Colensoane. N. O. Filices. 
DCCCCLXXIX. 
TricHoMaNnEs CoLensor, Hook. /il. 
Caudice gracili filiformi elongato, frondibus oblongis acumi- 
natis laxe pinnatis, pinnis subpinnatifidis laciniis brevibus 
linearibus angustis acutis erecto-patentibus integris vel 
incisis, involucris solitariis basin versus singule pinne 
insertis infundbuliformibus stipitatis liberis, columella 
longissime exserta flexuosa. 
Trichomanes Colensoi, Hook. fil. mst. 
Has. Interior of the Northern Islands, New Zealand, near 
Waikare Lake, Rev. W. Colenso, n. 104. 
A very elegant, and as it appears to Mr. Colenso and to me, 
as well as to Dr. Hooker, an entirely new species. It is very 
slender in every part, in the caudex, in the rather short 
stipes, and in the ramifications of the frond. I find only one 
involucre near the superior base of each pinna, infundibuliform, 
stipitate, and remarkable for the very long flexuose receptacle 
or columella; seven or eight times longer than the involucre. 
Mr. Colenso writes, “This species of Trichomanes was 
discovered on the deep sides of a dark ravine on the banks of 
asmall rivulet, which meandered through the dense and ever 
humid forests of the mountainous region between Waikare 
Lake and Rua Tahuna, in the interior of the Northern Island 
of New Zealand, where it grows very profusely.” 
Fig. 1. Fertile pinna of a frond. f. 2. Involucre and base 
of the receptacle with capsules :—magnified. 
