4. CTATHEA. 25 



scarcely 3 lines 1., from a broad base linear, acute, snbfalcate ; I'eins sank, incon- 

 spicuons ; son near the middle of the pinnl., occupying the whole space between 

 the costule and the recurved margin ; invol. thm-membranaceons, white and 

 delicate, breaking into variously lobed and laciniated segments. 



Eab. Island of Ternale, De Vfie^e & TeijsTnann, n. 1141. — Judging from the solitary 

 but very perfect specimen in my possession, this is a very distinct species. 



45. C. KhrtJialsii, Mett. ;Jr. bipinnate, sabcoriaceo-membranaceous, dull green ; 

 prim.pinnw 1 ft. 1. ; pinnl. sessUe, 2-2^ in. 1., ^ in. w., oblong, acuminate, sparingly 

 bullato-paleaceous beneath ; lobes narrow-oblong, obtuse, scarcely serrate, subfal- 

 cate ; sort more or less copious, chiefly in the lower part of the lobe close to the 

 costule ; invoL firm-membranaceous, breaking firstly at the summit, at length 

 falling away in fragments. — Meti. in Miq. Ann. Mus. Bat. L. Bat. 1. p. 57. 



Eab. Sumatra, Korlhali; Java (ex Herh. Miquel.). — My named specimens from 

 Sumatra have old fructifications : those from Java (without name) have the involucres 

 exactly as described by Mettenius. Perhaps too near his Semiidia (not Oi/athea) crenulata. 



fff Species of Australia, iV". Zealand, and the Pacific Islands ; these latter, of 

 the N. Pacific, may he expected oeeasioiiuilb/ to extend to the Malay Archipelago and 

 Peninsula. Sp. 46-55. 



46. C. Lindsoj/aTM, Hk. ; main and second, rachises quite unarmed ; fr. mem- 

 branaceous, glabrous, except on the costce and costules which are subvillous and 

 have many scattered, smaU, bullate scales ; prim. pinncB 2 ft. 1., pinnate nearly to 

 the apex ; pinnl. 3-4 in. 1., oblong, acuminated, deeply pinnatifid ; kibes oblong, 

 subfsilcate, serrated ; sori on the lower half of the lobes on the forking of the 

 veins ; invol. globose, firm-membranaceous, brown, opening with a circular, rather 

 small and jagged mouth. 



Hab. Mount Lindsay, N. £. Australia, Walt. Sill. — ^The fiist true Cyathea found in 

 Australia. My specimens are very perfect as far as the primary pinnae and fructifications 

 are concerned. It might pass for a membranaceous form of C. javanica ; but the cup- 

 formed involucre is much more permanent. 



47. C. meduUaris, Sw. ; caud. lofty ; st. glaucous-black, and the rachises muri- 

 cated with short spinous tubercles ; jr. ample, bi-tripinnate, coriaceous ; second, 

 pinnce 5-6 in. 1., |-] in. br., deeply pinnatifid or again pinnate ; pinnl. or segm. 

 oblong or linear-oblong, obtnse, coarsely serrated in the sterile specimens, lobato- 

 pinnatifid in the fertile ones, with the margins revolute ; sori one to each lobule 

 of the pinnl. or lobe, intermediate between the subpaleaceous costule and the 

 margin ; invol. firm, membranaceous, brown, soon breaking open irregularly at 

 the apex with an irregular, often 2-lobed, margin (young fr. densely-paleaceous, 

 with soft, deciduous hairs). — Hh. Sp. 1. p. 27, and Gard. Perns, t. 25. 



Hab. N. Zealand ; and the same, or a very closely allied form, has lately been sent 

 from the colony of Yictoiia by our indefatigable conespondent Baron von Mueller. 



48. C. Gunninghami, Hk. f.; caud. 12-15 ft. 1.; st. and main racMses stra- 

 mineous and asperous; Jr. subcoriaceons, but flaccid ("soft, withering on the 

 trunk"), tripinnate ; prim, pinnae l5-2ft. 1. ; second, ones 3-5 in. 1., j-l in. w., 

 oblong, acuminate, pinnatifid only at the apex ; lobes or ultimate pinnl. 4-6 in. 1., 

 linear, obtuse, pinnatifid some way down with great regularity ; lobules entire ; 

 veins forked ; sori one to each lobe, rather nearer the costule than the margin ; 

 incoL at first entire, globose, very thin, afterwards breaking down very irregularly, 

 often leaving a large patent lobe or scale on the underside, as in Hemitelia; costae 

 and costules villous and sparingly narrow-paleaceous. — Hi. fll. in Ic. PI. t. 985. 



Hab. N. Zealand, — ^Perhaps too near C. medullaris. I possess it among Forster's 

 plants from N. Zealand, as well as from Colenso and Allan Cunningham. It is well 

 represented in the Icones Plant. I. c. 



