DICKSONIA. 



glanduloRc. (Tab. XXVHI. D.) — Sitolobium llaccidmn, ,/. 

 iSui. Ell. J'il. P]iilipp. p. 418, cxcl. sijn. {name on ft/). 



Hah. Luzon, ISIaiiilla, Cumimj, n. 108, 145 and 222.— This well-markca 

 plant agrees neither with the description nor fifjure ofjD./^acfif/a, to whicli 

 Mr. J. Smith refers it. It is peculiarly rigid, particularly the fertile 

 specimens; the rachiscs very stout and*straight ; the primary pinnre much 

 attenuated into a caudate point ; pinnules rigid, with dark hrown promi- 

 nent veins. Barren segments, or pinnules, hroadcr than the fertile ones, 

 and the primary pinna; less caudate. 



Douhtfid Species of this Section. 



47. D, obtusifolia, Willd. ; " frond pinnate, pinnce pinnati- 

 lid, segments ovato-oblong roundish obtuse inciso-dentatc." 

 Willd. Sp. PL V. p. 483. Patania obtusifolia, Pr. Ptcrid. p. 

 138, /. b,f. 14. — Hab. Caraccas, Bredemeyer. — Willdcnow 

 observes, " ab omnibus frondc bipinuatifida laciniis margine 

 rotundatis diversa." — This, if a distinct species, sliould per- 

 ha])s be placed near D. adiantoide.^, and the solitary lobe, fi- 

 gured by Presl, is not unlike some of the lobes of that species. 



48. D. strigosa, Sw. ; " fronds bipinnate, pinnoD ensiform 

 i:>innate rhombeo-oblong rather acute incised, segments obo- 

 vate dentate, stipes and rachis ])ubescent." Sw. Syu. Fil. p. 

 128. Willd. Sp. PL V, p. 484. Trichomanes strigosum, 

 Tluinh. Jap. p. 539. — Hab. Japap, Thunherg. 



(D. " (jluiinona, Wall." {according to J. Sm.). Sitolobium 

 glutinosum, ./. Sm. {name only). E. Indies, WallicJt. — I do 

 not find such a species anywhere noticed by Wallich). 



49. D. Domingensis, Desv. ; " pinnae petiolate, pinnules 

 lanceolate acute cuneate at the base ultimate ones coadunate, 

 inferior ones subpetiolate subauriculated above pinnatifido- 

 lobate, lobes broad acute remotely serrate, fertile ones crena- 

 to-serrate, caudex frutescent." Desv. Fil. in M^m. Soc. Linn. 

 W. p. 317. — Hab. " Hispaniola." 



50. D. mnliijida, Sw.; " fronds triplicato-pinnate, primary 

 and secondary pinna) acuminate, pinnules lanceolate obtuse 

 pinnatifid, segments bidcntate, veins hairy on both sides, sti- 

 pes and rachis pubescent." Sw. Syn. Fil. p. 137. Willd. 

 Sp. PL V. p. 489. Pr. Reliq. Hicnk. p. 68.— Hab. East In- 

 dies {Willd.) — Willdenow brings under this his " Civnopte- 

 ris Japonica, Phyt. p. 14, t, 8, f. 1, excl. syn.," whicli Mr. 

 Brown refers lo his Davallia Jiaccida., as perhaps a variety 

 of it, and, certainly, a species of Davallia. 



51. D. millefolium, Desv.; " pinnules attenuate sub-caiulate 

 ultimate ones oblong deeply pinnatifid cuneate at the l>ase 

 auricled above, segments subtridentate obtuse uncinate, 



