ALGÆ TASMANICÆ. : 403 
. Has. Sullivan’s Cove, Dr. Lyall; George Town, Mr. Gunn. 
Fam. 3. DELESSERIEZ, J. 4g. 
43. Delesseria crassinervia, Mont. 
Has. Sullivan's Cove, Dr. Lyall. 
44. Delesseria endiviefolia, Hook. fil. et Harv. ; fronde lineari 
vage dichotoma membrana crispatissima ae margine 
lobato, lobis demum dichotomo-multifidis obtusis, soris in 
lobuloram apicibus sparsis circularibus. 
Has. Tasmania, R. Gunn. Esq.—A very distinct species, 
having many essential characters in common with D. alata, 
but immediately distinguished by the excessively curled 
and finally lobed margin. The frond is 6-8 inches high, 
or more, with a strong costa, which gradually becomes 
Feb in the younger segments. 
5. Delesseria (Hemineura) frondosa, Hook. fil. et Harv.; 
yn tenui-membranacea late ovata pinnatifida v. bi- 
tripinnatifida, pinnulis lobatis obtusis subserratis, costa 
angustissima interrupta basi et apice laciniarum evanes- 
cente, coccidiis conico-cornutis in costa loborum sessilibus 
solitariis, soris marginalibus A: Nitophyllum uni- 
nerve, Harv. in, Herb. 
Has, Tasmania, Mr. Gunn. Tiésá is a remarkable plant in ` 
Many respects, and possibly may become the type of a 
| new genus, for which we would propose the name Hemi- 
. eura, in allusion to the curious interruption in the costa 
. of the frond, which becomes obsolete toward the base 
_ and apex of all the lobes, primary as well as secondary. 
_ The form of the conceptacles is also singular. We are not 
. Sufüciently acquainted with D. interrupta, Ag., and are 
. Unable to say whether it should tuit ie the emo proi 
: ax this or not. 
T itophyllum affine, Harv. 1. c. p. 447. 
-SR Nitophyllum panctatun, Grev.— Har L e:p. ss. 
Has. Tasmania, Mr, Gunn. ste 
= Nitophyllum Gunnianum, Mayo fas 
