312 FLORA OF TASMANIA. [Alge, by W. H. Harvey. 
DisrRrs. South coast of New Holland. New Zealand. Demerara. Estuaries of North American 
Rivers. Bonin Islands, near Japan, in /resh-water rivulets. 
. D. Delesseria endivisefolia (Hook. fil. et Harv. Lond. Journ. vi. p. 403; J. Ag. Sp. Alg. ii. 
p. 697; Harv. Ner. Austr. p. 115). 
Has. Georgetown. 
DisrnrB. South coasts of New Holland. 
6. Delesseria (Hemineura) frondosa (Hook. fil. et Harv. Lond. Journ. vi. p. 403; Harv. Ner. 
Austr. p. 116. t. 45; J. Ag. Sp. Alg. ii. p. 689). 
Has. Abundant in the Tamar, etc. 
DisrarB. South coasts of New Holland. 
A most variable species, putting on a thousand different forms in different localities. Sometimes the frond is 
broadly-ovate, little divided, and merely crenate-lobed round the margin; sometimes the margin is excessively 
erisped, and deeply cut into innumerable crowded lobes. Sometimes the frond is narrow-linear, pinnatifid or 
bipinnatifid. The margin is sometimes quite entire, sometimes sharply serrate. Size, substance, and colour, are 
equally variable. 
Gen. LXV. NITOPHYLLUM, Grev. 
(Grev. Alg. Brit. p. 77. Harv. Ner. Austr. p. 118. J. Ag. Sp. Alg. ii. p. 651.) 
1. Nitophyllum crispum (Kütz. Sp. Alg. p. 868; J. Ag. Sp. Alg. ii. p. 662).—N. punctatum, 
Harv. in Lond. Journ. and Ner. Austr. p. 118. 
Has. Very abundant at and above Georgetown. 
DisrRiB. Coast of Victoria, rather rare. 
2. Nitophyllum stipitatum; stipite anguste cuneato elongato costato in frondem roseam sub- 
palmatifidam abeunte, costis in basi segmentorum mox evanescentibus, segmentis latocuneatis profunde in- 
cisis v. semipartitis medio incrassatis, margine simplici, soris orbicularibus per totam frondem sparsis. 
Has. East coast, R. Gunn, Esq. | 
_ Stipes nearly an inch high, strongly ribbed, narrow, cuneate, widening into the base of a subpalmate frond, 
2-4 inches in expansion. Segments of the frond costate at base, broadly cuneate, irregularly cleft. Sori scattered 
over the whole surface. 
9. Nitophyllum Gunnianum (Harv. Lond. Journ. vi. p. 403; Harv. Ner. Austr. p. 120. t. 47; 
J. Ag. Sp. Alg. ii. p. 663). 
Has. Georgetown, common. 
Disrris. Heads of Port Phillip. 
The figure in Ner. Austr. is very incorrectly coloured. The frond, when fresh, is of a full, but rather dull- 
red colour. If dried without previous steeping in fresh-water, it becomes very dark and brown. 
4. Nitophyllum affine (Harv. Lond. Journ. iii. p. 447; J. Ag. Sp. Alg. ii. p. 657; Harv. Ner. 
Austr. p. 119). 
Haz. Georgetown. 
DisrRrB. Coast of Victoria. | 
D. Nitophyllum multipartitum (Hook. fil. et Harv. Lond, Journ. vi. p. 404; Harv. Ner. Austr. 
P. 121; J. Ag. Sp. Alg. ii. p. 664). : 3 
Han, Georgetown. Brown's River, etc. 
Distrig. Coast of Victoria. 
