DICKSONIA. 71 



1 1. 1). (Iiibin, Gatid.; caudi-x cifcpin^' r, iVoiids trii.iiniah; 

 subcoriaceous, i)iiuuu deeply i)iMiuili(id in the larger ones 

 down to the winged raeliis laneeolate inciso-serrate, the low- 

 er ones remote and again ))innalifid hairy beneath (at length 

 ghd)rous), sori gU)bose, njiper valve of tlie involuere Ibnned 

 of a scarcely changed tooth or lobule of the frond reflexed, 

 lower one small convex meiubranaceous and jagged. (Tab. 

 WIV. C.) — Cundich. in Frcijc. J'oy. Dot. p.'Sii?. Davallia 

 dubia, Ih: Prodr. p. 157. Balantiuni Brownianum, Pr.Pter. 

 p. 134, f. 5,/. 4. Dicksonia fallax, Kaulf. in Sieh. St///. Fit. 

 n. Ill, Fl. Mi.vf. M.247. Woodsia.? dubia, JJesv. 



Hal). Port Jackson, and Tasmania, Brown, Siaber, Sinclair, Bynoe, 

 (I'uun. J. D. Hooker. — A pale slravv-colouvetl species, with coriaceous riKid 

 ajiparently ample fronds, generally with rusty hairs beneath. Mr. Brown 

 places this plant in Davallia, because he does not consider the small rellcx- 

 cd lobule which i)artially covers the sori as a portion of the involucre, which 

 may well be considered doubtful, as is that of D.adiantoides : but from ana- 

 logy, and especially from the dose affinity of the s])ecieswilh D.slramiuea, 

 I prefer ranging it in Dicksonia, as Gaudichaud and Kaulfuss have done. 

 Presl represents a more evident two-valved involucre than I iind, and one 

 exactly resembling that of Dicksonia straminca, Labill. 



12. D. straminea, Lab.; caudex creeping.^, "fronds tripli- 

 cato-pinnate, pinnae acuminate greenish-yellow beneath, pin- 

 nides tra])eziform-oblong obtusely serrated, stipes and rachis 

 naked semiterete fin-rowed." Labill. Sert. Austr. Caled. p. 

 7, t. 10. 



Hab. New Caledonia, Labillurdicrc. Offach, He Waigiou, D'Urville. — 

 This has much the habit and general appearance of our D. dubia {Da- 

 vallia dubia, IJr.), so that, were it not for the glabrous fronds (of rare occur- 

 rence in D. dubia), and the larger inferior valve of the involucre, I should 

 take the two species to be identical. 



13. Ti.damUioides, Br.; caudex creeping.?, "fronds supra- 

 deconi])Ound membranaceous flaccid somewhat hairy beneath, 

 pinnules oblong incised with few sori, involucres glabrous,ex- 

 terior valve smaller." /}'/-. Prodr. p. 158. Sitolobium, J. S/n. 



Hal). Port Jackson, Brown. — " Closely allied to Damllia dubia.^' 



14. D. Kdiilfussidtid, Gaud.; "fronds triplicato-pinnate, 

 primary and secondary pinnaj elongato-acinninate at the apex 

 serrulate, ))innules ovate-oblong rather acute crenulato-den- 

 tate cuneate at the base beneath and on the rachis villous, 

 involucres ])ilose." Gaud, in Frcyc. loij. p. 308. "Davallia 

 hirta," Kaulf. En. Fil. p •2-23. 



Hab. Mowi, iu the Sandwich Islands, 12 — 1-tOOO feet of elevation, Gau- 

 dichaud. Owhyhcc, Cliamisso ;' — Gaudichaud says his plant has a great 

 rostmblancc to the large variety of Dicksonia davallioides, Br.; and quotes 

 Kaulfuss' Damllia hiria of Oalui as the same, observing that although the 

 upper valve of the involucre, formed by ihc inflexed lobule of the frond, is 



