furcans, forking. 
Lastba:a cristata (p. 143). — Several variations have 
been observed, such as uliginosa, with its leafits more 
pointed ; but this and other minute differences are not 
permanent. These are spinulosa, small-spined; spinu¬ 
losa crispa, curled ; spinulosa furcans, forking ; spinu¬ 
losa interrupta, stopped; spinulosa nana, dwarf; 
spinulosa strigosa, scaly ; spinulosa tripinnata, thrice- 
pinnate. 
Last ba;a dilatata (p. 149). — No fern is liable to 
Wore trivial alterations of form than this. Those who 
wish for full particulars relative to these, and the 
Variations of other species, cannot do better than 
consult the “ The Handbook of British Ferns,” written 
by that entire master of his subject, Mr. Moore, 
Curator of the Chelsea Botanic Garden. We shall do 
little more than enumerate those variations. Alpina, 
fronds narrow; angusta, fronds narrow, bi-pinnate; 
Qhanterice, fronds narrow, truncated at bottom; col- 
Una, fronds narrow-ovate; deltoidea, fronds deltoid; 
distans, leaflets distant from each other; fuscipes, 
stem brown behind; glandulosa, fronds thickly clothed 
beneath with stalked glands ; interrupta, leafits irre¬ 
gular, and partly without leafy surface ; lepidota, stem 
and leaf-stalks covered with contorted scales (Mr. 
Moore doubts this being native, or, if native, whether 
•t is not a new species) ; micromera, leafits very finely 
divided ; nana, fronds dwarf, ovate ; obtusa, leafits 
