Colensoane. N. O. Filices. 
TAB. CDXXII. 
Preris (ALLOsORUS) ROTUNDIFOLIA. Forst. 
Frondibus pinnatis, pinnis alternis obtusissimis cum mucro- 
ne glabris obsolete nervosis, superioribus ovato-ellipticis basi 
truneatis, inferioribus rotundatis basi cuneatis, soris latis con- 
tinuis demum nudis, stipite basi scabro reliquo rachique 
rufo-hispidis paleaceisque. 
Pteris rotundifolia. Forst. Prodr. n. 420. Willd. Sp. Pl. v. 5, 4. 
Bp. 563. Sw. Syn. Fil. p. 102 et 297. Rich. Fl. Nov. Zeal. p. 78. 
All. Cunn. Bot. N. Zeal. in Hook. Comp. Bot. Mag. v. 2, p. 355. 
Has. New Zealand, Middle Island, Forster. Dry forests on 
the banks of the Kaua-Kaua and Wycady rivers, Bay of 
Islands. All. Cunningham, W. Colenso, Esq. Astrolabe Har- 
bour. D’Urville. 
This beautiful plant appears to grow in tufts; the fronds, in- 
cluding the stipes, one anda half and two feet high. Stipes 
and rachis perfectly terete, red-brown, glossy; the base of the 
former is rough, scarcely hispid, the rest clothed with spreading 
ferruginous rigid hairs and scales. The pinnee are about } of 
an inch long, of a pale very opaque green, paler still below, and 
there having, generally, a line of paleaceous sete ; the rest quite 
glabrous and exhibiting no trace of nerves; above, in the dry 
state, the nerves are very indistinctly seen, pinnated on the 
costa and dichotomous; and it is on the branches within the 
margin that the sori form a continued broad line, at first covered 
with the marginal involucre, afterwards the involucre spreading 
open and exposing the sori. 
