HYMENOPllYLLUM. 9f) 



IJIiiiiic with .1 doubt, tliiukiiig it likclv to lie di/reiciit Troin the Cliiloaii 

 l)laiit (or lather IVoin tlic plant I take to he the true dicholomum of Cliiloe); 

 and it seems to me the more dubious beeausc the autlior does not notice the 

 remarkable spiniilose processes wliich are so conspicuous on the vachis and 

 stipes, and are independent of the ordinary wings. 



40. H. torliKhsum, Herb. Banks. ; rigid erect, I'ronds broad- 

 ly ovate lri]iinnati(id, the segments linear narrow more or less 

 undnlated and eris})ed sliarj)ly toothed (not i)licate), involu- 

 cres oval and elongated terminal uj)on the lower segments of 

 the ])innules, their ai)ices ciliato-dentate the valves short con- 

 tracted at the month, rachis and stipes with a crisped tortuous 

 sinuato-spinulose wing. Hook, et Grev. Ic. Fil. t. 129. H. 

 nigricans, Colla, in Act. Taur. 39, j} 32, t. 62, {ea; Herb. 

 Bonks.) 



Hab. Staten J^aud (not New Zealand as stated by mistake in the ' Icones 

 Filicum'), il/cHr/ts, Dr. EUjlits. Tierra del Fuego, Banks, Solandcr, Dar- 

 win,.!. J), lldiihcr. Valdivia, Bridjcs, n. 7i)i». — Allied to //. dic]u)lo)niim ; 

 but the fronds are not plicate at the margin, and they are of a more rigid 

 texture; the involucres also are longer, distinctly ciliato-sphiulosc. Dis- 

 tinguished also by the absence of the soft spines on the stipes, rachis and 

 costte : though the remarkably tortuous nature of the wings on the rachis 

 and stipes gives them at first sight a scaly appearance. 



41. H. atlennatiimy Hook.; tall, fronds narrow-ovate atte- 

 nuated tripinnatifid, the segments linear scarcely rigid plane 

 (not undulated or ])licate) ultimate ones elongated ciliato-den- 

 tate, involucres terminal on the segments oblong sid;) cylindri- 

 cal contracted at the mouth with two short ciliato-dentate 

 valves or lips, wings of the rachis and of the long stijjcs (where 

 they reach to the base) very tortuous and dentato-spinulose. 

 (Tab. XXXVI. C.) 



Hab. Simimit of the Organ Mountains, Gardner, n. 5950. Chiloe, Cu- 

 viUkj, n. 6. — Evidently allied to H. tortuosum, but much larger (fronds 6 — 

 7 inclics and stipes nearly the same) ; and in none of my specimens are the 

 fronds either undulate or plicate; the texture is more membranaceous and 

 tender, the whole plant more flaccid and the margins ciliato- rather than 

 spiuuloso-dentatc. 



42. H. Neesii, Hook. ; erect small, fronds narrow ovate 

 tripinnatifid, the segments linear olten forked, the margins 

 deeply undulate and crisped spinuloso-serrate, involucres 

 solitary supraaxillary oblong subcylindrical spinuloso-dentate 

 at the apex the mouth contracted witli two short acute valves 

 or lips, rachis and stipes setose especially at the base broadly 

 winged with a crisped undulated serrated membrane. H. 

 dichotomum, Nees in Nov. Act. Acad. J 823, p. 127, /. 13, /.' 

 4, [sterile), not Cav. Trichomancs Neesii, Blinne, Jvnnnt. 

 Fit. Jar. p. 226. T. aculeatum, J. Sni. in Kn. Fil. Philipp. 



Hab. .Java, IHumc Luzon, Ctnning, n. I t(i. — 'I'his species, together 



H 2 



