322 FLORA OF TASMANIA. [Alge, by W. H. Harvey. 
Gen. LXXXIX. ERYTHROCLONIUM, Sond. 
(Sond. in Linnea, xxv. p. 691.) 
l. Erythroclonium Muelleri (Sond. l.c. p. 692).— Rhabdonia? verticillata, Harv. im Herb. 
T.C.D. : 
Has. Georgetown, W. H. H. 
DrsrarB. South coast of New Holland. 
The Georgetown specimens are very much larger than those from New Holland, but do not appear specifically 
different. 
Gen. XC. GLOIOSACCION, Zarv. (nov. gen.) 
Frons sacciformis, succo gelatinoso repleta, membranacea, ex stratis fere tribus conflata; stratwm me- 
dullare cellulis maximis gelatinosis cito ruptis, intermedium cellulis rotundato-angulatis coloratis, corticale 
cellulis minimis in fila vertioalia ordinatis. Fruct.: 1, favellidia globosa in strato intermedio immersa, 
nucleolis pluribus demum confluentibus composita; 2, fefraspore . . .? 
1. Gloiosaccion Brownii (Harv. Phyc. Austr. t. 88).—Halosaccion firmum ef H. hydrophora, 
Harv. Alg. Austr. Exsie. n. 419, 420 (nec aliorum). Fucus allantoides, R. Br. MSS. ? in Turn. Hist. iv. 
p. 105. 
Var. a. membranaceum ; fronde sanguinea, membranacea.— Harv. Aly. Exsic. n. 419. 
Var. 8. coriacea ; fronde livido-purpurea, coriacea.—Harv. d c. n. 420. 
Has. Var. a. Georgetown, JF. H. H. 
DisrarB, Both vars. at Fremantle, West Australia. Var. a. Port Phillip. 
I formerly mistook this plant for Halosaccion, a genus founded on Fucus saccatus, Turn., to which externally it 
bears the closest resemblance. The substance, structure, and contents are however very different. I now suppose 
it may be the plant alluded to by Turner, in his remarks under F. saccatus, as having been brought from Australia 
by Mr. Brown, and characterized by being filled with pellucid jelly. 
| Gen. XCI. GYMNOGONGRUS, Mart. 
(Mart. Bras. p. 27, J. Ag. Sp. Alg. ii. p. 313.—Zylocarpus, Oncotylus, ete., Kütz.) 
l. Gymnogongrus fastigiatus (Harv.); fronde pusilla filiformi vel parum compressa dichotome 
ramosissima fastigiata flabelliformi, ramis ramulisque densis apice attenuatis subacutis, axillis obtusis, cysto- 
carpiis infra apices ramulorum nodoso-incrassatis immersis circumcirca prominentibus. 
Has. Granite rocks at half-tide: Forester’s River, Gunn. 
Fronds forming dense pulvinate tufts, from 1-13 inch high, about as thick as hog’s-bristle, filiform or subcom- 
pressed, rising with a simple stipes for half an inch, then forked, and afterwards many times dichotomous, the upper 
divisions being close together. All the branches are suberect, but the axils are rounded, though narrow. The 
ultimate ramuli taper slightly to the point, and are all of one height. — Cystocarps either solitary or two or three in 
succession, immersed in the terminal ramuli.—In habit and size this species resembles G. densus and G. pygmaus. 
?. Gymnogongrus furcellatus (?) (Ag.; J. Ag. Sp. Alg. ii. p. 318).—Spherococcus furcellatus, 
Kütz. Sp. Alg. p. 131. 
Haz. Southport, C. Stuart. 
Disrrib. New Zealand. Pacific coasts of South America. 
The specimens are not very satisfactory. They are more slender than the ordinary form, and less compressed, 
but scarcely specifically different. 
