48 I. — riLiCEs. [Tricliomanes- 



long, lanceolate or linear-oblong, 3-4-pinnatif}d or almost quite pin- 

 nate ; main rachis very narrowly winged ; pinnse crowded, broadly 

 lanceolate, ascending or recurved, 2-3-pinnatifid ; ultimate segments 

 narrow-linear. Sori few, at the base of the upper side of the pin- 

 nules ; involucres funnel-shaped, erect, free, shortly stalked ; recep- 

 tacle more or less exserted. 



Synonyms. — T. leptophyllum, ^. Gunn. ; T. cunnihghamii, V. den 

 Bosch. 



Bistrihution. — Confined to New Zealand, and by no means a 

 common species. In the North Island it occurs at a good many 

 localities; e.g., Hokianga, Auckland district, Pirongia, Tauranga, 

 and the Thames, and ascends to about 2,700 ft. In the South Islaad 

 it ranges from Nelson down the W. Coast to Dusky Bay, but is 

 never generally distributed. 



7. T. rigidum, Swartz ; var. elongatum, A. Cunn. 

 A dark-green tufted species, with numerous rigid fronds 

 ascending from a short, woody, horizontal rhizome. Stipes 2-8 in. 

 long, stout, wiry, naked or very slightly winged above, sparingly 

 hairy at the base. Fronds slightly coriaceous, very dark, 4-10 in. 

 long, deltoid or ovate, acuminate, 3- or 4-pinnatifid or quite 2-pin- 

 nate, the main rachis being hardly winged ; pinnse crowded, imbii- 

 cate, ovate or oblong-cuneate ; pinnules deeply pinnatifid ; ultimate 

 segments broad, entire or toothed at the apices. Sori very numerous, 

 axillary ; involucres cylindric, mouth slightly dilated and 2-lipped; 

 receptacle long, rigid, exserted. 



Synonyms. — Very many names have been given to this species 

 from other parts of the world, but as these have not been used in 

 connection with the New Zealand form, it is quite unnecessary to 

 detail them. 



Distribution. — A very wide-ranging species, occurring throughout 

 tropical America, S. Africa and many of its islands. Southern India 

 and Ceylon, China, Japan, Malay Peninsula, and many of the Poly- 

 nesian Islands. 



It appears to prefer deep, dark woods, and is said in the " Hand- 

 book to the N.Z. Flora " — on the authority of Banks and Solander — 

 to be abundant throughout both islands. It is common in the North 

 Island, particularly in the northern portion of it, and ascends to 

 1,500 ft. In the South Island, however, it is rare, and does not 

 occur, as far as I am aware, to the south of Banks' Peninsula. 



Genus IX.— DAVALLIA,* Smith. (PI. I. fig. 9.) 



Rhizome wide-creeping, and more or less scaly. Frond compound, 

 subcoriaceous in texture, veins always free. Sori oblong or globose, 

 on or near the margin. Involucre coriaceous, terminal on the veins, 



* In honour of a Swiss botanist, Edmd. Davall. 



