Colenso. — On the Botany of New Zealand. 347 



almost sub-laciniate or pinuatifid-serrate, tlie most prominent teeth or 

 laciniations usually bearing a minute hard white recurved tooth (sometimes 

 two) on their tips ; colour pale greyish-green ; upper and largest pinna3 

 broadly linear-oblong, very obtuse and truncate, 6-8 lines long, 3-4 lines 

 broad, suberect, confluent at top, terminal lobe deltoid very obtuse ; lower 

 pinna occupying considerably more than half of the frond, much smaller than 

 upper, orbicular and gradually decreasing in size downwards; fertile fronds 

 longer than barren ones, but more slender with fewer and more distant 

 pinna? ; pinnae opposite and alternate, distant, ligulate, largest \ inch long, 

 1 line broad, apiculate, upper and larger ones slightly petiolate, terminal 

 one subcaudate, lower ones excessively small ; involucre finely reticulated, 

 margins entire ; scales on stipes 2 lines long, flat, deltoid-linear acuminate, 

 nerved longitudinally and much dilated at base. Veins conspicuous, simple 

 and forked, extending quite to margin, clavate, very few and distant, 

 usually only 4-jugate in the largest pinna3, the lowermost one or two pahs 

 not springing from the midrib (this character is also found in the smallest 

 orbicular pinna?), midrib usually forked at apex. 



Hab. Great Barrier Islet, Thames, 1883 : Mr. C. P. Winkelmann. 



Obs. I. — A species having close affinity with L. lanceolata and mem- 

 branacea, particularly the latter, but differing in several important par- 

 ticulars : — e.g., in its large normal sterile pinna? being fewer in number and 

 decurrent, and much more coarsely serrate, and fewer veined, with veins 

 extending to margins and the lowermost not springing from the midrib ; in 

 its small orbicular and deeply crenate-serrate pinna? occupying nearly two- 

 thirds of the frond ; and in all being more distant from each other on the 

 rhachis ; and in its upper fertile pinna? being petiolate, and their involucres 

 finely reticulate with entire margins. 



Obs. II. — I have had several fully fronded plants containing together 

 more than fifty specimens of barren and fertile fronds to look over, and 

 their uniformity in habit and character is great ; the plants differing only 

 in size. 



Genus 22. Polyp odium, Linn. 

 Polypodium rufobarbatum, sp. nov. 



Plant terrestrial, sub-erect, wholly covered with long and stout red and 

 shining jointed and moniliform hairs; rhizome creeping, densely hairy; 

 fronds f-1 inch distant on rhizome. Stipes 1-3 inches long, and rhachis, 

 slender, subflexuose, dry, channelled above, red, shining ; frond 4-6 inches 

 long, sublinear-ovate, acuminate, bipinnate, membranaceous, light green ; 

 pinnce petiolate, distant and subopposite, deltoid-acuminate, -f-1 inch long, 

 3-6 lines broad, spreading ; pinnules sessile, distant, pinnate below, pinnatifid 

 above, cut down quite to midrib of pinna?, decurrent, linear- oblong, obtuse, 



