708, CXLVII. FILICES. [ Cyathea. 
1. C. Lindseyana, Hook. Syn. Filie. 25.—“ Trunk 10 to 12 ft. 
high, 12 inches in circumference.” Rhachis of the fronds in our 
specimens quite glabrous. Secondary pinnz 3 to 4 in. long. Pinnules 
much broader than in C. medullaris, the lower ones about 2 i in. long 
glabrous or with a few scaly hairs on the midrib, serrulate but not 
lobed. Soriin a double row very near the midrib and distant from the 
margin. Indusium long-persistent, opening irregularly at the apex. 
Queensland. Mount Lindsey, W. Hill. 
arachnoidea, Hook. Syn. Filic. 24.-— Trunk: a Es 
ed 
under side of the segments with a close whitish or ferruginous 
tomentum. Se ary pinne 3 to 5 in. long. Pinnules or segments 
puttion with recurved renei margins. Sori in a single row on each 
side of the midrib but occupying Sar) the whole breadth. Indusia 
pereunt globular, bursting irregularly at the apex. —F. Muell. 
Fragm. vi. 200. 
.Queensland. Rockingham Bay, Dallachy. Also in the Moluccas, Dallac 
specimens are not in fruit, but are otherwise precisely similar to the Molucca she 
from which the above character i is taken. 
. C. Macarthurii, F. Muell. Herb.—Trunk 10 to 12 ft. high. 
Fronds thrice pinnate, the rhachis densely covered with a whitish 
disappeared. Secondary pinnz 3 to 4 in. long. Lower pinnules quite. 
distinet though attached by a broad bas 3 to 5 lines long, minutely 
serrate-crenulate, the upper ones gradually smaller and confluent, the 
ges ending in a long dentate point. Sori rather small, on the short 
ateral branches of scarcely prominent forked veinlets, forming à TOW 
on each side of the central veins. Indusium complete and globular 
when young, but soon breaking up, leaving a perfect ring under the 
sorus or more frequ uently entirely falling away.— He mitelia Macarthur», 
F. Muell. een. viii. 176; Cyathea “Moorei, Hook. and Bak. Syn. 
` Filic. 453. 
N. S. Wales. Lord Howe’s Island, C. Moore, Lind and Fullagar. 
4. C. me dullaris, Swartz ; ; Hook. Spec. Filic. i. 26, Gard. Ferns, t. 
25.— Trunk attai 40 to 50 ft. densely covered with ma atted 
fibres in the lower part, marked higher up with the scars of fallen fronds 
and muricate at the top with the bases of old fronds. Fronds 10 to 20 ft. 
long, the rhachis and primary branches sprinkled with small tubercles. 
inne 4 to 6 in. long, with numerous pinnules, the lower 
ones confluent into a pinnatifid point. Sori one to each lobe 
of D pinnule and occupying the greater part of its length. Indusium 
