TRICHOMANES. 



379 



T. r. cambricum — cam'-bri-cum (Welsh). 



For the name of this variety we cannot find any authority. It differs 

 from the species in the leafy portion of its handsome fronds being broadly 

 triangular and in their leafits being quite wedge-shaped at the base and also 

 much more numerous. 



T. r. concinnum — con-cin'-num (neat), Moore. 



A very pretty form, with egg-shaped fronds borne on short, scarcely -winged 

 stalks, and leaflets closely set. The pinnules (leafits) are somewhat more 

 elongated and narrower than those of the species. 



T. r. dilatatum — di-la-ta'-tum (enlarged), Backhouse. 



This differs from the species, and indeed from all other known varieties, 

 by its large, very dark green fronds, and by its leafits, which are much less 

 divided than in the type and broadly winged. — Lowe, Our Native Ferns, ii., 

 p. 450. Nicholson, Dictionary of Gardening, iv., p. 81. 



T. r. dissectum — dis-sec'-tum (cut), Moore. 



A variety somewhat similar in size and form of frond to T. r. cambricum, 

 but with leafits cut again into narrow segments ; sometimes these segments 

 are wedge-shaped at the base, when the plant is called T. r. d. cuneatum, 

 for which name we cannot find any authority. 



T. r. Kimzeanum — Kunz-e-a'-num (Kunze's), Hooker. 



The fronds of this variety, native of Brazil, are 1ft. to ljft. long 4 of 

 a somewhat leathery texture, with the stalk and rachis scarcely, if at all, 

 winged ; the leaflets are distant, stalked, the leafits deeply cleft, and their 

 lowest lobes again cut into very long and narrow segments. — Hooker, Species 

 Filicum, i., p. 127, t. 39d. 



T. r. Luschnatianum — Lusch-nat-i-a'-num (Luschnat's), Presl. 



This beautiful variety, also a native of Brazil, is readily distinguished 

 from all others through its fronds being quite stalkless, the leaflets reaching 

 to near the rhizome, and the leafy portion being spear-shaped and tapering to 

 a narrow point. — Hooker, Synopsis Filicum., p. 81. Nicholson, Dictionary of 

 Gardening, iv., p. 81. 



