ASPLENIUM. 



613 



A. m. trapeziforme — trap-e-zif-or'-me (rhomb-shaped), Clapham. 



A rather dwarf variety, of robust habit, found in several localities, 

 originally at Cloughton Bay, near Scarborough ; later on at Salcombe, near 

 Kingsbridge, Devonshire, and at Torquay ; at St. Just, Cornwall, and in 

 County Down. Its fronds, of very leathery texture and deep green in colour, 

 are furnished with short leaflets that are rounded but hardly eared, the lower 

 ones being deflexed (thrown back), trapeziform, the others often overlapping. 

 — Lowe, Our Native Ferns, ii., p. 198, figs. 540 and 541. 



A. m. Yariabile— var-i-a'-bil-e (variable), Monkman. 



This very singular form, originally found amongst a batch of seedlings 

 in the neighbourhood of Scarborough, and later on high up among the rocks 

 above the caves of Kynance Cove, near the Lizard, on the Cornish coast, is 

 of erect habit and dwarf dimensions. Its fronds, which are all more or less 

 different in form and seldom more than 6 in. long, are very dark shining- 

 green ; they have about one-third of their length ramose, sometimes branching 

 several times, and are usually furnished with irregularly- shortened leaflets, 

 though these are sometimes totally wanting, — Lowe, Our Native Ferns, ii., 

 p. 191, fig. 537. 



A. Martensianum — Mar-ten-si-a'-num (Martens'). A form of A. bulbiferum. 



A. (Diplazium) maximum — Dip-laz'-I-um ■ max'-im-um (largest), Don. 



This gigantic-growing, stove species, native of North India, is remarkable 

 for its ample fronds, several feet long, 2ft. to 3ft. broad, and borne on firm, 

 erect stalks 2ft. long or more and scaly only at the base. The numerous 

 leaflets are from 9in. to 18in. long, 4in. to Sin. broad, divided into numerous 

 distinct, sub-sessile (nearly stalkless) pinnules 2in. to din. long, of a soft, 

 papery texture, with their edge more or less lobecl. The sori (spore masses), 

 disposed close to the midvein, are about two lines long. — Hooker, Synopsis 

 Filicum, p. 239. Nicholson, Dictionary of Gardening, i., p. 132. 



A. (Diplazium) melanocaulon — Dip-laz'-i-um ; mel-an-oc-au'-lon (black- 

 stalked), Baker. 



A stove species, from Fiji and Aneitum, somewhat resembling in its 

 mode of growth A. arbor escens, from which it differs by the more leathery 



