in old specimens, iz cylindrical, without lateral teeth ; but every other por- 
tion of the frond is closely pectinato-pinnatifid, with broadly-subulate, flat, 
slightly-incurved, alternate laciniz, which are about equal in length to the 
broadly-linear undivided portion or jugament of the frond. The midrib is 
immersed, more or less prominent, and in the younger portions rather obso- 
lete. he nemathecia are very minute, globose, and sessile a short distance 
below the apex of the lacinize, in fertile specimens. The colour is a dark 
purplish-red, which is either preserved in drying or becomes darker and 
browner. The substance is tough, somewhat horny when dry, in which state 
the frond does not adhere to paper. 
A flatter and more slender plant than Phacelocarpus Labillar- 
diert (Plate CLNIII.), with more closely placed and not so deeply 
cut marginal laciniz, a darker colour, and, above all, a different 
fructification. If the fructification here represented be normal, 
it would in itself suffice to mark this species; but it is so very 
different from that of the typical species, that I hesitate to con- 
sider it so. However this may be, the tubercles contain feéra- 
spores of the form and structure proper to the genus. 
P. complanatus, originally discovered by Dr. Curdie at the 
mouth of the Glenelg, seems to be not uncommon along the 
coast, eastward as far at least as Port Phillip, and occurs also in 
Tasmania. By much the handsomest specimens I have seen 
are those received from Mr. Rawlinson, through the kindness of 
Dr. Mueller. 
Fic. 1. A branch of PHACELOCARPUS COMPLANATUS,—the nalural size.’ 2. 
Apex of a branch. 3. Two fertile lacinulee, bearing nemathecia. 4. Te- 
traspores. 5. Cross section of the stem :—more or less magnified. 
oO, 
5 
