LINDSAY A. 



369 



L. trapeziformis — trap-e-zif-or'-mis (diamond-shaped), Dryander. 



A robust species, also known as L. horizontalis and L. quadrangular is, 

 native of Tropical America, from Cuba and Guatemala to Rio Janeiro, also 

 of Ceylon and the Malayan Peninsula and Islands. Its elegant fronds. Gin. 

 to 15in. long, produced from a short- creeping rhizome (stem), and borne on 

 strong, erect stalks 6in. to 12in. long, are composed of a long, entire point 

 and from one to four pairs of rigidly- spreading branches, which are often Gin. 

 to 12in. long. The leaflets have their lower line nearly straight or curled 

 upwards or downwards, and the upper ones are closely placed but scarcely 

 overlap ; all are of a soft, papery texture and somewhat transparent. The 

 sori (spore masses) are disposed in a continuous line round the upper margin. 

 The whole plant is of a brilliant green colour, which renders it highly 

 attractive. — Hooker, Species Filicum, i., p. 214. Nicholson, Dictionary of 

 Gardening, ii., p. 281. 



This species is very variable, and some of its forms are very handsome ; 

 those best known are here described : 



L. t. caudata — cau-da'-ta (tailed), Hooler. 



A large, handsome, Cingalese form, with more branches than are usually 

 found on the typical form. 



L. t. laxa — ^lax'-a (loose), Kunze. 



A form with the upper margin of the leaflets broadly lobed, so that the 

 line of fructification is more or less interrupted throughout. 



L. t. L'Herminieri — L'Her-min-i-e'-ri (L'Herminier's), Fee. 



A plant from Guadeloupe, with the pinnules (leafits) broadest at the 

 outer edge and the upper margin concave. 



L. (Isoloma) trichomanoides — Is-ol-o'-ma ; trich-om-an-o-i'-des (Tricho- 

 manes-like), Dryander. 

 A distinct and pretty, dwarf-growing, greenhouse species, native of New 

 Zealand, Tasmania, and New South Wales, mth oblong fronds 4in. to 9in. long 

 and 2in. to Sin. broad, produced from a creeping rhizome (stem) of a scaly 

 nature, and borne on slender, wiry stalks 4in. to Gin. long, of a chestnut- 



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