THE FERN WORLD OF AUSTRALIA. 
51 
firm rigid, of a dark color when old. Adelaide Biver, ^orth 
Australia ; and Rockingham Bay, Daintree River, Herbert River, 
and Islands off the coast, Queensland. 
XXVIII. MONOGRAMME. ScHKUHR. 
Rhizome slender, creeping. Fronds simple, narrow, veinless, 
except the costa. Sori in a continuous line in the upper part of the 
frond, in a groove opening along the costa, the margins of the 
groove forming an indusium along one or both sides of the sorus. 
Name from the Greek, alluding to the single line of sori. 
M. Junghuhnii, Hook. Var. tenella. Rhizome almost filiform, 
intricately matted, covered with fine hair-like scales. Fronds 
slender, grass-like, two to six inches high, entire, scarcely half-line 
broad, flat with a prominent costa in the barren part, the upper 
fertile half rather broader, Rockingham Bay, Queensland. 
XXIX.— DooDiA. R. Br. 
Rhizome ascending. Fronds pinnate or pinnatifid. Sori oblong 
or shortly linear, on tranverse veinlets connecting the forked veins 
proceeding from the mid-rib, in one or two rows parallel to the 
mid-rib, on each side, with an indusium of the same shape, pro- 
ceeding from the veinlet and opening on the inner side. Ferns all 
more or less scabrous. Named in honor of S. Doody, an old author 
on English Cryptogamic Botany. 
D. aspera, R- Br. Prickly fern. Rhizome short, decumbent 
or ascending black, clothed with shiny black lanceolate scales, which 
become more dense on the short black bases of the stipites. Fronds 
erect, rigid, from twelve to over eighteen inclies high, the stipes, 
rhachis and costules muricate or scabrous. Pinnules or segments 
numerous, all attached by their broad or dilated base, rigidly 
serrulate, those in the centre of the frond lanceolate-falcate, (in 
Queensland specimens often over three inches long) about two inches 
long, the upper ones shorter and more confluent, gradually reduced 
to the lanceolate point of the frond, (in the Queensland more 
abruptly ending in a longer segment) the lower segments more 
distinct, gradually shorter, the lowest reduced to small wing-like 
appendages to the rhachis. Sori ovate or almost rounded, usually 
in a single row on each side of the segments at a little distance 
from the costule, but in the Queensland larger specimens usually in 
two rows on each side, and the indusium more lunulate and persis- 
tent. A common creek-side or scrub fern in Queensland and N. S, 
Wales, also in several parts of Gippsland, Victoria. 
Var. blechnoides, abbreviated pinnae or segments at base of 
frond more distant, and sometimes only attached by the midrib. 
Sori usually smaller and very near the costule in a single row on 
each side, rarely a few small ones outside the row. So far as known 
this form is confined to N. S. Wales. 
Var. heterophylla. Stipites tufted, slender, fronds one to one 
