2G 4. CYATIIEA. 



49. C. dealbata, Sw. ; unarmed or sliglitly asperous ; racMscs and costce clothed 

 with pale, ferruginous, deciduous tomentum ; fy. suhcoriaceous, bi-tripinnate ; 

 plnnce oblong, acuminate, pure white beneath from tlie presence of a deciduous 

 powder, deeply pinnatifid or pinnate at the base ; lobes oblong, acute, falcate, 

 serrated ; sori copious, sometiMies confined to the lower half of the lobes; invol. 

 rather small, globose, membranaceous, fragile, soon breaking down in an irregular 

 manner, the base often remaining an orbicular membrane. — Hk. Sp. 1. p. 27. 

 Rich. Fl. N. Zeal. 2)- 77. t. 10. — /3 subglaucous, but not white, beneath. 



Hab. N. Zealand, -where it seems generally to retain its pure white beneath. Penang, 

 Sir W. Norris, sterile. Lord Howe's Island (along with -var. (3), Milne & McGilim-ay. 

 — This latter island may be reckoned as in the N. Zealand group. 



60. C. aneitense, Hk. ; unarmed ; main and second, rachises ebeneous, purple- 

 black, quite smooth ; fr, coriaceo-membranaceous ; prim, pinnce 1-1^ in. 1., 4-5 

 in. w., sessile, or nearly so, oblong, shortly-acuminate, pinnatifid nearly to the 

 rachis ; lobes rather distant, oblong, acute, subserrated ; veins forked ; sori copious 

 intermediate between the costa and the margin ; invol. thin-membranaceous, per- 

 sistent, soon breaking down, and generally opening at the back so as to form a large, 

 lax, almost transparent, 2-lobed and ragged cup, often again irregularly lacerated ; 

 tilt, rachises and costce villous, with narrow scales. 



Hab. Isle of Aneiteum, N. Hebrides, Milne, McGilivray. Ternate, Uerh. Hort. Calc. 

 — This is quite new, and not known, apparently, to Brackenridge. 



61. C. nigricans^ Mett. ; "yj". coriaceous, opaque, green above, paler beneath, 

 bipinnatisecto-pinnatipartite ; rachis unarmed, purplish, glossy ; prim, pinnaz 

 subovato-lanceolate ; second, ones subsessile, elongato-oblong, acuminate, caudate 

 at the apex and sharply serrated, subglabrous above, beneath squamulose at the 

 costse and costules, with imbricated, white, bullate, ciliated scales ; lobes sub- 

 distinct, contiguous by the dilated base, elongato-oblong, subfalcate, attenuated 

 at the apex, obtuse or nearly so, serrated ; veins forked, rarely bifurcate ; sori 

 3-6 on each side the costule, the lowest ones distant from the costule, the rest near 

 to it ; recept. hemispherical ; paraphyses few, filiform, curved, generally torulose, 

 formed of cells tumid in the middle, the terminal cell subglobose, or more or less 

 dilated." — Mett. in Miq. Ann. Mus. Bot. L. Bat. \. p. 86. 



Hab. " Ualan, of the Caroline Islands, Mertens." — Unknown to me. 



52. C. leucolepis, Mett. ; unarmed, and hairy only on the costoe above •,jr, ample, 

 firm-membranaceous, bipinnate, lurid-green, paler beneath ; prim, pinnce 1^ in. 1. ; 

 pinnl. sessile or subj^etiolate, paleaceous, with whitish bullate scales on the costce 

 and costules beneath, 3-4 in. 1., from a broad base 1 in. w, (narrowest on the 

 inferior side), oblong, suddenly acuminate, pinnatifid f of the way to the 

 costule ; lohes oblong, obtuse, subfalcate, subentire ; veins all forked at the middle, 

 distant ; sori copious, rather distant, and forming a line on each side between the 

 costule and the margin ; invol. rather firm-membranaceous, of the same lurid- 

 green as the frond, long - i)ersistent, then breaking away at the summit, and 

 eventually forming irregular lobes. — JMett. in Miq. Ann. Mus. Bot. L. Bat. 1, 1. c.j, 

 p. 56. 



Hab. Aneitum, Milne. — We now regard the plants from Fiji and the Solomon Islands, 

 placed here in the first edition, as distinct. 



63. C. Milnei, Hk. ; caud. 30 ft. 1., 9 in, diam. ; fr. suhcoriaceous, dark 

 blackish-green aljove, paler beneath; rachises palish-brown, as])erous, woolly, 

 as well as the under side of the pinnce, near their base, with copious deciduous 

 tomentum ; pinnce ]|-2 ft. 1., G-10 in. w. ; pinnl. elongato-oblong, deeply to the 

 costules pinnatifid ; lobes oblong, falcate, subobtuse, crenato- serrate, the margins 

 a little recurved ; sori copious, moderately large, mostly situated at the base of 

 the lobes, near tlae costule ; invol. membranaceous, rather firm, long-persistent 



