316 FLORA OF TASMANIA. [Alge, by W. H. Harvey. 
branches, which like it are densely bristled with short, spinelike ramuli. The main branches are three or four times 
pinnate; the pinnæ 1-2 inches long, compressed, 4— line in diameter, tapering to the apex, and closely set with 
subulate pinnule, which are often again pinnulate. As in all the genus, some of the pinnul are lengthened out 
into cirrhous branches, thickened and hooked at the end. The colour is a full-red, becoming bright-scarlet on 
steeping in fresh-water. The substance is soft, and the plant adheres firmly to paper in drying. The cystocarps 
are globose, of large size, and scattered on the pinnules. 
This appears to us to be a strongly-marked species, readily distinguished by its flattened stem. It is more 
abundant at Western Port and on the coast of Victoria than in Tasmania. 
i Gen. LXXIV. SOLIERIA, J. 4g. 
(J. Ag. Alg. Medit. p. 156. Endi. 3rd Suppl. p. 53. Kütz. Sp. Alg. p. 748. J. Ag. Sp. Alg. ii. p. 721.) 
l. Solieria australis (Harv.) ; fronde dendroidea (1-2-pedali) robusta decomposite ramosissima, 
ramis alternis sparsisve approximatis pluries alterne compositis, ramulis ultimis linearibus acutis basi atte- 
nuatis, cystocarpiis in ramulis semi-immersis.—Harv. in Trans. R. I. Acad. xxii. p. 552; Harv. Aig. 
Ersic. n. 346. 
Has. Georgetown. 
Distris. Western Australia. 
Much larger in all its parts and more branching than 8. chordalis, with less tapering branches, and a firmer 
and more fleshy substance. The Georgetown specimens are still larger than those from Western Australia. 
Teıse VIII. CHAETANGIEZ. 
Gen. LXXV. CHAETANGIUM, Kütz. 
(Kiitz. Phyc. Gen. p. 392. Sp. Alg. p. 792. J. Ag. Sp. Alg. ii. p. 458. Nothogenia, Mont. An. Sc. Nat. 
1843, p. 303.) 
1. Chzetangium? (Nothogenia ?) flabellatum (Harv.) ; fronde cartilagineo-cornea lucida rubra 
angustissime lineari compressa regulariter dichotoma fastigiata, segmentis patentibus flabellatim expansis 
pluries furcatis, apicibus obtusis. 
Has. Port Arthur, W. H. H. Tasmania, C. Stuart. 
Root scutate. Fronds densely tufted, 2-3 inches high, fastigiate, many times dichotomous, the lower forkings 
distant, the upper closely approximated ; the ultimate segments sometimes short, sometimes lengthened out and 
filiform, always obtuse. The frond is strongly compressed, almost flattened, but very narrow, not more than 4 line 
in breadth. The colour is rather a bright purplish-red, and the surface somewhat shining. The substance is very 
similar to that of Gelidium corneum or cartilagineum. No fruit seen, and the genus therefore doubtful.—The in- 
ternal structure of the frond is very similar to that of Chatangium variolosum, which also agrees with our plant in 
ramification ; but our plant is much narrower, of a brighter colour, and more horny substance. 
2 Chetangium? Lingula (Harv.); fronde pusilla simplici vel semel furcata plana lanceolata car- 
tilagineo-cornea siccitate rigida basi et apice attenuata obtusa, strato interiore filorum laxiore, peripherico 
densissimo, cystocarpiis numerosis per frondem sparsis. 
Has. On rocks: Brown’s River, Gunn. 
Fronds tufted, an inch or two high, about two lines broad, flat, lanceolate, either quite simple or once forked, 
E rigid when dry, tapering to each end, the apex blunt. The interior stratum of the frond is much more lax 
than in other species of the genus, and the exterior stratum more dense. The structure of the cystocarp is that of 
Chetangium.—Our specimens are covered with fruit, and therefore, we suppose, full-grown. 
