26 4. CYATUEA. 



49. C. dealbata, Sw. ; unarmed or slightly asperous ; rachises and eoste clothed 

 with pale, ferruginous, deciduous tomentum ; fr. subcoriaceous, bi-tripinnate ; 

 pinnce oblong, acuminate, pure white beneath from the presence of a deciduous 

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

 serrated ; sort copious, sometimes 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. — m. Sp. 1. p. 27. 

 Uich. Fl. N. Zeal. p. 77. t. 10.— /3 subglaucous, but not white, beneath. 



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

 Sir W. Norris, sterile. Lord Howe's Island (along with var. ^), Milne & McGilivray. 

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



50. C. aneitense, Hk. ; unarmed ; main and second, rachises eheneous, purple- 

 black, quite smooth ; fr. coriaceo-membranaceous ; prim, pinnce 1-1 J in. 1., 4-6 

 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, pex-- 

 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 ; 

 uU. rachises and costce villous, with narrow scales. 



Hab. Isle of Aueiteum, N. Hebrides, Milne, McQiUvray. Teruate, Bei-h. Hort. Calc. 

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



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

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

 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 ; pa/raphi/ses iew, 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. 1. p. 36. 



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



62. C. leucolepis, Mett. ; unarmed, and hairy only on the costas above ifr. ample, 

 firra-membranaceous, bipinnate, lurid-green, paler beneath ; prim, pinncs 1-^ in. 1. ; 

 pinnl. sessile or subpetiolate, paleaceous, with whitish bullate scales on the costte 

 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 ; lobes 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 - persistent, then breaking away at the summit, and 

 eventually forming irregular lobes. — Mett. in Miq. Ann. Mtts. Bot. L. Bat. 1, 1. c.^ ' 

 p. 66. 



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

 placed here in the first edition, as distinct. 



53. C. Milnei, Hk. ; caud. 30 ft. 1., 9 in. diara. ; fr. subcoriaceous, dark 

 blackish-green above, paler beneath; rachises palish-brown, asperous, woolly, 

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

 tomentum ; pinnw 1^-2 ft. 1., 6-10 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 the costule ; invol. membranaceous, rather firm, long-persistent 



