ADIANTUM. 



295 



A. intermedium — in-ter-med'-i-uni (intermediate), Swartz. 



This very handsome, evergreen, stove species, also known under the 

 names of A. fovearum and A. triangulatum, has a very extensive range 

 of habitat, for it is found from Mexico and the West Indies southwards to 

 Peru and Rio Janeiro. Its fronds, which consist of a terminal pinna 

 (leaflet) Gin. to 9in. long and Sin. to 3in. broad and of one to three small, 

 spreading lateral ones on each side, are borne on strong, erect, polished but 

 somewhat tomentose (downy) stalks Gin. to 12in. long, attached to a creeping 

 rhizome (prostrate stem). The pinnules (leafits) are wedge-shaped at the 

 base, . the upper part being parallel with the stalk ; they are of almost 

 leathery texture, of a deep green colour, and conspicuously dented. The 

 oblong sori (spore masses) are numerous and disposed in interrupted, 

 marginal patches one to two lines across, placed round the upper edge and 

 outer two-thirds of the lower one. If only on account of the effect pro- 

 duced by its bold, prominent sori and hirsute (hairy) stalks, this interesting 

 Fern, which somewhat resembles the better-known A. tetraphyllum in general 

 appearance, deserves a place in every collection. — Hooker, Species Filicum, 

 ii., p. 25. Nicholson, Dictionary of Gardening, i., p. 27. Lowe, Ferns British 

 and Exotic, hi., t. 20. 



A. Kalon — Kal'-on (Kalon). A variety of A. Capillus- Veneris. 



A. Kaulfussii — Kaul-fus'-si-i (Kaulfuss's), Kunze. 



A stove species, of medium size, native of the West Indies, Brazil, and 

 Peru, having fronds Gin. to 12in. long and 3in. to 4in. broad, borne on 

 wiry, upright, polished, blackish stipes (stalks) 6in. to 9in. long. These 

 fronds consist of a large, coriaceous (leathery) terminal lobe and of eight to 

 ten pinna? (leaflets) on each side of the midrib ; the lowest, 2in. to 3 in. long 

 and about lin. broad, are cordate (heart-shaped) and auricled (eared) at the 

 base, and are borne on short stalks ; those of the barren fronds are slightly 

 toothed. The sori (spore masses) are disposed in interrupted lines on the 

 margin of the leaflets. — Hooker, Species Filicum, ii., p. 7. 



A. Kunzeanum — Kunz-e-a'-num (Kunze's). This is synonymous with 

 A. cristatum. 



A. laetum — he'-turn (joyful). Synonymous with A. Henslovianum. 



