CoLENSo. — On Neiv Cryptogamic Planta. 453 



(lanceolate shape) at apices, and there very prominent on the 

 upper surface, not extending to margin. Involucre very mem- 

 branous, intramarginal, 2 (sometimes 3) on the larger seg- 

 ments, only 1 on the smaller ones, narrow-linear sub 2 lines 

 long, ends sub-acute. Sori light reddish-brown, largely ap- 

 pearing. 



Hab. On dry hilly ground at Kuripapango, County of 

 Hawke's Bay ; 1889 : Mr. Plnckney. 



Obs. It is not without some hesitation, and only after a 

 long and protracted examination, that I advance this fern as a 

 ,sp. nov., for certainly it is pretty closely allied to A. hookeri- 

 anum, mihi (var. adiantoidcs, Eaoul) ; but it differs from that 

 fern in several characters, which, moreover, are constaiit in 

 all the specimens I have seen. A. hookeriamcvi in all its 

 forms (whether the larger var. figured by Eaoul, " Choix de 

 Plantes de la Nouvelle-Zelande," pi. i., — or the smaller ones 

 figured by Hooker, " Icones Plantarum," vol. x., tab. 983) has 

 very broad segments, thus described by Eaoul: " flabellato- 

 rotundatis crenatis " (I.e.); by J. D. Hooker, " rhombeo-sub- 

 rotund," "Handbook N.Z. Flora," p. 373; and by Baker, 

 "rounded and crenate," " Synopsis Filicum," p. 213, — who also 

 says, " the pinnte and pinnules in shape resemble those of 

 Asi)knmm rnta-viuraria," which characters, however, are 

 not in this plant. The narrow sharply-toothed segments of 

 this fern are also margined white with peculiar apical termina- 

 tions to their veins, which are also ver\- conspicuous and more 

 simple ; the large basal scales are without the clear intra- 

 marginal continuous line so striking in A. Jiookerianum, and 

 are irregularly and coarsely cancellate ; while the very long 

 capillary and distant petiolules, together with their narrow 

 segments, give this fern a light, airy, and graceful appearance,, 

 which is also very attractive. 



2. A. graclllimum, sp, nov. 



Plant tufted; caudex short, composed of coalescent stipites,. 

 very scaly ; scales membranaceous, softish, shining, subulate, 

 ^in. long, 2 lines broad at base, cells there sub 40 wide, more 

 sub-ciliate with smaller and narrov/er cells than in A. ornatum 

 (siijyra). Fronds 8-10, erect, drooping, 12in.-14in. high, 

 membranous, soft, flaccid, glabrous, darkish-green. Stipe 

 4in.-5in. long, slender, pale, dryish, sulcated, densely scaly ; 

 scales persistent, red-brown, of various sizes. Frond 8in.-9in. 

 long, oblong-ovate, tripinnate, rhachises and petioles of pin- 

 nules scaly; pinnae alternate, regular, distant (lin.-l^in. 

 apart on main rhachis), 3in. long at middle of frond, the 

 3 lower pairs slightly decreasing in size ; pinnules distant, 

 petiolate ; petioles slender, rather long, decurrent to next 

 pinnule (sub-pinnatifid), margin thickened ; the basal pin- 



