the Colony of Western Australia. 
543 
112. Dasya plumigera., n. sp. ; caule elato (pedali et ultra) crasso villis stipato sub-dichotomo, seg- 
mentis ramiferis; ramis seoundariis longissimis (1-2 pedalibus) caule multo tenuioribus 
glabris corticatis simplicibus inferne sa3pe denudatis superne pulcherrime plumoso-pinnatis; 
pinnis alternis crebris liorizontalibus plus minus eoorticatis polysiphoniis iterum pinnu- 
latis ; pinnulis oligosiphoniis brevissimis ramelliferis ; ramellis diohotomis attenuatis obtusis, 
articulis diametro 2-4-plo-longioribus; ceramidiis magnis pedicellatis inflato-ovatis ore pro- 
minulo; stichidiis minutis oblongis acutis. King George’s Sound, and Cape Riche, and 
Garden Island; cast ashore and dredged. Also sent by Dr. Curdie from Cape Northum- 
berland. A superb species, with branches like ostrich feathers (32). 
113. Dasya villosa, Herv. Ner. Austr., t. 20. Garden Island, Rottnest, and King George’s Sound 
(109). Very variable in size and ramification, putting on as many phases as D. elegans, its 
representative species. 
114. DkSYX mollis. Ilarv. Ner. Bor. Amer. King George’s Sound, rare (64). 
115. Dasya Gallitliamnion. Polysiplionia CalUthamnion, Sond. ! in PI. Preiss. Abundant on the 
stems of Caulinia aniarciica., &c. Rottnest and Fremantle (106). 
116. Dasya fenera, n. sp. ; cartilaginea, mox acre diliquescens, siccitate rosea; fronde tetrasipho- 
nia corticata decomposite ramosissima subdichotoma flexuosa; ramis irregulariter divisis, 
minoribus stepe secundis, ultimis attenuatis acutis, omnibus denudatis v. ramellis tenuissi- 
mis laxe vestitis; ramellis verticillatis basi ramosis subsimplicibus strictis cylindraceis 
obtusis ; ceramidiis ovatis pedicellatis ; stichidiis sparsis v. fascioulatis lanceolatis e ramulis 
enatis. Very common in May at Fremantle. Dredged in January and February at King 
George’s Sound; and in March at Cape Riche. When growing it is a very pale brown, and 
is then crisp and brittle; but almost immediately it grows flaccid in the air, assumes a bril- 
liant rosy red, and soon melts into a gelatinous mass (78). 
117. Dasya Lallemandi, Mont.! D. gracilis, Harv. MS. Perpendicular sides of the Jetty reef, at 
Rottnest, and rarely on Zostera leaves, June. I have compared my specimens with one 
from the Red Sea, given me by Dr. Montague, and find them to agree in all essential cha- 
racters. The colour, when growing, is brownish red, becoming purple in drying. Dr. Mon- 
tague's specimen is faded (212). 
118. Dasya (^Stichocarpus) crassipes, n. sp.; caule incrassato hispido (3-4 unciali) vage diviso cor- 
ticato ramis artioulatis onusto ; ramis (2-3 uncialibus) simplicibus glabris plus minus dis- 
tincte articulatis polysiphoniis densissime pinnatis ambitu linearibus ; pinnis brevissimis 
(2-3 lineaslongis) oligosiphoniis dichotomo-multifidis, segmentis ultimis solum monosiphoniis 
acutis, articulis diametro requalibus vel subbrevioribus ; ceramidiis magnis inflato-globosis 
pedicellatis. Rottnest, on the perpendicular sides of the Jetty reef, and cast ashore (189). 
It sometimes forms large tufts 6-8 inches in diameter, is very rigid, resists the action of 
fresh water; is carmine when fresh, but becomes brown in drying, and scarcely adheres to 
paper. 
119. Dasya pellucida, Harv. Ner. Austr., t. 27. King George’s Sound, very rare (308). More 
squarrose than the Cape of Good Hope plant, but otherwise the same. 
